Tag Archives: rotary compressor

China Hot selling Oil Free Rotary Screw Industrial Two Stage Air Compressor Napu Ofw75VSD with Best Sales

Product Description

The founder led his team and launched an after-sales service company specialised in oil-free rotary screw air compressors in 2005, offering a range of products from airends to compressors of leading brands. With previous experience in maunufacuting oil-free air compressors, the founder established a workshop in ZheJiang in 2009 specialised in manufacturing oil-free airends and on site testing.
The workshop was such a success ZheJiang NAPU Compressor Co. Ltd. was then founded in 2012.
NAPU Compressor is compliant with ISO 8573-1, Class 0 standard and audited by TUV Rheinland and China National Quality Inspection Center of Compressor and Refrigerator.
The company is also compliant with ISO 9001:14001 and is CHINAMFG in the domestic market for its quality-driven culture. The oil-free compressors manufactured by the company are used in a variety of sectors including some of our valued clients like CASC-China Aerospace Science Corporation, NORINCO-China North Industries Group, CNNC-China National Nuclear Group, CHANG AN AUTO, SINOPHARM, BYD and CALT and Sino-Chemical etc.
Continuous improvement in productivity and efficiency is our goal, and we continue to offer an extensive services including our own branded oil-free compressor package as well as after-sales services for other leading brands.

Napu Model No.	Working pressure	FAD	Dimension(LWHmm)			Weight (kg)	Speed RPM	Air outlet pipe diameter	Power	Air Cooling capacity
	BarG	m³/min	mm	mm	mm	kg	rpm		kW	m3/h
OFW55VSD	7.5	4.5-8.8	2100	1450	2000	2080	2970	DN50	/	/
	8.6	4.4 – 8.4
	10.4	3.8-7.3
OFW75VSD	7.5	7-14				2100	2975
	8.6	6.6-13.4
	10.4	5.8-12.1
OFW90VSD	7.5	7.5-15.9				2150	2975
	8.6	7.5-15.7
	10.4	7-14.1
OFA110VSD	7.5	8.7-18.4	2600	1650	2300	3750	2980	DN80	11	30000
	8.6	8.1-17.2
	10	7.5-16
OFA132VSD	7.5	10.6-21.8				3850	2980
	8.6	9.3-19.5
	10	9.2-19
OFA145VSD	7.5	10-23.2				3950	2980
	8.6	10-21.5
	10	9.5-19.9
OFA160VSD	7.5	12-27.9				4050	2980
	8.6	12-25.7
	10	11-23.8
OFW110VSD	7.5	9-19.1	2600	1650	1800	2700	2980	DN80	/	/
	8.6	8.3-17.1
	10	7.5-16
OFW132VSD	7.5	11~23				2840	2980
	8.6	10-22.6
	10	10-20.4
OFW145VSD	7.5	10-23.5				2980	2980
	8.6	10-21.7
	10	10-20.1
OFW160VSD	7.5	12~26				3571	2980
	8.6	12-25.1
	10	11-23.2
OFA200VSD	7.5	16-34.1	3100	1650	2400	5600	1490	DN80	15	40000
	8.6	15-31.3
	10	15-30
OFA250VSD	7.5	21-42.4				5800	1490
	8.6	20-40.4
	10	18-36.8
OFA275VSD	7.5	22-44.3				5850	1490		18.5	50000
	8.6	21-42.4
	10	20-40.4
OFA315VSD	7.5	17.1-51.4
	8.6	15.8-47.6
	10	15.3-46

After-sales Service:	Online Support
Warranty:	12 Months
Lubrication Style:	Oil-free
Cooling System:	Water Cooling
Power Source:	AC Power
Cylinder Position:	Horizontal

Customization:	Available \|

air compressor

Can air compressors be used for shipbuilding and maritime applications?

Air compressors are widely used in shipbuilding and maritime applications for a variety of tasks and operations. The maritime industry relies on compressed air for numerous essential functions. Here’s an overview of how air compressors are employed in shipbuilding and maritime applications:

1. Pneumatic Tools and Equipment:

Air compressors are extensively used to power pneumatic tools and equipment in shipbuilding and maritime operations. Pneumatic tools such as impact wrenches, drills, grinders, sanders, and chipping hammers require compressed air to function. The versatility and power provided by compressed air make it an ideal energy source for heavy-duty tasks, maintenance, and construction activities in shipyards and onboard vessels.

2. Painting and Surface Preparation:

Air compressors play a crucial role in painting and surface preparation during shipbuilding and maintenance. Compressed air is used to power air spray guns, sandblasting equipment, and other surface preparation tools. Compressed air provides the force necessary for efficient and uniform application of paints, coatings, and protective finishes, ensuring the durability and aesthetics of ship surfaces.

3. Pneumatic Actuation and Controls:

Air compressors are employed in pneumatic actuation and control systems onboard ships. Compressed air is used to operate pneumatic valves, actuators, and control devices that regulate the flow of fluids, control propulsion systems, and manage various shipboard processes. Pneumatic control systems offer reliability and safety advantages in maritime applications.

4. Air Start Systems:

In large marine engines, air compressors are used in air start systems. Compressed air is utilized to initiate the combustion process in the engine cylinders. The compressed air is injected into the cylinders to turn the engine’s crankshaft, enabling the ignition of fuel and starting the engine. Air start systems are commonly found in ship propulsion systems and power generation plants onboard vessels.

5. Pneumatic Conveying and Material Handling:

In shipbuilding and maritime operations, compressed air is used for pneumatic conveying and material handling. Compressed air is utilized to transport bulk materials, such as cement, sand, and grain, through pipelines or hoses. Pneumatic conveying systems enable efficient and controlled transfer of materials, facilitating construction, cargo loading, and unloading processes.

6. Air Conditioning and Ventilation:

Air compressors are involved in air conditioning and ventilation systems onboard ships. Compressed air powers air conditioning units, ventilation fans, and blowers, ensuring proper air circulation, cooling, and temperature control in various ship compartments, cabins, and machinery spaces. Compressed air-driven systems contribute to the comfort, safety, and operational efficiency of maritime environments.

These are just a few examples of how air compressors are utilized in shipbuilding and maritime applications. Compressed air’s versatility, reliability, and convenience make it an indispensable energy source for various tasks and systems in the maritime industry.

air compressor

How do you maintain proper air quality in compressed air systems?

Maintaining proper air quality in compressed air systems is essential to ensure the reliability and performance of pneumatic equipment and the safety of downstream processes. Here are some key steps to maintain air quality:

1. Air Filtration:

Install appropriate air filters in the compressed air system to remove contaminants such as dust, dirt, oil, and water. Filters are typically placed at various points in the system, including the compressor intake, aftercoolers, and before point-of-use applications. Regularly inspect and replace filters to ensure their effectiveness.

2. Moisture Control:

Excessive moisture in compressed air can cause corrosion, equipment malfunction, and compromised product quality. Use moisture separators or dryers to remove moisture from the compressed air. Refrigerated dryers, desiccant dryers, or membrane dryers are commonly employed to achieve the desired level of dryness.

3. Oil Removal:

If the compressed air system utilizes oil-lubricated compressors, it is essential to incorporate proper oil removal mechanisms. This can include coalescing filters or adsorption filters to remove oil aerosols and vapors from the air. Oil-free compressors eliminate the need for oil removal.

4. Regular Maintenance:

Perform routine maintenance on the compressed air system, including inspections, cleaning, and servicing of equipment. This helps identify and address any potential issues that may affect air quality, such as leaks, clogged filters, or malfunctioning dryers.

5. Air Receiver Tank Maintenance:

Regularly drain and clean the air receiver tank to remove accumulated contaminants, including water and debris. Proper maintenance of the tank helps prevent contamination from being introduced into the compressed air system.

6. Air Quality Testing:

Periodically test the quality of the compressed air using appropriate instruments and methods. This can include measuring particle concentration, oil content, dew point, and microbial contamination. Air quality testing provides valuable information about the effectiveness of the filtration and drying processes and helps ensure compliance with industry standards.

7. Education and Training:

Educate personnel working with compressed air systems about the importance of air quality and the proper procedures for maintaining it. Provide training on the use and maintenance of filtration and drying equipment, as well as awareness of potential contaminants and their impact on downstream processes.

8. Documentation and Record-Keeping:

Maintain accurate records of maintenance activities, including filter replacements, drying system performance, and air quality test results. Documentation helps track the system’s performance over time and provides a reference for troubleshooting or compliance purposes.

By implementing these practices, compressed air systems can maintain proper air quality, minimize equipment damage, and ensure the integrity of processes that rely on compressed air.

air compressor

What are the different types of air compressors?

There are several different types of air compressors, each with its own unique design and operating principle. Here’s an overview of the most commonly used types:

1. Reciprocating Air Compressors: Reciprocating air compressors, also known as piston compressors, use one or more pistons driven by a crankshaft to compress air. They operate by drawing air into a cylinder, compressing it with the piston’s up-and-down motion, and discharging the compressed air into a storage tank. Reciprocating compressors are known for their high pressure capabilities and are commonly used in industrial applications.

2. Rotary Screw Air Compressors: Rotary screw air compressors utilize two interlocking screws to compress air. As the male and female screws rotate, the air is trapped between them and gradually compressed as it moves along the screw threads. These compressors are known for their continuous duty cycle, high efficiency, and quiet operation. They are widely used in industrial, commercial, and automotive applications.

3. Centrifugal Air Compressors: Centrifugal air compressors rely on the principle of centrifugal force to compress air. They use a high-speed impeller to accelerate the incoming air and then convert the kinetic energy into pressure energy. Centrifugal compressors are commonly used in large-scale industrial applications that require high volumes of compressed air.

4. Rotary Vane Air Compressors: Rotary vane air compressors employ a rotor with sliding vanes that compress the air. As the rotor rotates, the vanes slide in and out of the rotor, creating compression chambers. Air is drawn in, trapped, and compressed as the vanes move. These compressors are compact, reliable, and suitable for small to medium-sized applications.

5. Axial Flow Air Compressors: Axial flow air compressors are primarily used in specialized applications such as aircraft engines and gas turbines. They utilize a series of rotating and stationary blades to compress air in a continuous flow. Axial flow compressors are known for their high flow rates and are designed for applications that require large volumes of compressed air.

6. Scroll Air Compressors: Scroll air compressors consist of two interlocking spirals or scrolls that compress the air. One spiral remains stationary while the other orbits around it, creating a series of expanding and contracting pockets that compress the air. Scroll compressors are compact, reliable, and commonly used in applications where low noise and oil-free air are required, such as medical and dental equipment.

These are just a few examples of the different types of air compressors available. Each type has its own advantages, capabilities, and ideal applications. The choice of air compressor depends on factors such as required pressure, flow rate, duty cycle, noise level, oil-free operation, and specific application requirements.

China Hot selling Oil Free Rotary Screw Industrial Two Stage Air Compressor Napu Ofw75VSD with Best Sales
editor by CX 2023-10-16

China supplier Water Treatment Oil Free Rotary Screw Air Compressor air compressor parts

Product Description

Water Treatment Oil Free Rotary Screw Air Compressor Advantages:

1.Clean air 100% oil-free

2.Use water instead of oil, higher cooling efficiency and compression efficiency

3.Optimal isothermal compression

4.Powerful MAM microcomputer controller and touch screen

5.Reasonable Structure, with perfect balancing

6.Components made of anti-rust and anti-corrosion materials ensure the durability

7.Significant energy saving, environmental-friendly and pollution-free

8.Designed especially for medical, pharmacy, instrument, coating, chemical industry and food processing, etc.

