China factory 30nm3/H 200bar Oil-Free Piston Compressor for Oxygen Nitrogen Cylinder Filling Factory Price with Great quality

Product Description

High Quality Oil-free Oxygen Nitrogen Gas Compressors

Minwen high pressure industrial gas compressor belongs to oil-free reciprocating piston type construction. It is divided into three-stage, four-stage or five-stage compression according to the displacement and pressure. It is divided into air-cooled type and water-cooled type according to the cooling type.


An oil-free compressor is a type of gas compressor that operates without the need for lubricating oil in the compression chamber. Traditional gas compressors use oil to lubricate the moving parts and provide a better seal between the compression chamber and the piston or rotor. However, in certain applications where oil contamination is a concern, such as medical and dental facilities, food processing, electronics manufacturing, and painting, oil-free compressors are preferred.

There is no lubricating oil inside the gas compressors, grease lubricated sealing type bearing is adopted for the rotary moving components, the moving seals inside the cylinder are made of self-lubricating material so as to ensure that the compressed gas will never contact any oil. 

The machine adopts automatic control mode with low leakage and noise and without the need to arrange dedicated person for attention, and can operate over long term reliably. 



Our Advantages

1. Oil-Free Gas: They deliver high-quality, oil-free compressed gases, which is essential in applications where oil contamination can be detrimental to the end product or process.

2. Reduced Maintenance: Oil-free compressors eliminate the need for oil changes, filter replacements, and oil disposal, resulting in lower maintenance requirements and costs.

3. Environmental Friendliness: The absence of oil reduces the risk of oil leaks or spills, making oil-free compressors environmentally friendly.

4. Improved gas Quality: Oil-free compressors provide cleaner gases, free from oil aerosols or vapors, which is essential in sensitive applications like medical and dental procedures or electronics manufacturing.


Product Parameters

Model Inlet pressure
Outlet pressure
WWY-(1- 5)/4-150/200 4.0 150/ 200 5 4.0 Rc1/2 G5/8 1350 *850 *1100 380 470
WWY- 10/4-150/200 4.0 150/ 200 10 5.5 Rc1/2 G5/8 1350 *1050 *1100 410 470
WWY- 15/4-150/200 4.0 150/ 200 15 7.5 Rc1/2 G5/8 1350 *1050 *1100 420 640
WWY-20/4-150/200 4.0 150/ 200 20 11 Rc1/2 G5/8 1350 *1050 *1100 430 580
WWY-25/4-150/200 4.0 150/ 200 25 11 Rc1/2 G5/8 1350 *1050 *1100 430 640
WWY-30/4-150/200 4.0 150/ 200 30 15 Rc1/2 G5/8 1350 *1050 *1100 450 470
WWY-35/4-150/200 4.0 150/ 200 35 15 Rc1/2 G5/8 1350 *1050 *1100 450 470
WWY-40/4-150/200 4.0 150/ 200 40 15 Rc1/2 G5/8 1350 *1050 *1100 450 580
SWY- 45/4-150/200 4.0 150/ 200 45 18.5 Rc1 G5/8 1450 *1100 *1250 520 580
SWY- 50/4-150/200 4.0 150/ 200 50 18.5 Rc1 G5/8 1450 *1100 *1250 520 580
SWY- 55/4-150/200 4.0 150/ 200 55 18.5 Rc1 G5/8 1450 *1100 *1250 520 580
SWY- 60/4-150/200 4.0 150/ 200 60 22 Rc1 G5/8 1450 *1100 *1250 540 640
SWY- 65/4-150/200 4.0 150/ 200 65 22 Rc1 G5/8 1450 *1100 *1250 540 720
SWY- 70/4-150/200 4.0 150/ 200 70 22 Rc1 G5/8 1450 *1100 *1250 540 720
SWY-75/4-150/200 4.0 150/ 200 75 22 Rc1 G5/8 1450*1100*1250 540 720

Notes: More specification are available based on clients special requirement.


Company Profile

HangZhou Minwen Cryogenic Equipment Co., Ltd. is an established company specializing in industrial gas equipment and cryogenic solutions. With stable economy development in China, Minwen constantly strengthens its supply chain capabilities and resource integration capabilities. We are always on the way of promoting the efficiency and competitiveness, to guarantee high-quality performance of our services. 

With advanced technologies and strict quality management, our products have passed the major international third-party quality control certifications such as ASME, CE, and Famous classification society such like BV, TUV, Lloyds and etc.

At Minwen, we pride ourselves on building long-lasting relationships with our clients. We will work with you every step of the way to ensure that your needs are met and your expectations are exceeded. We are committed to providing you with the best price and service we can offer, and we are confident in our ability to deliver top-quality solutions that cater to your specific set of requirements. 




