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Oil Free 4-Stage Oxygen Compressor


Our company is a leading provider of oil-free gas compressor system solutions in China, and a professional high-tech enterprise that develops and produces oil-free compressors. The company has a complete marketing service system and strong continuous research and development capabilities. The products cover all oil-free lubrication. Air compressors, oxygen compressors, nitrogen compressors, hydrogen compressors, carbon dioxide compressors, helium compressors, argon compressors, sulfur hexafluoride compressors and more than 30 kinds of gas chemical compressors, the maximum pressure can reach 35Mpa, products are widely used in petrochemicals, textiles, food, medicine, electric power, machinery, metallurgy, home appliances, environmental protection and many other fields. At present, many wind brand oil-free compressors produced by our company ,and  have been exported to Europe, America, Japan, South Korea, Southeast Asia , More than 40 countries and regions in the Middle East and Africa, and our products have been won wide praise from many customers, and established a good reputation of quality in the hearts of users.

Oxygen compressor refers to a compressor used to pressurize oxygen and realize transportation or storage.

There are two types of commonly used medical oxygen compressors. One is that the PSA oxygen generator in the hospital needs to be pressurized to supply various wards and operating rooms. It provides a pipeline pressure of 7-10 kg. The oxygen from a PSA needs to be stored in a high-pressure container for convenient use. The storage pressure is usually 100 barg, 150 barg, 200 barg or 300 barg pressure.

Industrial applications of oxygen compressors include the pressurization of low-pressure oxygen for VSA applications in steel mills, paper mills and water treatment plants

The oil-free oxygen bottle filling compression is divided into two cooling methods, air-cooled and water-cooled. Vertical structure. Our company’s series of high-pressure oil-free lubricated oxygen compressors have excellent performance, stable operation, high efficiency and energy saving, long service life, and are widely used. With oxygen, chemical technology and high-altitude oxygen supply, together with an oxygen generator, a simple and safe high-pressure oxygen system is formed.

For oil-free oxygen compressors, friction seals such as piston rings and guide rings are made of special materials with self-lubricating properties.

Structural advantages are reflected in:

1. The entire compression system has no thin oil lubrication, which avoids the possibility of oil contacting high-pressure and high-purity oxygen and ensures the safety of the machine;

2. The whole system has no lubrication and oil distribution system, the machine structure is simple, the control is convenient, and the operation is convenient;

3. The whole system is oil-free, so the compressed medium oxygen is pollution-free, and the purity of the oxygen at the inlet and outlet of the compressor is the same.


The gas cylinder filling oxygen compressor is suitable for inlet pressure 3-4barg (40-60psig) and exhaust pressure 150barg (2150psig)

The 15NM3-60NM3/hour small PSA oxygen generation system provides clean oxygen filling services for the oxygen supply of communities and small island hospitals, and industrial oxygen cutting. It can run continuously for 24 hours, and it can reach more than 20 bottles each time.

Features of this compressor

Four-stage compression is adopted. The water-cooled model uses a stainless steel water cooler to ensure a good cooling effect of the compressor and effectively extend the service life of key wearing parts. The intake port is equipped with a low intake pressure, and the exhaust end is equipped with an exhaust device. Each level of high pressure protection, high exhaust temperature protection, safety valve and temperature display. If the temperature is too high and overpressure, the system will alarm and stop to ensure safe operation. There is a forklift at the bottom of the compressor, which can be easily transferred to the site.


Our standard high-pressure oxygen compressor has passed the EU CE certification and meets the requirements of the EU market.

We can also provide customized oxygen compressors according to customer conditions.

Our oxygen compressor has the following characteristics

1. Completely 100% oil-free, no oil required, stainless steel cylinder

2. Suitable for VPSA PSA oxygen source pressurization

3. No pollution, keep the gas purity unchanged

4. The quality is safe and reliable, with good stability, comparable to and replacing similar foreign brands.

5. Low purchase cost, low maintenance cost and simple operation.

6. The service life of the piston ring under low pressure condition is 4000 hours, and the service life of piston ring under high pressure condition is 1500-200 hours

7. Brand motor, you can specify the brand, such as Siemens or ABB brand

8. Supply the Japanese market to meet Japan’s demanding quality requirements

9. According to the customer’s specific working conditions, the compressor is designed for single-stage compression, two-stage compression, three-stage compression and four-stage compression.

10. Low speed, long life, average speed 260-400RPM,

11. Low noise, average noise is less than 75dB, can work quietly in the medical field

12. Continuous continuous heavy-duty operation, stable operation for 24 hours without shutdown (depending on the specific model)


Post time: Dec-23-2021