Technical Parameters Of Water Treatment Oil Free Rotary Screw Air Compressor :

Model	Maximum working pressure		Capacity FAD		Installed motor power		Noise	Dimensions (mm)	Weight	Air outlet pipe diameter
Model	bar(e)	psig	m³/min	cfm	kW	hp	dB(A)	*LWH*	kg	Air outlet pipe diameter
DAW-7A	8	116	1.24	43.8	7.5	10	58	15507751445	630	3/4″
DAW-7A	10	145	1.1	38.8	7.5	10	58	15507751445	630	3/4″
DAW-11A	8	116	1.67	59	11	15	58	15507751445	650	3/4″
	10	145	1.43	50.5	11	15
	12.5	181	1.1	38.8	11	15
DAW-15A	8	116	2.27	80.2	15	20	63	140010001200	900	1″
	10	145	2.05	72.4	15	20
	12.5	181	1.51	53.3	15	20
DAW-18A	8	116	3.01	106.3	18.5	25	65	140010001200	970	1″
	10	145	2.65	93.6	18.5	25
	12.5	181	2.07	73.1	18.5	25
DAW-22A	8	116	3.46	122.2	22	30	65	140010001200	1000	1″
	10	145	3.08	108.8	22	30
	12.5	181	2.59	91.5	22	30
DAW-30A	8	116	5.4	190.7	30	40	66	185011501300	1250	1-1/2″
	10	145	4.54	160.3	30	40
	12.5	181	4.11	145.1	30	40
DAW-37A	8	116	6.26	221	37	50	67	185011501300	1297	1-1/2″
	10	145	5.51	194.6	37	50
	12.5	181	5.19	183.3	37	50
DAW-45A/W	8	116	7.56	266.9	45	60	68	185011501300	1500	2″
	10	145	6.59	232.7	45	60
	12.5	181	5.94	209.7	45	60
DAW-55A/W	8	116	9.61	339.3	55	75	70	190015001700	1596	2″
	10	145	8.75	309	55	75
	12.5	181	7.54	266.2	55	75
DAW-75A/W	8	116	12.42	438.6	75	100	73	190015001700	1790	2″
	10	145	11.34	400.4	75	100
	12.5	181	9.83	347.1	75	100
DAW-90A/W	8	116	16.19	571.7	90	120	73	190015001700	2250	2-1/2″
	10	145	14.42	509.2	90	120
	12.5	181	12.23	431.8	90	120
DAW-110W	8	116	19.28	680.8	110	150	78	215016001800	2270	2-1/2″
	10	145	16.74	591.1	110	150
	12.5	181	15	529.7	110	150
DAW-132W	8	116	22.06	778.9	132	175	78	215016001800	2330	2-1/2″
	10	145	20.25	715	132	175
	12.5	181	18.14	640.5	132	175
DAW-160W	8	116	28.66	1012	160	215	78	215016001800	3660	3″
	10	145	24.36	860.2	160	215
	12.5	181	22.03	777.9	160	215
DAW-200W	8	116	36.39	1284.9	200	270	78	310017002090	3690	4″
	10	145	29.81	1052.6	200	270
	12.5	181	27.43	968.6	200	270
DAW-250W	8	116	42.6	1504.2	250	350	79	310017002090	3900	4″
	10	145	38.75	1368.3	250	350
	12.5	181	34.43	1215.7	250	350

DENAIR Factory:

At DENAIR, we earn our customers’ trust and satisfaction by manufacturing the superior quality compressed air products for all industries. All of our products are designed for reliable performance, easy maintenance, and maximum energy efficiency. CHINAMFG has been exporting to more than 90 countries across the globe. We have sales representatives who can speak English, Spanish, French, Russian and Arabic, which makes it easier for our clients from all over the world to interact and negotiate with us.

DENAIR Exhibitions:

DENAIR Global Customers:

Water-lubricated Oil-free Screw Air Compressor Packaging:

FAQ:

Q1: Are you factory or trade company?
A1: We are factory.

Q2: What the exactly address of your factory?
A2: Our company is located in No. 6767, Tingfeng Rd. Xihu (West Lake) Dis.n District, ZheJiang 201502, China
And our factory is located in No. 366, YangzhuangBang Street, Pingxing Rd., Xindai Town,HangZhou, ZHangZhoug Province, China

Q3: Warranty terms of your machine?
A3: One year warranty for the machine and technical support according to your needs.

Q4: Will you provide some spare parts of the machines?
A4: Yes, of course.

Q5: How long will you take to arrange production?
A5: 380V 50HZ we can delivery the goods within 10 days. Other electricity or other color we will delivery within 22 days

Q6: Can you accept OEM orders?
A6: Yes, with professional design team, OEM orders are highly welcome.

Lubrication Style:	Oil-free
Power Source:	Diesel Engine
Cylinder Position:	Vertical
Structure Type:	Closed Type
Installation Type:	Stationary Type
Type:	Twin-Screw Compressor

Customization:	Available \|

air compressor

What are the advantages of using an air compressor in construction?

Using an air compressor in construction offers numerous advantages that contribute to increased efficiency, productivity, and versatility. Here are some key benefits of using air compressors in construction:

Powering Pneumatic Tools: Air compressors are commonly used to power a wide range of pneumatic tools on construction sites. Tools such as jackhammers, nail guns, impact wrenches, drills, and sanders can be operated using compressed air. Pneumatic tools are often preferred due to their lightweight, compact design and ability to deliver high torque or impact force.
Efficient Operation: Air compressors provide a continuous and reliable source of power for pneumatic tools, allowing for uninterrupted operation without the need for frequent battery changes or recharging. This helps to maintain a smooth workflow and reduces downtime.
Portability: Many construction air compressors are designed to be portable, featuring wheels or handles for easy maneuverability on job sites. Portable air compressors can be transported to different areas of the construction site as needed, providing power wherever it is required.
Versatility: Air compressors are versatile tools that can be used for various applications in construction. Apart from powering pneumatic tools, they can also be utilized for tasks such as inflating tires, cleaning debris, operating air-operated pumps, and powering air horns.
Increased Productivity: The efficient operation and power output of air compressors enable construction workers to complete tasks more quickly and effectively. Pneumatic tools powered by air compressors often offer higher performance and faster operation compared to their electric or manual counterparts.
Cost Savings: Air compressors can contribute to cost savings in construction projects. Pneumatic tools powered by air compressors are generally more durable and have longer lifespans compared to electric tools. Additionally, since air compressors use compressed air as their power source, they do not require the purchase or disposal of batteries or fuel, reducing ongoing operational expenses.
Reduced Electrocution Risk: Construction sites can be hazardous environments, with the risk of electrocution from electrical tools or equipment. By utilizing air compressors and pneumatic tools, the reliance on electrical power is minimized, reducing the risk of electrocution accidents.

It is important to select the appropriate air compressor for construction applications based on factors such as required air pressure, volume, portability, and durability. Regular maintenance, including proper lubrication and cleaning, is crucial to ensure the optimal performance and longevity of air compressors in construction settings.

In summary, the advantages of using air compressors in construction include powering pneumatic tools, efficient operation, portability, versatility, increased productivity, cost savings, and reduced electrocution risk, making them valuable assets on construction sites.

air compressor

How are air compressors employed in the mining industry?

Air compressors play a crucial role in the mining industry, providing reliable and efficient power for various mining operations. Here are some common applications of air compressors in mining:

1. Exploration and Drilling:

Air compressors are used during exploration and drilling activities in the mining industry. Compressed air is used to power drilling rigs, pneumatic hammers, and other drilling equipment. The high-pressure air generated by the compressor helps in drilling boreholes, extracting core samples, and exploring potential mineral deposits.

2. Ventilation and Air Quality Control:

Air compressors are employed in underground mining to provide ventilation and control air quality. Compressed air is used to operate ventilation fans and air circulation systems, ensuring adequate airflow and removing harmful gases, dust, and fumes from the mining tunnels and work areas.

3. Material Conveyance:

In mining operations, air compressors are used for material conveyance. Pneumatic systems powered by air compressors are utilized to transport materials such as coal, ore, and other minerals. Compressed air is used to operate pneumatic conveyors, pumps, and material handling equipment, allowing for efficient and controlled movement of bulk materials.

4. Dust Suppression:

Air compressors are employed for dust suppression in mining areas. Compressed air is used to spray water or other suppressants to control dust generated during mining activities. This helps in maintaining a safe and healthy work environment, reducing the risks associated with dust inhalation and improving visibility.

5. Instrumentation and Control:

Air compressors are used for instrumentation and control purposes in mining operations. Compressed air is utilized to power pneumatic control systems, control valves, and actuators. These systems regulate the flow of fluids, control equipment movements, and ensure the proper functioning of various mining processes.

6. Explosive Applications:

In mining, air compressors are used for explosive applications. Compressed air is employed to power pneumatic tools used for rock fragmentation, such as rock drills and pneumatic breakers. The controlled power of compressed air enables safe and efficient rock breaking without the need for traditional explosives.

7. Maintenance and Repair:

Air compressors are essential for maintenance and repair activities in the mining industry. Compressed air is used for cleaning machinery, removing debris, and powering pneumatic tools for equipment maintenance and repair tasks. The versatility and portability of air compressors make them valuable assets in maintaining mining equipment.

It is important to note that different mining operations may have specific requirements and considerations when selecting and using air compressors. The size, capacity, and features of air compressors can vary based on the specific mining application and environmental conditions.

By utilizing air compressors effectively, the mining industry can benefit from increased productivity, improved safety, and efficient operation of various mining processes.

air compressor

What are the safety considerations when operating an air compressor?

Operating an air compressor requires careful attention to safety to prevent accidents, injuries, and equipment damage. Here are some important safety considerations to keep in mind:

1. Read the Manual: Before operating an air compressor, thoroughly read and understand the manufacturer’s instruction manual. Familiarize yourself with the specific safety guidelines, recommended operating procedures, and any specific precautions or warnings provided by the manufacturer.

2. Proper Ventilation: Ensure that the area where the air compressor is operated has adequate ventilation. Compressed air can produce high levels of heat and exhaust gases. Good ventilation helps dissipate heat, prevent the buildup of fumes, and maintain a safe working environment.

3. Personal Protective Equipment (PPE): Always wear appropriate personal protective equipment, including safety glasses or goggles, hearing protection, and non-slip footwear. Depending on the task, additional PPE such as gloves, a dust mask, or a face shield may be necessary to protect against specific hazards.

4. Pressure Relief: Air compressors should be equipped with pressure relief valves or devices to prevent overpressurization. Ensure that these safety features are in place and functioning correctly. Regularly inspect and test the pressure relief mechanism to ensure its effectiveness.

5. Secure Connections: Use proper fittings, hoses, and couplings to ensure secure connections between the air compressor, air tools, and accessories. Inspect all connections before operation to avoid leaks or sudden hose disconnections, which can cause injuries or damage.

6. Inspect and Maintain: Regularly inspect the air compressor for any signs of damage, wear, or leaks. Ensure that all components, including hoses, fittings, and safety devices, are in good working condition. Follow the manufacturer’s recommended maintenance schedule to keep the compressor in optimal shape.

7. Electrical Safety: If the air compressor is electric-powered, take appropriate electrical safety precautions. Use grounded outlets and avoid using extension cords unless approved for the compressor’s power requirements. Protect electrical connections from moisture and avoid operating the compressor in wet or damp environments.

8. Safe Start-Up and Shut-Down: Properly start and shut down the air compressor following the manufacturer’s instructions. Ensure that all air valves are closed before starting the compressor and release all pressure before performing maintenance or repairs.

9. Training and Competence: Ensure that operators are adequately trained and competent in using the air compressor and associated tools. Provide training on safe operating procedures, hazard identification, and emergency response protocols.

10. Emergency Preparedness: Have a clear understanding of emergency procedures and how to respond to potential accidents or malfunctions. Know the location of emergency shut-off valves, fire extinguishers, and first aid kits.

By adhering to these safety considerations and implementing proper safety practices, the risk of accidents and injuries associated with operating an air compressor can be significantly reduced. Prioritizing safety promotes a secure and productive working environment.

China supplier Water Treatment Oil Free Rotary Screw Air Compressor air compressor parts
editor by CX 2023-10-12

China Professional Cheap Price Single Phase 10 HP 7.5kw CHINAMFG Compresor De Aire Industrial Rotary Screw Air Compressor 220V supplier

Product Description

Cheap Price Single Phase 10 HP 7.5KW CHINAMFG Compresor De Aire Industrial Rotary Screw Air Compressor 220V

Product Name :	Cheap Price Single Phase 10 HP 7.5KW CHINAMFG Compresor De Aire Industrial Rotary Screw Air Compressor 220V
Type:	Oil Injected Permanent Magnetic Variable Speed Rotary Screw Air Compressor
Voltage:	380V/50HZ/3P, 220V/60HZ/3P, 400V/50HZ/3P, 415V/50HZ/3P or Customer′s Requirements
Working Pressure:	low pressure: 6bar, 7 bar, 8bar, 10 bar, 12bar, 13bar;
Motor Power:	7.5KW, 11 Kw, 15KW, 18.5KW, 22KW, 30KW, 37KW, 45KW to 250KW
Horse Power:	10HP, 15 HP, 20HP, 25HP, 30HP to 350HP
Driven Method:	Direct Driven
Air End:	Hanbell brand air end
Trademark:	Lingyu
Transport Package:	Standard Wooden Packing
Available Certificate:	CE, ISO, SGS
Origin:	ZheJiang , China
Application:	Many industrial: Packing,Painting,Precision Electroplating,Peparing

Q: Are you a factory or a trading company?
A: We are factory. And we have ourselves trading company.