1. Which countries you can ship the equipment to? 
We ship to worldwide, such as Russia, Paraguay, Brazil, Colombia, Indonesia, Middle East, Africa, etc. 

2. May I have the best price from you?
Sure. We are always on the way of promoting our competitiveness on products price and service.

3. Is your equipment quality good?
Yes. With advanced technologies and strict quality management, our products have passed the major international third-party quality control certifications such as ASME, CE, and Famous classification society such like BV, TUV, Lloyds

4. Do you provide one-stop service so I can save my time and labor?
Yes. Minwen constantly strengthens its supply chain capabilities and resource integration capabilities. You will own a professional team in China by cooperating with Minwen.

5. Where is your company located?
Our Export Office is located in HangZhou, with associated factories across China. This helps our international clients to integrate all the high quality resources together with Minwen.

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After-sales Service: Lifetime Aftersales Service
Warranty: Lifetime Aftersales Service
Lubrication Style: Oil-free
Cooling System: Water/ Air Cooling
Cylinder Arrangement: Balanced Opposed Arrangement
Cylinder Position: Vertical


air compressor

Can Gas Air Compressors Be Used for Well Drilling?

Gas air compressors can be used for well drilling, and they are commonly employed in drilling operations. Here’s a detailed explanation:

1. Air Drilling Method:

Gas air compressors are often utilized in the air drilling method, also known as pneumatic drilling. In this drilling technique, compressed air is used to create a high-velocity airflow that carries the drill cuttings to the surface. The high-pressure air also aids in cooling the drill bit and providing additional force for efficient drilling.

2. Benefits of Gas Air Compressors:

Gas air compressors offer several advantages for well drilling:

  • Portability: Gas air compressors can be easily transported to remote drilling sites, allowing for flexibility in well location.
  • Power: Gas air compressors provide high-pressure air output, which is essential for effective drilling in various geological formations.
  • Cost-Effectiveness: Gas air compressors can be more cost-effective compared to other drilling methods, as they eliminate the need for drilling mud and associated disposal costs.
  • Environmental Considerations: Air drilling with gas compressors produces minimal waste and does not require the use of potentially harmful drilling fluids, making it an environmentally friendly option.

3. Compressor Selection:

When selecting a gas air compressor for well drilling, several factors should be considered:

  • Pressure and Flow Requirements: Evaluate the pressure and flow requirements of the drilling operation to ensure that the gas air compressor can deliver the necessary air output.
  • Compressor Size and Power: Choose a compressor with adequate size and power output to match the drilling demands. Factors such as borehole depth, drill bit type, and drilling speed will influence the compressor’s power requirements.
  • Portability: Consider the portability features of the gas air compressor, such as its weight, dimensions, and mobility options, to facilitate transportation to drilling sites.

4. Safety Considerations:

It is essential to follow safety guidelines when using gas air compressors for well drilling. These may include proper ventilation to prevent the accumulation of exhaust fumes, adherence to equipment operating limits, and the use of personal protective equipment (PPE) for drilling personnel.

5. Other Considerations:

While gas air compressors are commonly used for well drilling, it is worth noting that the suitability of a gas air compressor for a specific drilling project depends on various factors such as geological conditions, well depth, and drilling objectives. It is recommended to consult with drilling experts and professionals to determine the most suitable drilling method and equipment for a particular project.

In summary, gas air compressors can be effectively used for well drilling, particularly in the air drilling method. They offer portability, power, cost-effectiveness, and environmental advantages. Proper selection, considering pressure and flow requirements, as well as safety precautions, is crucial to ensure successful and safe drilling operations.

air compressor

How Do Gas Air Compressors Contribute to Energy Savings?

Gas air compressors can contribute to energy savings in several ways. Here’s a detailed explanation:

1. Efficient Power Source:

Gas air compressors are often powered by gasoline or diesel engines. Compared to electric compressors, gas-powered compressors can provide higher power output for a given size, resulting in more efficient compression of air. This efficiency can lead to energy savings, especially in applications where a significant amount of compressed air is required.

2. Reduced Electricity Consumption:

Gas air compressors, as standalone units that don’t rely on electrical power, can help reduce electricity consumption. In situations where the availability of electricity is limited or expensive, using gas air compressors can be a cost-effective alternative. By utilizing fuel-based power sources, gas air compressors can operate independently from the electrical grid and reduce dependence on electricity.