Q: What is the specific address of your company?
A: No.3, 2nd Street, yuanle Road, Xihu (West Lake) Dis.sheng Town, HangZhou City, ZheJiang Province, China

Q: Do your company accept ODM & OEM?
A: Yes, of course. We accept full ODM & OEM.

Q: What about the voltage of products? Can they be customized?
A: Yes, of course. The voltage can be customized according to your requirement.

Q: Do your company offer spare parts of the machines?
A: Yes, of course, high quality spare parts are available in our factory.

Q: What are your payment terms?
A: 50% T/T in advance, 50% T/T before delivery.

Q: What payment ways do you accept?
A: T/T, Western Union

Q: How long will you take to arrange the goods?
A: For normal voltages,we can delivery the goods within 7-15 days. For other electricity or other customized machines, we
will delivery within 25-30 days.

Cheap Price Single Phase 10 HP 7.5KW CHINAMFG Compresor De Aire Industrial Rotary Screw Air Compressor 220V

After-sales Service:	Video Support
Warranty:	2 Year Warranty
Lubrication Style:	Lubricated
Cooling System:	Air Cooling
Power Source:	AC Power
Structure Type:	Closed Type

Samples:	US$ 2499/Piece 1 Piece(Min.Order) \| Request Sample

Customization:	Available \|

air compressor

What role do air dryers play in compressed air systems?

Air dryers play a crucial role in compressed air systems by removing moisture and contaminants from the compressed air. Compressed air, when generated, contains water vapor from the ambient air, which can condense and cause issues in the system and end-use applications. Here’s an overview of the role air dryers play in compressed air systems:

1. Moisture Removal:

Air dryers are primarily responsible for removing moisture from the compressed air. Moisture in compressed air can lead to problems such as corrosion in the system, damage to pneumatic tools and equipment, and compromised product quality in manufacturing processes. Air dryers utilize various techniques, such as refrigeration, adsorption, or membrane separation, to reduce the dew point of the compressed air and eliminate moisture.

2. Contaminant Removal:

In addition to moisture, compressed air can also contain contaminants like oil, dirt, and particles. Air dryers help in removing these contaminants to ensure clean and high-quality compressed air. Depending on the type of air dryer, additional filtration mechanisms may be incorporated to enhance the removal of oil, particulates, and other impurities from the compressed air stream.

3. Protection of Equipment and Processes:

By removing moisture and contaminants, air dryers help protect the downstream equipment and processes that rely on compressed air. Moisture and contaminants can negatively impact the performance, reliability, and lifespan of pneumatic tools, machinery, and instrumentation. Air dryers ensure that the compressed air supplied to these components is clean, dry, and free from harmful substances, minimizing the risk of damage and operational issues.

4. Improved Productivity and Efficiency:

Utilizing air dryers in compressed air systems can lead to improved productivity and efficiency. Dry and clean compressed air reduces the likelihood of equipment failures, downtime, and maintenance requirements. It also prevents issues such as clogging of air lines, malfunctioning of pneumatic components, and inconsistent performance of processes. By maintaining the quality of compressed air, air dryers contribute to uninterrupted operations, optimized productivity, and cost savings.

5. Compliance with Standards and Specifications:

Many industries and applications have specific standards and specifications for the quality of compressed air. Air dryers play a vital role in meeting these requirements by ensuring that the compressed air meets the desired quality standards. This is particularly important in industries such as food and beverage, pharmaceuticals, electronics, and automotive, where clean and dry compressed air is essential for product integrity, safety, and regulatory compliance.

By incorporating air dryers into compressed air systems, users can effectively control moisture and contaminants, protect equipment and processes, enhance productivity, and meet the necessary quality standards for their specific applications.

air compressor

Are there differences between single-stage and two-stage air compressors?

Yes, there are differences between single-stage and two-stage air compressors. Here’s an in-depth explanation of their distinctions:

Compression Stages:

The primary difference between single-stage and two-stage air compressors lies in the number of compression stages they have. A single-stage compressor has only one compression stage, while a two-stage compressor has two sequential compression stages.

Compression Process:

In a single-stage compressor, the entire compression process occurs in a single cylinder. The air is drawn into the cylinder, compressed in a single stroke, and then discharged. On the other hand, a two-stage compressor utilizes two cylinders or chambers. In the first stage, air is compressed to an intermediate pressure in the first cylinder. Then, the partially compressed air is sent to the second cylinder where it undergoes further compression to reach the desired final pressure.

Pressure Output:

The number of compression stages directly affects the pressure output of the air compressor. Single-stage compressors typically provide lower maximum pressure levels compared to two-stage compressors. Single-stage compressors are suitable for applications that require moderate to low air pressure, while two-stage compressors are capable of delivering higher pressures, making them suitable for demanding applications that require greater air pressure.

Efficiency:

Two-stage compressors generally offer higher efficiency compared to single-stage compressors. The two-stage compression process allows for better heat dissipation between stages, reducing the chances of overheating and improving overall efficiency. Additionally, the two-stage design allows the compressor to achieve higher compression ratios while minimizing the work done by each stage, resulting in improved energy efficiency.

Intercooling:

Intercooling is a feature specific to two-stage compressors. Intercoolers are heat exchangers placed between the first and second compression stages. They cool down the partially compressed air before it enters the second stage, reducing the temperature and improving compression efficiency. The intercooling process helps to minimize heat buildup and reduces the potential for moisture condensation within the compressor system.

Applications:

The choice between a single-stage and two-stage compressor depends on the intended application. Single-stage compressors are commonly used for light-duty applications such as powering pneumatic tools, small-scale workshops, and DIY projects. Two-stage compressors are more suitable for heavy-duty applications that require higher pressures, such as industrial manufacturing, automotive service, and large-scale construction.

It is important to consider the specific requirements of the application, including required pressure levels, duty cycle, and anticipated air demand, when selecting between a single-stage and two-stage air compressor.

In summary, the main differences between single-stage and two-stage air compressors lie in the number of compression stages, pressure output, efficiency, intercooling capability, and application suitability.

air compressor

What maintenance is required for air compressors?

Maintaining air compressors is essential to ensure their optimal performance, longevity, and safe operation. Regular maintenance helps prevent breakdowns, improves efficiency, and reduces the risk of accidents. Here are some key maintenance tasks for air compressors:

1. Regular Inspection: Perform visual inspections of the air compressor to identify any signs of wear, damage, or leaks. Inspect the compressor, hoses, fittings, and connections for any abnormalities. Pay attention to oil leaks, loose bolts, and worn-out components.

2. Oil Changes: If your air compressor has an oil lubrication system, regular oil changes are crucial. Follow the manufacturer’s recommendations for the frequency of oil changes and use the recommended oil type. Dirty or degraded oil can impact compressor performance and lead to premature wear.

3. Air Filter Cleaning or Replacement: Clean or replace the air filter regularly to ensure proper air intake and prevent contaminants from entering the compressor. Clogged or dirty filters can restrict airflow and reduce efficiency.

4. Drain Moisture: Air compressors produce moisture as a byproduct of the compression process. Accumulated moisture in the tank can lead to rust and corrosion. Drain the moisture regularly from the tank to prevent damage. Some compressors have automatic drains, while others require manual draining.

5. Belt Inspection and Adjustment: If your compressor has a belt-driven system, inspect the belts for signs of wear, cracks, or tension issues. Adjust or replace the belts as necessary to maintain proper tension and power transmission.

6. Tank Inspection: Inspect the compressor tank for any signs of corrosion, dents, or structural issues. A damaged tank can be hazardous and should be repaired or replaced promptly.

7. Valve Maintenance: Check the safety valves, pressure relief valves, and other valves regularly to ensure they are functioning correctly. Test the valves periodically to verify their proper operation.

8. Motor and Electrical Components: Inspect the motor and electrical components for any signs of damage or overheating. Check electrical connections for tightness and ensure proper grounding.

9. Keep the Area Clean: Maintain a clean and debris-free area around the compressor. Remove any dirt, dust, or obstructions that can hinder the compressor’s performance or cause overheating.

10. Follow Manufacturer’s Guidelines: Always refer to the manufacturer’s manual for specific maintenance instructions and recommended service intervals for your air compressor model. They provide valuable information on maintenance tasks, lubrication requirements, and safety precautions.

Regular maintenance is vital to keep your air compressor in optimal condition and extend its lifespan. It’s also important to note that maintenance requirements may vary depending on the type, size, and usage of the compressor. By following a comprehensive maintenance routine, you can ensure the reliable operation of your air compressor and maximize its efficiency and longevity.

China Professional Cheap Price Single Phase 10 HP 7.5kw CHINAMFG Compresor De Aire Industrial Rotary Screw Air Compressor 220V supplier
editor by CX 2023-10-01

China Best Sales Water Lubricated Oil Free 22kw Dry Scroll Rotary Screw Air Compressor Environmental Friendly Industrial Pollution-Free Medical with Great quality

Product Description

Product name

Oil Free Water Lubricated Screw Air Compressor

Model

WLS

Cooling Method

Air Cooling

Pressure

8/1013 bar

Power

5.5-250 kw

Capacity

0.3~33.97 m3/min

Voltage

380V/50HZ, 220V/60HZ, 400V/50HZ, 415V/50HZ or Customer′s Requirements

Color

Customized

_Advantage

Model	Pressure (mpa)	Displacement (m³/min)	Power (kw)	Noise (db)	Water Inlet Diameter	Lubricating Water (L)	Air Outlet
WLS-0.8/5.5	0.8	0.3-0.78	5.5	57	3/4″	10	3/4″
WLS-1.0/5.5	1.0	0.2-0.65
WLS-0.8/7.5	0.8	0.35-0.17	7.5	57	3/4″	10	3/4″
WLS-1.0/7.5	1.0	0.3-1.05
WLS-1.25/7.5	1.25	0.24-0.81
WLS-0.8/11	0.8	0.54-1.72	11	60	1″	26	3/4″
WLS-1.0/11	1	0.45-1.42
WLS-1.25/11	1.3	0.35-1.10
WLS-0.8/15	0.8	0.75-2.43	15	60	1″	26	1″
WLS-1.0/15	1.0	0.65-2.17
WLS-1.25/15	1.25	0.6-1.80
WLS-0.8/18.5	0.8	0.9-3.31	18.5	63	1″	30	1″
WLS-1.0/18.5	1	0.9-2.82
WLS-1.25/18.5	1.3	0.6-2.05
WLS-0.8/22	0.8	1.1-3.7	22	63	1″	30	1″
WLS-1.0/22	1.0	0.97-3.21
WLS-1.25/22	1.25	0.85-2.87
WLS-0.8/30	0.8	1.55-5.2	30	63	1 1/2″	40	1 1/2″
WLS-1.0/30	1	1.255-4.43
WLS-1.25/30	1.3	1.1-3.63
WLS-0.8/37	0.8	1.91-6.50	37	66	1 1/2″	40	1 1/2″
WLS-1.0/37	1.0	1.6-5.53
WLS-1.25/37	1.25	1.42-4.47
WLS-0.8/45	0.8	2.5-8.3	45	66	1 1/2″	90	2″
WLS-1.0/45	1	1.91-6.3
WLS-1.25/45	1.3	1.7-5.56
WLS-0.8/55	0.8	3.0-10.3	55	69	1 1/2″	100	2″
WLS-1.0/55	1.0	2.6-8.55
WLS-1.25/55	1.25	2.3-7.67
WLS-0.8/75	0.8	3.95-13	75	72	1 1/2″	100	2″
WLS-1.0/75	1	3.4-11.5
WLS-1.25/75	1.3	3.0-9.7
WLS-0.8/90	0.8	5.0-16.6	90	73	1 1/2″	120	2 1/2″
WLS-1.0/90	1.0	4.3-14.66
WLS-1.25/90	1.25	3.72-12.6
WLS-0.8/110	0.8	6.0-20.2	110	77	2″	120	2 1/2″
WLS-1.0/110	1	5.0-16.66
WLS-1.25/110	1.3	4.65-15.56
WLS-0.8/132	0.8	6.75-22.52	132	77	2″	120	2 1/2″
WLS-1.0/132	1.0	6.0-19.97
WLS-1.25/132	1.25	5.07-16.90
WLS-0.8/160	0.8	8.5-28.11	160	79	3″	160	3″
WLS-1.0/160	1	7.6-25.45
WLS-1.25/160	1.3	6.7-22.52
WLS-0.8/185	0.8	10-33.97	185	79	3″	160	3″
WLS-1.0/185	1.0	8.72-29
WLS-1.25/185	1.25	7.75-25.21
WLS-0.8/200	0.8	11.2-36.75	200	80	4″	200	4″
WLS-1.0/200	1	9.68-32.78
WLS-1.25/200	1.3	9.2-29.24
WLS-0.8/250	0.8	13.5-45	250	80	4″	200	4″
WLS-1.25/250	1.3	10.2-33.97

ZheJiang CZPT Gas Compressor Manufacturing Co.,Ltd. founded in 2005, is a leading high technology of machine and equipment manufacturer integrating the design, R&D, production, sales and service for air compressors & Mining Equipment. Adopting advanced technology, design concept and quality control, and we are able to provide customized products to meet customers’ OEM needs.
Our company has more than 520 employees, including 86 senior technicians and professional engineers. Our technical team provides our customers with professional air system solutions. With the total 15000 square meters of the facility, 4 modern advanced production lines are built up to ensure production capacity to meet customer requirements.
Our company has been awarded the honorary title of “ZheJiang high-tech enterprise” and our products enjoy high honors in the industry. Our company has the ISO9001 certification and was awarded the qualification certificate of equipment through military contracts in 2018.
We offer the following products and services:
1. Screw air compressor
    1.1 Oil-free screw air compressor
    1.2 Oil-injected air compressor
2. Reciprocating piston air compressor
    2.1 Piston air compressor
    2.2 Oil-free piston air compressor
    2.3 Piston medium & high-pressure air compressor
3.Portable air compressor & Mining Equipment
    3.1 Diesel or Electric portable screw air compressor
    3.2 Air Pick, Rock Drill, DTH Drilling Rig, Crawler Drilling Rig
4. Air compressor accessories
    4.1 CZPT or Adsorption compressed air drier
    4.2 Compressed air filter or tank
4.3 Lubrication oil
We have a complete system of after-sales service and quality assurance. The company’s material purchase, inspection, manufacturing, installation, and testing are strictly in accordance with the ISO procedures. which will ensure each compressor has reliable quality and has a complete record to trace, if needed.

Q: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.

Q: How can we start order with your factory?
A: First, leave us an inquiry and advise which item you’re interested, and then we will contact you in 24 hours. You’re so kind if provide all detailed information, will better for us to know exactly what you need.

Q: What are your MOQ?
A: Different products have different MOQ, most is 1 set.

Q: What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages.

Q: How about your delivery time?
A: Generally, it will take 90 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q: Do you a trade company or real factory?
A: We are 100% factory; we located in ZheJiang city, China.

After-sales Service:	Online Support
Warranty:	Unit 1 Year, Air End 2 Years
Lubrication Style:	Oil-free
Cooling System:	Water Cooling
Power Source:	AC Power
Structure Type:	Closed Type

Customization:	Available \|

air-compressor

What to Look For When Buying an Air Compressor

An air compressor is a very useful tool that can help you complete many different types of construction jobs. This handy machine makes many tasks much easier, but not all of them are created equally. Understanding what to look for when buying an air compressor will help you make an informed decision. Here are some of the things you should look for. These include price, size, and energy efficiency. Also, make sure to consider the air compressor’s type.

Single-stage air compressors are quieter

When it comes to noise level, single-stage air compressors are the way to go. These machines have fewer moving parts and are quieter than two-stage models. Single-stage air compressors use an axial flow design and can be quieter than their dual-stage counterparts. Single-stage air compressors can run longer and at lower pressures. Single-stage air compressors can be used for light industrial applications. They have a long life expectancy, with some models lasting for over three thousand hours.
While some single-stage air compressors are quieter than two-stage air compressors, both models have noise-reduction features. One type features rubber parts, which are designed to dampen noise. Another feature makes a compressor quieter: its location near the job site. Some models feature rubber base plugs and rubber mats to reduce floor vibrations. In addition to using these features, single-stage compressors are easier to transport.
Noise levels are important when choosing an air compressor. Some machines are too noisy for comfortable work, and some businesses don’t want to expose customers to noise-generating air compressors. Other noise levels can even endanger workers’ health. Single-stage air compressors are more affordable than dual-stage compressors. They are also quieter and more powerful. But be prepared for the noise. Some single-stage air compressors are still noisy.
Compared to their two-stage counterparts, single-stage compressors are quieter when running at full capacity. However, double-stage compressors are quieter on low capacities than single-stage units. Those with variable speed are quietest at lower capacities. The difference is about 10db. If you’re concerned about the noise level, you should consider a two-stage air compressor. But if you have a small workshop, it may not be suitable for you.
One-stage air compressors are generally more efficient than two-stage air compressors. The noise from a two-stage air compressor is lower because there’s no intermediate stage. Single-stage air compressors also use a piston that rotates in a single stage, while dual-stage air compressors, also known as duplex models, are more efficient. A single-stage air compressor is quieter, but double-stage compressors are louder.
air-compressor

Two-stage air compressors are more energy efficient

Two-stage air compressors are more energy-efficient than single-stage machines. The efficiency of two-stage air compressors is increased through a combination of improved efficiency and increased longevity. These machines can store more air and have higher compression ratios. One model of a two-stage compressor can hold approximately 83 cubic feet of air at 100 PSI and 120 cubic feet at 150 PSI. A two-stage compressor is also quieter.
Two-stage air compressors are more energy-efficient because they have two pistons instead of one. These air compressors achieve a higher pressure rating and recover more quickly. This type of compressor is perfect for jobs that require high air pressure for a prolonged period of time. In addition, they can operate multiple tools simultaneously. This makes them better for commercial and industrial use. Listed below are some benefits of two-stage air compressors.
Single-stage air compressors can power tools in the garage or kitchen, but they are not as reliable for industrial applications. Single-stage compressors have larger parts that tend to experience condensation. Furthermore, single-stage compressors do not last long in continuous use and are less energy-efficient than two-stage ones. Whether you’re using the compressor for a single tradesperson, a small crew, or a large construction crew, two-stage compressors are the best choice.
Single-stage air compressors are often used in small-scale food preparation and production. Single-stage air compressors are easy to transport between locations, and can be plugged into several electrical outlets. Single-stage compressors are also ideal for high-volume food processing. A dual-stage air compressor is ideal for industrial use. In some cases, you can even move the single-stage air compressor between two-stage air compressors.
Single-stage compressors often cycle too quickly, drawing more electricity than two-stage units. A variable speed unit stays on a low speed for hours at a time. Single-stage air conditioners force you to lower your thermostat settings while single-stage air conditioners run too often. Both units are energy-efficient but they are not as energy-efficient as variable-speed compressors. The main difference is that single-stage air conditioners tend to drain the power source quicker.

Piston-driven air compressors are quieter

A piston-driven air compressor is one of the quietest types of air compressors. It is less noisy than reciprocating air compressors. A piston-driven air compressor can reach 62 decibels, while a scroll compressor is around half that volume. The two main components of a scroll air compressor are the piston and the helical screw. These air compressors are both very efficient and quiet.
Older compressors are incredibly noisy. They produce a “wumpa” noise similar to a large engine. They are also capable of producing a high-pitched whine. These noises can be deafening, especially in a small workshop. That’s why it’s essential to look for a quiet compressor. But what makes a compressor quiet? Read on to learn more about this essential tool.
Another difference between piston-driven air compressors and electric-driven air compressors is the power source. Electric air compressors produce less noise than gas-powered compressors, which use an engine. Piston-driven air compressors are also more efficient. They also generate less heat, making them an ideal choice for offices and other settings where noise is a problem. The best way to decide between the two types of air compressors is to check the manufacturer’s warranty and read the ‘Description’.
Noise reduction is the first priority of a compressor’s owner, so make sure that you have the right model. If you’re working on something sensitive, don’t place the compressor too close to a building where people might be nearby. Noise can be very disruptive to the workspace and can cause health problems. To help combat noise, you’ll need to buy a quiet air compressor. And don’t forget to consider its location: Piston-driven air compressors are quieter than their reciprocating counterparts.
Piston-driven air compressors are quiet because the piston is made of thin metal and more rubber, which absorbs the sound. Unlike reciprocating air compressors, piston-driven air compressors are more efficient than their dual-piston cousins, which are quieter and more powerful. So which type is right for you? Take a look at some of the main differences between the two. If you want a quiet compressor, make sure it meets the specifications required by the job you’re working on.
air-compressor

Oil-lubricated air compressors are more cost-effective

There are several reasons why oil-lubricated air compressors are more expensive than dry-type air compressors. First of all, oil-lubricated air compressors tend to be more reliable and quiet. Additionally, oil-lubricated air compressors require fewer parts and can last longer than dry-type air compressors. These are just a few of the many benefits of using oil-lubricated air compressors.
Oil-free air compressors have some disadvantages. They are less durable and may not be as efficient as oil-lubricated models. Additionally, because oil-lubricated air compressors use oil, they can get very noisy. While they are less expensive, they are not the best option for heavy-duty work. However, modern oil-free air compressors have soundproofing and are suitable for industrial use.
When purchasing an oil-lubricated air compressor, make sure to choose one with a tank capacity that meets your needs and your space. Larger tanks can be more expensive than small tanks, but larger units are easier to move around. Also, be sure to consider the weight and size of the portable air compressors when making your choice. If the weight is too large, you may have trouble carrying it from place to place.
Another benefit of using oil-lubricated air compressors is their reduced need for oil. These models can last up to a decade longer than oil-free counterparts. Oil-free air compressors are more affordable and can achieve the same high performance as their oil-lubricated counterparts. Many industrial applications benefit from these air compressors. So, which one is right for you? We’ve listed a few of them below.
Another benefit of choosing an oil-lubricated air compressor is the reduced cost of maintenance. This type is more durable than its oil-lubricated counterparts, which require regular oil changes to keep them running smoothly. However, it is not feasible to transport an oil-lubricated compressor, which means that you must install it permanently to keep it working efficiently. In addition, these air compressors are difficult to move and are not portable, which can limit your ability to use it in a pinch.

China Best Sales Water Lubricated Oil Free 22kw Dry Scroll Rotary Screw Air Compressor Environmental Friendly Industrial Pollution-Free Medical with Great quality
editor by CX 2023-05-18

China high quality 35kw 50kw 55kw 10bar Rotary Cordless Gasoline Air Compressor air compressor for sale

Product Description

OFAC oil-free screw air compressor used Japanese Mitsui’s original technology, who is the only maintenance service provider in China.

TECHNICAL DATA
Model	Power		Pressure (bar)	Air Flow (m3/min)	Noise Level dBA	Outlet Size	Weight (kgs)	Lubricating Water(L)	Filter Element (B)-(Z)	Dimension LxWxH (mm)
OF-7.5F	7.5kw	10hp	8	1.0	60	RP 3/4	400	22	(25cm) 1	10007201050
OF-11F	11kw	15hp	8	1.6	63	RP 3/4	460	22	(25cm) 1	11568451250
OF-15F	15kw	20hp	8	2.5	65	RP 1	620	28	(50cm) 1	13069451260
OF-18F	18.5kw	25hp	8	3.0	67		750	33		152010601390
OF-22F	22kw	30hp	8	3.6	68		840	33		152010601390
OF-30F	30kw	40hp	8	5.0	69	RP 11/4	1050	66	(25cm) 5	176011601490
OF-37F	37kw	50hp	8	6.2	71	RP 11/4	1100	66		176011601490
OF-45S	45kw	60hp	8	7.3	74	RP 11/2	1050	88		176011601490
OF-45F	45kw	60hp	8	7.3	74	RP 11/2	1200	88		176011601490
OF-55S	55kw	75hp	8	10	74	RP 2	1250	110	(50cm) 5	190012501361
OF-55F	55kw	75hp	8	10	74		2200		(50cm) 7	235012501880
OF-75S	75kw	100hp	8	13	75		1650		(50cm) 5	190012501361
OF-75F	75kw	100hp	8	13	75		2500		(50cm) 7	255016201880
OF-90S	90kw	125hp	8	15	76		2050		(50cm) 5	190012501361
OF-90F	90kw	125hp	8	15	76		2650		(50cm) 7	255016201880
OF-110S	110kw	150hp	8	20	78	DN 65	2550	130	(50cm) 12	220016001735
OF-110F	110kw	150hp	8	20	78		3500	130		300017002250
OF-132S	132kw	175hp	8	23	80		2700	130		220016002250
OF-160S	160kw	220hp	8	26	82		2900	165		220016002250
OF-185S	185kw	250hp	8	30	83	DN 100	3300	180	(50cm) 22	286018001945
OF-200S	200kw	270hp	8	33	83		3500			286018001945
OF-220S	220kw	300hp	8	36	85		4500			286020002300
OF-250S	250kw	340hp	8	40	85		4700			286020002300
OF-315S	315kw	480hp	8	50	90		5000			286020002300

F– air cooling method S– water cooling method

The brand “OFAC, OFC” specializes in the R&D, manufacturing, sales and service of compressors, oil-free compressors and air end, special gas compressors, various air compressors and post-processing equipment, providing customers with High-quality, environmentally friendly and efficient air system solutions and fast and stable technical services.