3. Demand-Sensitive Operation:

Gas air compressors can be designed to operate on demand, meaning they start and stop automatically based on the air requirements. This feature helps prevent unnecessary energy consumption during periods of low or no compressed air demand. By avoiding continuous operation, gas air compressors can optimize energy usage and contribute to energy savings.

4. Energy Recovery:

Some gas air compressors are equipped with energy recovery systems. These systems capture and utilize the heat generated during the compression process, which would otherwise be wasted. The recovered heat can be redirected and used for various purposes, such as space heating, water heating, or preheating compressed air. This energy recovery capability improves overall energy efficiency and reduces energy waste.

5. Proper Sizing and System Design:

Selecting the appropriate size and capacity of a gas air compressor is crucial for energy savings. Over-sizing a compressor can lead to excessive energy consumption, while under-sizing can result in inefficient operation and increased energy usage. Properly sizing the compressor based on the specific air demands ensures optimal efficiency and energy savings.

6. Regular Maintenance:

Maintaining gas air compressors in good working condition is essential for energy efficiency. Regular maintenance, including cleaning or replacing air filters, checking and repairing leaks, and ensuring proper lubrication, helps optimize compressor performance. Well-maintained compressors operate more efficiently, consume less energy, and contribute to energy savings.

7. System Optimization:

For larger compressed air systems that involve multiple compressors, implementing system optimization strategies can further enhance energy savings. This may include employing advanced control systems, such as variable speed drives or sequencers, to match compressed air supply with demand, minimizing unnecessary energy usage.

In summary, gas air compressors contribute to energy savings through their efficient power sources, reduced electricity consumption, demand-sensitive operation, energy recovery systems, proper sizing and system design, regular maintenance, and system optimization measures. By utilizing gas-powered compressors and implementing energy-efficient practices, businesses and industries can achieve significant energy savings in their compressed air systems.

air compressor

What Is a Gas Air Compressor?

A gas air compressor is a type of air compressor that is powered by a gas engine instead of an electric motor. It uses a combustion engine, typically fueled by gasoline or diesel, to convert fuel energy into mechanical energy, which is then used to compress air. Here’s a detailed explanation of a gas air compressor:

1. Power Source:

A gas air compressor utilizes a gas engine as its power source. The engine can be fueled by gasoline, diesel, or other types of combustible gases, such as natural gas or propane. The combustion engine drives the compressor pump to draw in air and compress it to a higher pressure.

2. Portable and Versatile:

Gas air compressors are often designed to be portable and versatile. The gas engine provides mobility, allowing the compressor to be easily transported and used in different locations, including remote job sites or areas without access to electricity. This makes gas air compressors suitable for applications such as construction projects, outdoor activities, and mobile service operations.

3. Compressor Pump:

The compressor pump in a gas air compressor is responsible for drawing in air and compressing it. The pump can be of various types, including reciprocating, rotary screw, or centrifugal, depending on the specific design of the gas air compressor. The pump’s role is to increase the pressure of the incoming air, resulting in compressed air that can be used for various applications.

4. Pressure Regulation:

Gas air compressors typically feature pressure regulation mechanisms to control the output pressure of the compressed air. This allows users to adjust the pressure according to the requirements of the specific application. The pressure regulation system may include pressure gauges, regulators, and safety valves to ensure safe and reliable operation.

5. Applications:

Gas air compressors find applications in a wide range of industries and activities. They are commonly used in construction sites for powering pneumatic tools such as jackhammers, nail guns, and impact wrenches. Gas air compressors are also utilized in agriculture for operating air-powered machinery like sprayers and pneumatic seeders. Additionally, they are employed in recreational activities such as inflating tires, sports equipment, or inflatable structures.

6. Maintenance and Fuel Considerations:

Gas air compressors require regular maintenance, including engine servicing, oil changes, and filter replacements, to ensure optimal performance and longevity. The type of fuel used in the gas engine also needs to be considered. Gasoline-powered compressors are commonly used in smaller applications, while diesel-powered compressors are preferred for heavy-duty and continuous operation due to their higher fuel efficiency and durability.

Overall, a gas air compressor is an air compressor that is powered by a gas engine, offering mobility and versatility. It provides compressed air for various applications and is commonly used in construction, agriculture, and outdoor activities. Regular maintenance and fuel considerations are essential to ensure reliable operation and optimal performance.

China factory 30nm3/H 200bar Oil-Free Piston Compressor for Oxygen Nitrogen Cylinder Filling Factory Price   with Great qualityChina factory 30nm3/H 200bar Oil-Free Piston Compressor for Oxygen Nitrogen Cylinder Filling Factory Price   with Great quality
editor by CX 2024-04-09

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