FAQ

Q1: Warranty terms of your machine?
A1: Two year warranty for the machine and technical support according to your needs.

Q2: Will you provide some spare parts of the machines?
A2: Yes, of course.

Q3: What about product package?
A3: We pack our products strictly with standard seaworthy case. Rcommend wooden box.

Q4: Can you use our brand?
A4: Yes, OEM is available.

Q5: How long will you take to arrange production?
A5: Immediate delivery for stock products. 380V 50HZ we can delivery the goods within 3-15 days. Other voltage or other color we will delivery within 30-45 days.

Q6: How Many Staff Are There In your Factory?
A6: About 100.

Q7: What’s your factory’s production capacity?
A7: About 550-650 units per month.

Q8: What the exactly address of your factory?
A8: Our first workshop located in HangZhou, ZheJiang , second workshop located in HangZhou, ZheJiang , China.

After-sales Service:	2 Years
Warranty:	2 Years
Lubrication Style:	Oil-free
Cooling System:	Air Cooling
Power Source:	AC Power
Cylinder Position:	Horizontal

Customization:	Available \|

air-compressor

How to Choose the Right Air Compressor

An air compressor uses pressurized air to power a variety of tools. They are most commonly used to power nailers and impact wrenches. Other popular uses for air compressors include paint sprayers and impact wrenches. While all air compressors have the same basic construction, their specialty differs. Ultimately, their differences come down to the amount of air they can push. Read on for information on each type of air compressor. These tools are great for many different purposes, and choosing the right air compressor depends on your specific needs.

Electric motor

While purchasing an electric motor for air compressor, compatibility is a key factor. Not all motors work with the same type of air compressor, so it’s important to check the manufacturer’s instructions before purchasing. By doing this, you can avoid wasting money on an incompatible motor. Another important consideration is speed. A motor’s speed is its rate of rotation, measured in revolutions per minute. It is critical that you purchase a motor with sufficient speed to meet the needs of your air compressor.
Typically, an electric motor for air compressor is 1.5 hp. It is ideal for use with medical equipment and metal-cutting machines. It also performs well under continuous operation and offers a high efficiency and energy-saving performance. Moreover, it features an attractive price, making it a good choice for a wide range of applications. If you are looking for a motor for an air compressor, look no further than a ZYS series.
A motor’s protection class indicates how the motor will operate. Protection classes are specified by the IEC 60034-5. These are stated with two digits and represent the protection against solid objects and water. For example, an IP23 rating means that the motor will be protected from solid objects, while IP54 means that it will protect from dust and water sprayed from all directions. It is vital to choose a motor with the correct protection class for your air compressor.
When choosing an electric motor, you should consider whether it’s compatible with the brand of air compressor. Some may be compatible, while others may require advanced electronics skills to repair. However, most air compressors are covered by warranty, so it’s important to check with the manufacturer if the warranty is still in effect before you spend a dime on a replacement. The motor should be replaced if it has failed to perform as designed.
air-compressor

Oil bath

Air compressors require proper lubrication to function efficiently. The piston must draw air with minimal friction. Depending on their design, air compressors can either be oil-lubricated or oil-free. The former uses oil to reduce piston friction, while the latter splashes it on the cylinder bearings and walls. Such air compressors are commonly known as oil-flooded air compressors. In order to keep their oil baths clean, they are recommended for use in locations with high dust levels.

Start/stop control

An air compressor can be controlled by a start/stop control. This type of control sends a signal to the main motor that activates the compressor when the demand for air falls below a preset limit. This control strategy is effective for smaller air compressors and can be useful for reducing energy costs. Start/stop control is most effective in applications where air pressure does not change frequently and where the compressor is not required to run continuously.
To troubleshoot this problem, you need to check the power supply of your compressor. To check the supply side, use a voltage monitor to determine if power is flowing to the compressor. Ensure that the power supply to the compressor is steady and stable at all times. If it fluctuates, the compressor may not start or stop as expected. If you cannot find the problem with the air compressor power supply, it may be time to replace it.
In addition to the start/stop control, you may want to purchase additional air receivers for your air compressor. These can increase the capacity of air stored and reduce the number of times it starts and stops. Another way to decrease the number of starts per hour is to add more air receivers. Then, you can adjust the control to match your requirements. You can also install a pressure gauge that monitors the compressor’s performance.
Start/stop control for air compressors can be complex, but the basic components are relatively easy to understand. One way to test them is to turn the compressor on or off. It is usually located on the exterior of the motor. If you’re unsure of the location of these components, check the capacitors and make sure that the air compressor is not running while you’re not using it. If it does, try to remove the capacitor.
Variable displacement control is another way to adjust the amount of air flowing into the compressor. By controlling the amount of air, the control can delay the use of additional compressors until more required air is available. In addition to this, the device can also monitor the energy used in the compressor. This control method can result in substantial energy savings. You can even save on the amount of electricity by using variable displacement control. It is essential for efficient compressed air systems.
air-compressor

Variable speed drive

A VFD, or variable frequency drive, is a type of electric motor that adjusts its speed to match the demand for air. It is an efficient way to reduce energy costs and improve system reliability. In fact, studies have shown that a 20% reduction in motor speed can save up to 50% of energy. In addition, a VFD can monitor additional variables such as compressor oil pressure and motor temperature. By eliminating manual checks, a VFD will improve the performance of the application and reduce operating costs.
In addition to reducing energy costs, variable-speed drives also increase productivity. A variable-speed air compressor reduces the risk of system leaks by 30 percent. It also reduces the risk of system leaks by reducing pressure in the system. Because of these advantages, many governments are promoting this technology in their industries. Many even offer incentives to help companies upgrade to variable-speed drives. Therefore, the variable-speed drive can benefit many air compressor installations.
One major benefit of a variable-speed drive is its ability to optimize energy use. Variable frequency drives are able to ramp up and down to match the demand for air. The goal is to optimize the pressure and flow in the system so that the best “dead band” occurs between forty percent and eighty percent of full load. A variable-speed compressor will also increase energy efficiency because of its programmability.
A variable-speed air compressor can also be used to control the amount of air that is compressed by the system. This feature adjusts the frequency of power supplied to the motor based on the demand. If the demand for air is low, the frequency of the motor will reduce to save energy. On the other hand, if there is an excess demand for air, the variable-speed compressor will increase its speed. In addition, this type of air compressor is more efficient than its fixed-speed counterpart.
A VFD has many benefits for compressed air systems. First, it helps stabilize the pressure in the pipe network, thereby reducing the power losses due to upstream pressure. It also helps reduce the power consumption caused by fluctuations in upward pressure. Its benefits are also far-reaching. And as long as the air pressure and air supply is properly sized, a VFD will help optimize the efficiency of compressed air systems.

China high quality 35kw 50kw 55kw 10bar Rotary Cordless Gasoline Air Compressor air compressor for sale
editor by CX 2023-05-17

China 100% Oil-Free Atlas Copco Wheel Screw Air Compressor Rotary From China with Hot selling

Relevant Industries: Garment Outlets, Constructing Substance Retailers, Equipment Restore Outlets, Foodstuff & Beverage Manufacturing facility, Retail, Foodstuff Shop, Strength & Mining, Food & Beverage Shops, Textile sector, Health care gear, Chemical market, Ship, Railway, cement
Showroom Spot: None
Issue: New
Variety: Screw
Configuration: Stationary
Electrical power Source: AC Electrical power
Lubrication Design: Oil-cost-free
Mute: NO
Product Quantity: ZR 3 [email protected]

air-compressor

Choosing the Right Air Compressor For Your Home

You will find that air compressors are indispensable tools for a variety of situations, including garages, home workshops, and basements. These tools can power a variety of tools, and each model is sized to suit the job at hand. Because air compressors have only one motor, they are lightweight, compact, and easy to handle. Using one air compressor to power several tools will also reduce the wear and tear on individual components. This article will introduce some important characteristics to look for when choosing the right air compressor for your home.

Positive displacement

A positive displacement compressor applies pressure to a fluid, whereas a centrifugal one does the opposite. A positive displacement compressor creates the desired pressure by trapping air and increasing its volume. Its discharge valve releases the high-pressure gas. These compressors are used in industrial applications and nuclear power plants. The difference between a positive and negative displacement compressor is that a positive displacement compressor can compress and release air at a consistent rate.
A positive displacement air compressor uses a reciprocating piston to compress air. This reduces the volume of the air in the compression chamber, and a discharge valve opens when the pressure reaches the desired level. These compressors are used in bicycle pumps and other pneumatic tools. Positive displacement air compressors have multiple inlet ports and have several configurations. Positive displacement air compressors have a single-acting and double-acting piston, and can be oil-lubricated or oil-free.
A positive displacement air compressor is different from a dynamic compressor. It draws air into the compression chambers and then releases the pressure when the valve is opened. Positive displacement compressors are common in industrial applications and are available in single-acting, double-acting, and oil-lubricated models. Large piston compressors have ventilated intermediate pieces and crossheads on gudgeon pins. Smaller models have permanently sealed crankcases with bearings.

Oil-free

Oil-free air compressors have some advantages over their oil-lubricated counterparts. They do not require lubrication oil because they are coated with Teflon. The material has one of the lowest coefficients of friction and is layered, so it slides past other layers with little effort. Because of this, oil-free compressors tend to be cheaper and still deliver comparable performance. Oil-free compressors are a good choice for industrial applications.
The life of an oil-free air compressor is significantly longer than an oil-lubricated counterpart. These models can operate up to 2,000 hours, four times longer than the average oil-lubed compressor. Oil-free compressors also have a significantly lower operating noise than their oil-lubricated counterparts. And because they don’t need oil changes, they are quieter. Some even last up to 2,000 hours.
An oil-free air compressor is a good choice if your application requires high levels of purity. Several applications require ultra-pure air, and even a drop of oil can cause product spoilage or damage to production equipment. In addition to the health risks, an oil-free air compressor reduces the costs associated with oil contamination and minimizes leaks. It also eliminates the need for oil collection, disposal, and treatment.
A typical oil-free air compressor is very efficient, requiring only about 18% of the full load horsepower. However, oil-free compressors have a higher risk of premature failure and are not recommended for large-scale industrial applications. They may also use up to 18% of the compressor’s full capacity. They may sound appealing, but you must make sure you understand the benefits of an oil-free air compressor before choosing one for your industrial applications.

Single-stage

A single-stage air compressor is designed to provide the power for a single pneumatic tool or device. These machines are generally smaller than two-stage compressors and produce less heat and energy. These machines aren’t designed for heavy-duty industries, but they are still highly effective for a variety of applications, including auto shops, gas stations, and various manufacturing plants. They can also be used in borewells, as they are suitable for small spaces with low air flow requirements.
A single-stage air compressor has one cylinder and two valves – the inlet and the delivery valves. Both of these valves function mechanically, with the inlet valve controlling torque and the delivery one controlling air pressure. Generally, single-stage compressors are powered by a gas engine, but there are also electric models available. The single-stage air compressor is the most common type of air compressor. It has a single cylinder, one piston, and one air cylinder.
The single-stage air compressors are used for small projects or personal use. A two-stage air compressor is more effective for industrial projects. Its longer air end life makes it more efficient. It is also more efficient for use in the automotive industry, where the engine has many cylinders. In general, single-stage compressors require a higher power level. The single-stage model is ideal for small projects, while a two-stage one is suitable for larger-scale arsenals.
air-compressor

CFM

The cubic foot-per-minute (CFM) of an air compressor is the output of the machine. In order to calculate the CFM level, start by looking at the compressor’s specifications. You should know how many cubic feet the unit can hold and how many pounds per square inch it can compress. Once you have these information, you can calculate the CFM. Now you can use these numbers to select an appropriate air compressor for your needs.
The most common way to increase the CFM of an air compressor is to turn the regulator down. By turning the dial down, the air compressor will produce more than 10 CFM. You can also try connecting two output valves. Make sure that the settings are adjusted properly before you begin. This will ensure that your air compressor is functioning at its maximum efficiency and lifespan. To increase the CFM of your air compressor, first check that your regulator is calibrated for the desired pressure level.
To calculate the CFM of an air compressor, first determine the tank volume of the machine. Then, multiply this volume by the time it takes to fill the tank. Then, divide the result by 60 seconds to calculate the CFM. Once you know how much air your machine can hold, you can choose a suitable air compressor. If you’re working in a confined area, you should buy a tool with a large tank.

PSI

The PSI of an air compressor is the pressure that it can output. A typical air compressor has a gauge connected to the airline at the bottom, next to it, or between the two. The gauge tells the actual pressure of the air compressor, while the cut-out pressure is determined by the manufacturer. The manufacturer recommends that you set the cut-out pressure twenty to forty PSI higher than the factory recommended pressure. If you want to set the pressure for your nail gun, you can use the cut-in and cut-out pressures on your compressor, and the tank won’t exceed this range.
The PSI of an air compressor measures the force that it can deliver, which is often in pounds per square inch. For most air tools, you need at least forty to 90 psi. In general, reciprocating air compressors work on an on/off basis. This relationship is known as the duty cycle. All air compressors are rated for a particular duty cycle, such as fifty percent on and twenty-five percent off.
The Psig of an air compressor is not free, as many people believe. The PSI of an air compressor is not free, but it is essential to maintain it for safe operations. If you’re having trouble maintaining a consistent pressure, consider turning down the PSI of your compressor by 2 psig. This will determine the critical pressure for the machine. You’ll also increase the amount of energy in the system by one percent.
air-compressor

Power source

The power source for an air compressor is crucial in its operation. Without the correct voltage and amperage, air compressors will not function properly. The power source must be close to the compressor so that it can plug into an electrical outlet. If it is too far from the outlet, the compressor may not be able to build enough pressure. When this happens, the fuse inside the air compressor will turn off to protect the user. The power source should be a safe distance from the compressor.
Most manufacturers do not specify the power source for an air compressor. Depending on the horsepower, the compressor will require approximately four amps of power. A one-horsepower compressor would draw about twelve amps. If it were powered by a typical 120-volt household supply, its motor would exceed the 15-amp breaker capacity. A larger air compressor, however, will require a separate 15-amp power source, making it impossible to use it with this type of power source.
The power source for an air compressor is typically electrical alternating current (AC) that is equivalent to the voltage on a standard wall outlet. A three-phase air compressor, on the other hand, requires a special AC supply with three electrical offset pulses. Regardless of the type of air compressor, the power source must be compatible with the incoming power service. One of the most common problems when attempting to connect an air compressor to an AC power source is undersized wire. This results in low voltage and high amperes, tripping of over-load relays and blown fuses.

China 100% Oil-Free Atlas Copco Wheel Screw Air Compressor Rotary From China with Hot selling
editor by Cx 2023-05-06

China supplier Manufacturer Supply Industrial Portable Diesel Rotary Screw Air Compressor Drill Mining 175 Cfm Diesel Air Compressor air compressor portable

Product Description

Manufacturer Supply Industrial Portable Diesel Rotary Screw Air Compressor Drill Mining 175 CFM Diesel Air Compressor

Q: Are you a factory or a trading company?
A: We are factory. And we have ourselves trading company.

Q: What is the specific address of your company?
A: No.3, 2nd Street, yuanle Road, Xihu (West Lake) Dis.sheng Town, HangZhou City, ZheJiang Province, China

Q: Do your company accept ODM & OEM?
A: Yes, of course. We accept full ODM & OEM.

Q: What about the voltage of products? Can they be customized?
A: Yes, of course. The voltage can be customized according to your requirement.

Q: Do your company offer spare parts of the machines?
A: Yes, of course, high quality spare parts are available in our factory.

Q: What are your payment terms?
A: 50% T/T in advance, 50% T/T before delivery.

Q: What payment ways do you accept?
A: T/T, Western Union

Manufacturer Supply Industrial Portable Diesel Rotary Screw Air Compressor Drill Mining 175 CFM Diesel Air Compressor

After-sales Service:	Video Support
Warranty:	1 Year Warranty
Lubrication Style:	Lubricated
Cooling System:	Air Cooling
Power Source:	AC Power
Structure Type:	Closed Type

Samples:	US$ 2999/Piece 1 Piece(Min.Order) \| Request Sample

Customization:	Available \|

air-compressor

Choosing an Air Compressor

Considering a new Air Compressor? Here are some tips to make the decision easier. Learn the pros and cons of each type, including the differences between oil-injected and oil-free models, single stage and positive displacement. In addition, learn more about the different technologies that are available for your air compressor. It is important to choose an appropriate unit for the type of work you do. Here are some of the best compressors available today.

Positive displacement

There are several different types of air compressors, but most are positive displacement air compressors. They use a rotary or reciprocating component to compress air. The reciprocating component compresses air by reducing the volume of the chamber. Positive displacement compressors are used in bicycle pumps, chemical plants, and refrigerators. Positive displacement air compressors use multiple inlet ports. Despite the various types, the principle of operation remains the same.
Another type of positive displacement air compressor is a reciprocating piston. The piston inside a cylinder moves up and down, causing the compressed air to fill the upper part of the cylinder. These air compressors are used in a variety of different applications, including blowing bottles and gas pipelines. These air compressors can be water-cooled, lubricated, or non-lubricated. Different types have different capacities and air pressures.
A positive displacement flowmeter uses a rotating chamber that divides continuous fluid into discrete portions. The number of times the chamber is filled and discharged can be used to estimate the flow rate. The rotation speed of the measuring chamber is directly proportional to the flow rate. The drawbacks of this type of positive displacement flowmeter are that it is prone to jamming. If the fluid contains particles, it may be too thick for the meter to determine flow rate.
A negative displacement air compressor was invented in 1860 and is the oldest type of compressor. It uses two lobes positioned in a circular cavity. One rotor is connected to an engine, while the other pushes the other one to spin in the opposite direction. Negative displacement compressors are low-maintenance, but they do require more precision. They are often used in nuclear power plants because they use the kinetic energy of the rotating elements to produce pressure.

Oil-injected

Oil-flooded or oil-injected air compressors use liquid to seal and lubricate moving parts and reduce noise. Oil-flooded air compressors are effective for a variety of pneumatic tools and accessories. Some models have a thermostat that controls the amount of oil used during operation. Other types of oil-flooded air compressors are piston-type models. Here is an overview of the basic differences between these two air compressors.
An oil-injected air compressor is more expensive than a comparable oil-free air compressor, but its advantages far outweigh its disadvantages. An oil-free compressor is quieter, requires less maintenance, and has a lower price tag. It also offers a greater degree of air purity. A number of other advantages may also make this type of air compressor the better choice for many industrial settings. If you need a high-pressure compressor in a tight space, consider the benefits of an oil-free system.
Oil-injected air compressors require more maintenance than oil-free models. Both types of air compressors offer similar capacity and ISO 8573-1 Class 0 and 1-2 purity, but the oil-injected systems require more air-treatment components. They require an activated carbon filter and coalescing filter. Oil-injected air compressors will likely remain the standard for industrial air compressors for many years. And since their performance and efficiency are comparable, it may be worthwhile to invest in some point-of-use air treatment.
Both types of air compressors have their benefits. However, choosing between oil-free and oil-injected air compressors is not as straightforward as you might think. Whichever type you choose, make sure it will meet your needs. The benefits of an oil-injected air compressor outweigh their disadvantages. In general, oil-injected air compressors are more durable and can last longer than oil-free models. The only downside is their higher price.
air-compressor

Oil-free

When choosing an air compressor for your company, you’ll need to determine what it is going to be used for. For example, if you’re planning on using it to power multiple workers, you should consider getting an oil-free compressor. An oil-free compressor, on the other hand, is quieter and can power several workers at a time. If you’re a contractor, the most important consideration will be the type of jobs you’ll be doing. Higher air pressure means greater demand for air flow, and more pressure can damage the equipment.
Oil-free compressed air is certified 100% free of contaminants. Technically, oil-free air is not completely free of foreign matter, but it is extremely low within the limits of practical air quality. A technically oil-free air compressor might have a total oil level of 0.003 mg/m3. If you’re in need of a technically oil-free air compressor, you must install an air treatment equipment after your current compressor.
If you’re in the manufacturing industry, a good oil-free air compressor will save you money and reduce your environmental impact. Many of these tools require air compressors to work, and this equipment will ensure that they don’t get contaminated. To buy the best oil-free compressor, you should learn a bit about the different terms used by compressor repair companies. ACFM, for example, is the amount of air that can be compressed in one minute at rated conditions.
When you’re using an oil-free air compressor, you should know that the overall life of the device will be much shorter. Compared to an oil-flooded rotary screw air compressor, an oil-free compressor typically has a lifespan of 50 thousand hours. But it’s important to understand that this type of compressor can still cause damage to piping and processes. Therefore, you should choose an oil-free compressor when you need to clean air for your business.

Single-stage

A single-stage air compressor, also known as a piston air compressor, compresses air only once before storing it in a cylinder. This stored air has enough energy to power a variety of pneumatic tools, such as screwdrivers, chisels, and wrenches. These units are also ideally suited for low-flow applications and are widely used in gas stations, auto shops, and various manufacturing plants.
A single-stage air compressor uses two valves – one for inlet and one for outlet – to transfer compressed air. Both valves are actuated by springs. The inlet valve has a slight curvature to provide protection from damage. The compressor’s outlet valve opens when the pressure in the cylinder is higher than the pressure in the storage tank. The piston moves very quickly inside the cylinder, exerting a high amount of force throughout the compression process. This high piston speed is a common cause of compressor wear and tear.
A single-stage air compressor is ideal for smaller tradesmen and small construction crews. Its lightweight and compact design make it easier to transport and store. While it may be tempting to buy the first cheap air compressor you see, it’s important to balance the price against performance to choose the right air compressor for your needs. The best single-stage air compressor is one that provides excellent performance and durability. Its two-stage counterpart is designed for larger construction teams and large applications.
The main difference between a single-stage and a two-stage air compressor lies in their capacity. A single-stage air compressor compresses air only once and delivers it into the storage tank, while a two-stage compressor compresses it twice, creating double the pressure. Because of this, single-stage air compressors are cheaper and versatile than their counterparts, which means that they can be used for multiple purposes.
air-compressor

Low-noise

A low-noise air compressor is a type of industrial compressor that is less noisy than regular air compressors. These are generally smaller machines designed for smaller factories and workshops with a few to several employees. They are designed to handle mid-weight volumes of compressed air per day. This type of compressor is especially useful for smaller manufacturing businesses that need to produce compressed air for medical applications. Small breweries can also benefit from the low-noise capabilities of these compressors.
Low-noise air compressors come in various sizes and features. For smaller jobs, you can purchase a one-gallon model that is lightweight and portable. For larger jobs, you can purchase one with a larger tank that can provide more pressure for longer jobs. However, a larger tank will make the compressor heavier and harder to transport. To avoid this, make sure to check the size of the tank and how much power it can handle.
Considering a low-noise air compressor for your business? If so, you’ve come to the right place. There are a variety of affordable and dependable low-noise options to choose from. A CAT 10020C, for example, is designed to provide high-volume air to many outlets at once. A CAT 10020C comes with a 10-gallon tank, wheels, and a carrying handle.
Noise levels can also affect the productivity of employees. When employees work with air compressors in close proximity to each other, they may develop tinnitus. If employees are free from tinnitus because of the loud noise, they are likely to work more efficiently. Moreover, it will be easier for them to focus and communicate efficiently. If you need a compressor, a low-noise one is an excellent choice.

China supplier Manufacturer Supply Industrial Portable Diesel Rotary Screw Air Compressor Drill Mining 175 Cfm Diesel Air Compressor air compressor portable
editor by CX 2023-04-22

China Hot selling 7.5kw 10HP 380V Stationery CZPT Variable Speed Direct Drive Air Cooling AC Power 1.03m3/Min Industrial Rotary Type Screw Air Compressor for Sale small air compressor

Product Description

7.5kw 10HP 380V Stationery CZPT Variable Speed Direct Drive Air Cooling AC Power 1.03m3/min Industrial Rotary Type Screw Air Compressor for Sale

1. High-efficiency permanent magnet motor, more energy-saving than ordinary three-phase asynchronous motor

2. The main machine adopts a new generation of profiled main machine, one-piece shaft structure, compact structure, stable operation and high energy efficiency
3. Intelligent control, reasonable design, high reliability of the whole machine, simple and convenient daily maintenance
4. PID fuzzy control makes the pressure control more accurate and the equipment runs more smoothly

Product Parameters

Variable speed air compressor parameters

Model	Capacity(m³/min)	Power (kW)	Noise(dB)	Outlet diameter	Dimensions(mm)			Weight(kg)
	0.8(Mpa)				Length	Width	Height
SEM-10A	1.03	7.5	60±2	RP3/4	800	600	800	130
SEM-20A	2.34	15	68±2	RP3/4	1050	800	1060	240
SEM-30A	3.59	22	72±2	RP1	1150	860	1190	300
SEM-50A	6.28	37	78±2	RP1-1/2	1250	1040	1330	460
SEM-75A	9.3	55	70±2	RP2	1850	1300	1540	1000
SEM-100A	12.06	75	75±2	G2	1850	1300	1540	1400
SEM-120A	14.8	90	75±2	G2	1850	1300	1560	1400
SEM-150A	19.6	110	78±3	G2 1/2	2350	1450	1850	2500
SEM-175A	22	132	78±3	G2 1/2	2350	1450	1850	2500

Two-stage compression parameters

Model	Capacity(m³/min)	Power (kW)	Noise(dB)	Outlet diameter	Dimensions(mm)			Weight(kg)
	0.8(Mpa)				Length	Width	Height
SEMD-40A	5.9	30	≤70±2	2	1900	1300	1480	800
SEMD-50A	7	37	≤70±2	2	1900	1300	1480	1000
SEMD-60A	9.5	45	≤70±2	2	1900	1300	1480	1100
SEMD-75A	12.5	55	≤70±2	G2	2050	1350	1650	1560
SEMD-100A	15.5	75	≤70±2	G2	2050	1350	1650	2460
SEMD-120A	19.5	90	≤75±2	G2 1/2	2300	1500	1750	2500
SEMD-150A	24	110	≤80±2	DN80	2650	1700	1880	3000
SEMD-175A	28	132	≤80±2	DN80	2650	1700	1880	3300

Detailed description

1.Rotor
Rotors are asymmetric in profile, backed up by ball bearings and roller bearings. Operates at a low speed, thereby low in abrasion and maintenance expenses, air end is long service life.

2.Control panel
Intelligent microcomputer-based control technology can monitor and control in all aspects the complete machine following your instructions, remote control realizes unattended operation.

3.Oil filter
Rotary filters are applied to completely remove the impurities in the lubricating oil, easy to replace and free of oil impregnate.

4.Air filter
Original imported filter material,high efficiency 3 levels air separator, keep internal cleanliness of the system effectively.

5.Cooler
The cooler is located separately from the internal isolation of the chassis,so that the cooling fans would suck air with normal temperature from outside.Compared to cooling by using the air of 45~65°Cinside the chassis,the cooling fans could save over 30% energy when the temperature of the air outlet decreases 3~8°C.

6.Excellent quality of motors
Professional customized high efficiency permanent magnet motor,Compared to normal motors, Permanent magnet motor more excellent energy saving.protection grade:IP65

7.The air end of compressor is of high efficiency and long life
Excellent CZPT bearings are adopted for compressor air end to better improve their use efficiency,reduce abrasion.and to realize long term operation with no faults,low noise and long life.

Application industry

Air compressors are widely used in industries to meet customers’ various gas needs,such as Industrial equipment,pipelines, printing service, electric power, metallurgy, oil&gas, power plants, shipbuilding, plastics, painting, textile, blow molding, steel industry, chemical industry, shipyard, machanical etc.

Company Profile

Dehaha Compressor was founded in 1996 with over 150 skilled employees and more than 25 R&D engineersteams ‘ .We focus on the research & develop,manufacture and energy-saving solutions of screw air compressor to create value for customers and society.In 2018 our total sales volume approached 15 million US dollars.By over 23 years enhanced experiences of designing,producing and marketing,today our valued customers are over 130 countries. Germany Standard and 13 years exporting experience help us won more than 50 loyal overseas agents.

Dehaha’s primary businesses focus in following key areas:
Oil-injected rotary screw compressors
Portable screw air compressors
Oil free air compressors
High pressure air compressors
Air treatment equipment

At Dehaha,we earn our customers’ trust and satisfaction by manufacturing the superior quality compressed air products for all industries.All of our products are designed for reliable performance,easy maintenance,and maximum energy efficiency.We have sales representatives who can speak English,Spanish,French,and Russian which makes it easier for our clients from all over the world to interact and negotiate with us.

Dehaha continuously innovates product development and management to meet customers’ demand.The powerful enterprise culture and continuous innovation make CZPT improved rapidly to reach the business principle”Energy Saving First, Mutual Value Shared”. CZPT mission is to be a world-renowned high-end brand,with sustainable development,constantly improving its own value and sharing it with our customers and staff.Committed to offer our customers a silent and energy-saving manufactured products.
Certificates

Our exhibition

Our service

1. 24h/7 after sales support in different languages
2. Follow up the in products in 2 months interval by email or call
3.Guidance of installation and commissioning on site can be provided by factory-trained technicians
4. Technical training for customers in CZPT air compressor factory or working site.
5. plenty of drginal spare parts with proven quality are all available from our stocks in Jianhgsu .
6. All kinds of technical documents in different languges.

FAQ

1.Why customer choose us?

DHH CZPT ZheJiang CO.,LTD.with 23 years old history,we are specialized in Rotary Screw Air Compressor.Germany Standard and 13 years exporting experience help us won more than 30 loyal foreign agents.We warmly welcome your small trial order for quality or market test.

2.Are you a manufacturer or trading company?
We are professional manufacturer with big modern factory in HangZhou,China,with professional design team.Both OEM & ODM service can be accepted.

3.Where is your factory located? How can I visit there?
Our factory is located in HangZhou City, ZheJiang Province, China. We can pick up you from ZheJiang , it’s about 1 hour from ZheJiang Xihu (West Lake) Dis. Airport to our factory. Warmly welcome to visit us!

4.What’s your delivery time?
380V 50HZ we can delivery the goods within 14 days. Other electricity or other color we will delivery within 22 days,if urgently order,pls contact our sales in advance.

5.How long is your air compressor warranty?
One year for the whole machine and 2 years for screw air end, except consumable spare parts and we can provide some spare parts of the machines.

6.How does your factory do regarding quality control?
Quality is everything. we always attach great importance to quality controlling from the very beginning to the very end. Our factory has gained ISO9001:2015 authentication and CE certificate.

7.How long could your air compressor be used?
Generally, more than 10 years.

8. What’s payment term?
T/T,L/C,D/P,Western Union,Paypal,Credit Card,and etc.Also we could accept USD, RMB, Euro and other currency.

9.How about your customer service?
24 hours on-line service available.48 hours problem solved promise.

10.How about your after-sales service?
(1) Provide customers with installation and commissioning online instructions.
(2) Well-trained engineers available to overseas service.
(3) CZPT agents and after service available.

Shipping Cost: Estimated freight per unit.	To be negotiated

Lubrication Style:	Lubricated
Cooling System:	Air Cooling
Power Source:	AC Power

Samples:	US$ 1200/SET 1 SET(Min.Order) \| Order Sample

Customization:	Available \|

air-compressor

The Air Compressor Is a Versatile Tool

The Air Compressor is one of the most versatile tools in any garage or workshop. It is easy to use and can perform a variety of tasks, from jackhammering to drilling. These machines are available in a wide variety of sizes and types, making it an excellent choice for a variety of situations. With a single motor, you no longer need separate motors for each tool. Its lightweight, compact design makes it easy to handle, and the single motor also reduces wear on parts.

Oil-injected

Oil-injected air compressors require a large amount of lubricant, which needs to be added to the sump regularly to maintain optimum performance. As there are many types of industrial fluids, a well-intentioned maintenance technician may add the wrong lubricant to the compressor. If this happens, the compressor will become incompatible with the lubricant, resulting in excessive carryover and the need to flush and replace downstream air treatment components.
Typically, the G 110-250 oil-injected rotary screw compressor from Atlas Copco provides reliable compressed air, preventing costly downtime. The G110-250 oil-injected rotary screw compressor is highly reliable and durable, enabling it to function in temperatures up to 46degC/115degF. Despite the oil-injected air compressor’s robust design, this unit requires very little on-site installation, and it features simple operation.
The primary advantage of oil-injected air compressors is the reduced cost of running. The cost of oil-free compressors is less than half of that of oil-injected ones, and it will require fewer maintenance costs in the long run. Moreover, the oil-free system is more environmentally friendly than oil-injected air compressors. But the drawbacks of oil-injected air compressors are substantial, too. It can contaminate finished goods and cause a significant financial risk for the manufacturer.
An oil-injected rotary screw air compressor offers several advantages over its counterpart. First, it features an innovative vertical design with variable-speed drive, allowing it to run more efficiently. Second, oil-injected air compressors reduce energy consumption by up to 50% compared to non-oil-injected air compressors. They also have a thermostatic valve, allowing them to maintain an optimum temperature. Thermostatically-regulated oil coolers allow the compressor to run more quietly.

Oil-free

What is an oil-free air compressor? The name refers to a type of air compressor that does not contain oil in the compressor chamber. Oil-free air compressors still use oil for various purposes, including lubricating the moving parts and managing waste heat. However, many people do not realize that their air compressor still requires oil for proper functioning. This article will explore why this type of air compressor is preferable for many users.
First of all, oil-free air technology has many benefits. For one, it reduces the energy cost involved in filtering air, and it minimizes leaks. Moreover, it also reduces the oil costs associated with compressor refills. And finally, it reduces the risks of contamination. Oil-free air technology is the future of compressed air. If you’re looking for an oil-free air compressor, here’s what to look for in your search.
Depending on the purpose of your air compressor, it may be beneficial to invest in an oil-free air compressor. Oil-lubricated air compressors are generally more durable than their oil-free counterparts, but they may cost twice as much. You should still consider the cost of ownership before purchasing an oil-free compressor. The oil-free models can be easier to transport, and they are more powerful. Moreover, they’re quieter than oil-lubed models.
An oil-free air compressor also means less maintenance, as it doesn’t need oil to work. This type of air compressors also features fewer moving parts, which means fewer places for problems to develop. All oil-free air compressors are manufactured to meet ISO Class 0 and 1 air purity standards. They also have less noise and vibration compared to their oil-based counterparts. So, why not choose an oil-free air compressor for your business?
air-compressor

Gasoline

When choosing a gas-powered air compressor, it’s important to consider the advantages of gasoline. This energy source can power a large air compressor without electricity. However, this type of air compressor lacks electrical hookup, so you’ll need to run an extension cord if you need to use it at a distance. However, gas compressors are able to function with just a gas tank. This makes them ideal for medium to heavy-duty industrial applications.
Another important consideration when choosing a gas air compressor is its size. Larger compressors are typically larger than portable ones and require more space. This makes them easier to transport and operate on the go. However, if you’re not sure which type of air compressor is best for you, consider the gas-powered versions. While they may be lighter, they don’t run as smoothly as their electric counterparts. Gasoline-powered compressors are not as portable as their electric counterparts and require proper maintenance.

Electricity

Electricity in an air compressor is not cheap. A 25 HP air compressor runs for ten hours each day, five days a week. The motor in these machines consumes 746 watts per hour. To find out how much electricity the equipment uses, multiply the wattage by the running time. For example, if the compressor runs for three hours, then it will use 1.9 kilowatt hours of electricity. To determine how much electricity an air compressor uses per day, you can calculate the kilowatt hours and multiply the number by the utility rate. Considering this, you can determine the cost of running your air compressor once per month.
The cost of operating an air compressor depends on the type of compressor. Electric air compressors are often silent and can run without any maintenance. These tools can be left unattended for up to four thousand hours before requiring repair. Electric air compressors require higher power for higher pressure, so you should plan accordingly. Whether or not you need a maintenance visit is up to you, but the benefit of not having to spend a fortune on repairs is priceless.
Although compressed air is not an energy-efficient source, its use in a variety of applications may save you money and kilowatts. Since an air compressor uses power when it is running, the cost is lower than the cost of operating a power tool. If you plan to use your air compressor for a long time, make sure that it is maintained properly. Proper care will save you money and power, and you may even be able to get an extended warranty if the compressor breaks down.
air-compressor

Variable frequency drive

The main purpose of a variable frequency drive (VFD) in an air compressor is to reduce energy consumption in the process of compression. A single motor drag system cannot adjust its speed continuously according to the weight of the load. By applying frequency control to the compressor, the power consumption can be reduced while maintaining the same pressure level. Therefore, a VFD is an excellent choice for compressors. Its benefits are numerous.
A VFD can also monitor the temperature of the motor and send error signals if the motor is running too hot or too cold. This eliminates the need for a separate sensor to monitor the oil pressure. These functions are useful not only in lowering energy consumption, but also in improving the performance of an application. Moreover, a VFD can monitor additional variables such as temperature and motor speed. Hence, it is a useful investment.
When using a VFD, it is crucial to choose the right motor. The speed of the compressor should be within the maximum starting limit of the motor. The air tank may be of any size, but a constant pressure limit is required to keep the VFD running within the service factor of the motor. In addition to a VFD, a master controller should also include a remote pressure set point and a PID card for a master controller. The transmitter should incorporate all useful data from the VFD, including the speed and the oil temperature. The VFD must be tested before it is integrated with the master control. It should be tested for min and max speed, temperature, and current within the expected range.
The use of a VFD in an air compressor has many benefits. One of the most notable is the reduction in power consumption. Fixed-speed compressors run on set points of six to seven bar. An extra bar of compression uses 7 percent of energy. This energy is wasted. A VFD-powered air compressor can also increase the life span of compressor parts. It is one of the best investments in your compressor. So, why wait any longer?

China Hot selling 7.5kw 10HP 380V Stationery CZPT Variable Speed Direct Drive Air Cooling AC Power 1.03m3/Min Industrial Rotary Type Screw Air Compressor for Sale small air compressor
editor by CX 2023-04-20

China Wholesale to B rotary screw compressor single phase screw compressors 10 hp 5kw screw air compressor with dryer 12v air compressor

Relevant Industries: Resorts, Garment Outlets, Constructing Material Outlets, Producing Plant, Foodstuff & Beverage Manufacturing unit, Farms, Restaurant, Foodstuff Shop, Building works , Food & Beverage Outlets, Marketing Company
Showroom Area: Canada, Turkey, United Kingdom, Viet Nam, Peru, Indonesia, Pakistan, India, Mexico, Spain, Thailand, Morocco, Kenya, Argentina, UAE, Colombia, Algeria, Kazakhstan, Ukraine, Kyrgyzstan, Worm wheel Customise Speed Reduction gearboxes transmission for motor reducer gearbox Tajikistan, Australia
Situation: New
Sort: Screw
Configuration: Stationary
Electricity Supply: AC Power
Lubrication Style: OIL-Considerably less
Mute: NO
Design Quantity: 22kw
Voltage: 380V 415V
Dimension(L*W*H): 1500*950*1250
Excess weight: 1350
Guarantee: 1 Calendar year
Doing work Strain: 14 bar, 8 bar, twelve bar
Air ability: six
Machinery Examination Report: Supplied
Online video outgoing-inspection: Presented
Advertising Kind: New Item 2019
Warranty of core elements: 2 many years
Main Components: PLC, Motor
Gas Variety: Air
Packaging Particulars: Wood plate
Port: HangZhou port

Modle	RH-10HP	RH-15HP	RH-20HP	RH-30HP	RH-50HP	RH-60HP
Motor electricity	7.5kw	11kw	15kw	22kw	37kw	45kw
Flow /pressure	1.2/.7	one.71/.seven	2.3/.7	three.8/.07	six.5/.seven	eight.5/.7
	one.1/.eight	one.65/.eight	two.twenty five/.8	3.6/.8	six.2/.eight	8./.8
	.9/1.	one.32/1.	1.8/1.	3./1.	five.6/1.	seven.5/1.
	.8/1.two	1.1/1.2	1.5/1.two	2.6/1.2	five./1.2	seven./1.two
Lubricating oil capacity(L)	twelve	sixteen	sixteen	26	26	28
Lenth mm	780	1050	1050	1300	1460	1460
Broad mm	600	seven hundred	seven hundred	850	one thousand	one thousand
Peak mm	12571	1100	1100	1160	1380	1380
Excess weight(kg)	215	335	335	465	630	825

Modle	RH-10HP	RH-15HP	RH-20HP	RH-30HP	RH-50HP	RH-60HP
Motor electricity	55	seventy five	ninety	one hundred ten	132	one hundred sixty
Flow /force	ten.5/.7	13.2/.seven	16.2/.seven	21/.07	24.60.seven	31/.seven
	10./.eight	13./.8	fifteen.8/.eight	20./.8	2.thirty/.8	thirty/.eight
	8.5/1.	10.9/1.	14./1.	eighteen./1.	21./1.	26/1.
	seven.6/1.two	nine.8/1.two	12.8/1.two	16./1.2	eighteen.5/1.two	22/1.2
Lubricating oil ability(L)	54	fifty four	seventy two	90	90	ninety
Lenth mm	1900	1900	1900	2300	2300	2500
Vast mm	1250	1250	1250	1470	1470	1470
Height mm	1605	1605	1605	1840	1840	1840
Excess weight(kg)	1130	1230	1325	1520	1710	2800

Packaging & Shipping and delivery

Business Data No make a difference when, no make a difference in which you are, our pursuit of top quality has never ever changed. Over the years, we have precisely measured each phase of our journey, dedicated to technological innovation and product optimization. With independence, focus, and fantastic specialist capabilities, it lays a strong basis for the improvement of the air compression machinery sector.

ZheJiang CZPT Machinery Tools Co., Ltd. is a higher-tech company specializing in the study and improvement, producing and income of air compressors, stress vessels and other products. CZPT has a number of intellectual property rights, a skilled R&D group, and senior complex operators. Beginning from the commencing position, we will dedicate our endeavours to each and every part to produce substantial-quality merchandise. It is commonly used in equipment, metallurgy, electronic energy, medicine, packaging, chemical market, food, mining, textile, transportation and several other industrial fields.
Higher high quality will come from each and every component that strives for perfection. Screw air compressors, cell air compressors and a variety of varieties of pressure vessels developed and made by CZPT Machinery. Leading the domestic market with its higher high quality, For CZPT Subaru 2.0T 2014-2018 Motor Timing Chain Fix Kit timing chain package higher performance, higher effectiveness, vitality saving and environmental protection, and exported to abroad. Highly automated operation will help clients decrease overall expenses to the utmost extent. Each exquisite craftsmanship comes from the persistence of scientific analysis personnel, and each and every breakthrough in high quality comes from the technicians’ strickly check. We have acquired extensive global market place acceptance and dependable reputation by virtue of superior creation technology, excellent method, superb item top quality, and sincere soon after-revenue services.
The believe in of clients has constantly been the most significant driving force for us to go ahead. “Create positive aspects for customers and win trustworthiness for the firm” is the survival benefit we often hold in mind. We provide a 24-hour provider assistance system to ensure that your problems are solved in a well timed, quick and exact fashion. Consistently boost the analysis and development of merchandise that satisfy consumer process specifications, and aspire to grow to be an professional in air compression gear.
Your satisfaction is our highest go after! We are prepared to work with you to build a much better foreseeable future.
CZPT Machinery, our top quality, your tomorrow.

FAQ
Q1: Are you manufacturing unit or trade company? A1: We are manufacturing unit verified by ALIBABA. Pls click right url to check Our Company Profile.
Q2: Can you make air compressors as my want?
A2: Yes,we can make diverse air compressors,this sort of as screw air compressor,rotary air compressor,piston air compressor,diaphragm air compressor,and so forth,which are extensively adopted in all industries.
Q3: Guarantee terms of your machine? A3: 24 months warranty for the machine,complex assistance in accordance to your demands.
Q4: Will you offer some spare areas of the devices? A4: Sure.We offer spare areas for everyday maintenance.
Q5: How long will you consider to arrange creation? A5: Provide common goods inside 20days, Other customized merchandise need to have to be decided.
Q6:: What is the exactl handle of your factory?
A6: ZheJiang CZPT Equipment Equipment Co., LTD
Place 06205, Unit A, No 2 Constructing, CZPT third Highway, Complete Cost-free Trade Zone, NMRV Worm Gear Reducer NMRV030 NMRV040 NMRV050 NMRV063 Worm Gearbox for NEMA Stepper motors and Servo Motors HangZhou Metropolis, ZheJiang Province

What to Look For When Buying an Air Compressor

Single-stage air compressors are quieter

Two-stage air compressors are more energy efficient

Piston-driven air compressors are quieter

Oil-lubricated air compressors are more cost-effective

China Wholesale to B rotary screw compressor single phase screw compressors 10 hp 5kw screw air compressor with dryer 12v air compressor
editor by czh 2023-02-20

China Used Movable AC Car Oil Direct Driven Piston Fuel Screw Rotary High Pressure Portable Air Pump Compressor wholesaler

Product Description

Energy:	2000w	Voltage:	220V
Exhaust Force:	.8Mpa	Existing:	7.5A
Frequency:	50HZ	Revolving Pace:	2850rpm
Quantity of Fuel Storage Tank:	35L	Cylinder:	1x47mm

Scope of application:
Employing for Pushing Pneumatic Nail Gun, Air Screw , Spray Portray Gun to function, also use to miniature instrument, blowing dust, Air inflation for small vehicle and so on.
Product Function:

Substantial Power, higher effectiveness, reduced power, large trustworthiness.
Piston Ring: New ECO circle, low friction coefficient, Car lubricating technique.
Cylinder Liner: Area hardening, deplete hardness, Speed up the warmth transfer, long making use of time.
Suction and exhaust valve: Using innovative international technology.
Several Strain: Overload protection

Lubrication Style:	Oil-free
Cooling System:	Air Cooling
Cylinder Arrangement:	Duplex Arrangement
Cylinder Position:	Vertical
Structure Type:	Open Type
Compress Level:	Double-Stage

###

Samples:	US$ 80/Piece 1 Piece(Min.Order) \| Request Sample

###

Customization:	Available \| Customized Request

###

Power:	2000w	Voltage:	220V
Exhaust Pressure:	0.8Mpa	Current:	7.5A
Frequency:	50HZ	Revolving Speed:	2850rpm
Volume of Gas Storage Tank:	35L	Cylinder:	1x47mm

Lubrication Style:	Oil-free
Cooling System:	Air Cooling
Cylinder Arrangement:	Duplex Arrangement
Cylinder Position:	Vertical
Structure Type:	Open Type
Compress Level:	Double-Stage

###

Samples:	US$ 80/Piece 1 Piece(Min.Order) \| Request Sample

###

Customization:	Available \| Customized Request

###

Power:	2000w	Voltage:	220V
Exhaust Pressure:	0.8Mpa	Current:	7.5A
Frequency:	50HZ	Revolving Speed:	2850rpm
Volume of Gas Storage Tank:	35L	Cylinder:	1x47mm

What to Look For When Buying an Air Compressor

Single-stage air compressors are quieter

Two-stage air compressors are more energy efficient

Piston-driven air compressors are quieter

Oil-lubricated air compressors are more cost-effective

China Used Movable AC Car Oil Direct Driven Piston Fuel Screw Rotary High Pressure Portable Air Pump Compressor wholesaler
editor by czh 2023-01-28

Product Description

Can air compressors be used for shipbuilding and maritime applications?

How do you maintain proper air quality in compressed air systems?

What are the different types of air compressors?

Product Description

DENAIR Exhibitions: DENAIR Global Customers: Water-lubricated Oil-free Screw Air Compressor Packaging:

What are the advantages of using an air compressor in construction?

How are air compressors employed in the mining industry?

What are the safety considerations when operating an air compressor?

Product Description

What role do air dryers play in compressed air systems?

Are there differences between single-stage and two-stage air compressors?

What maintenance is required for air compressors?

Product Description

What to Look For When Buying an Air Compressor

Single-stage air compressors are quieter

Two-stage air compressors are more energy efficient

Piston-driven air compressors are quieter

Oil-lubricated air compressors are more cost-effective

Product Description

How to Choose the Right Air Compressor

Electric motor

Oil bath

Start/stop control

Variable speed drive

Choosing the Right Air Compressor For Your Home

Positive displacement

Oil-free

Single-stage

CFM

PSI

Power source

Product Description

Choosing an Air Compressor

Positive displacement

Oil-injected

Oil-free

Single-stage

Low-noise

Product Description

The Air Compressor Is a Versatile Tool

Oil-injected

Oil-free

Gasoline

Electricity

Variable frequency drive

What to Look For When Buying an Air Compressor

Single-stage air compressors are quieter

Two-stage air compressors are more energy efficient

Piston-driven air compressors are quieter

Oil-lubricated air compressors are more cost-effective

Product Description

What to Look For When Buying an Air Compressor

Single-stage air compressors are quieter

Two-stage air compressors are more energy efficient

Piston-driven air compressors are quieter

Oil-lubricated air compressors are more cost-effective

DENAIR Exhibitions:

DENAIR Global Customers:

Water-lubricated Oil-free Screw Air Compressor Packaging: