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Oil-Free Lubrication
Oxygen Compressor

Undertake design and selection of various gas compressors,
can be customized according to your needs

OIL-FREE OXYGEN COMPRESSOR SERIES

All oil-free compressors do not need to add lubricating oil, the discharged gas does not contain oil and oil vapor, and does not pollute the end products of users. it is an environmentally friendly and energy-saving product. when used as a general power source, it is more convenient to use than oil-based compressors. low maintenance costs. as the simple stand most ideal equipment to provide high-quality oil-free compressed gas, it saves complicated oil filtering and processing equipment saving a lot of equipment expenses and maintenance costs.

This series compressor is widely used in air separation oxygen plant, oxygen circulation system, medical oxygen supply center, industrial combustion cutting and other oxygen industry.

 

Product Types

Completely oil-free, silent operating ,noise less than 75dB, can work silently in the medical station area,low speed, long service life.

Medium and low pressure oxygen compressor with full oil-free lubrication series

Full oil-free lubrication of high pressure oxygen compressor series

The Advantages of an Oil-Free Oxygen Compressor

  • The entire compression system is oil-free, avoiding the possibility of oil coming into contact with high-pressure, high-purity oxygen, ensuring equipment safety.
  • The whole system does not require lubricating oil or an oil distribution system, resulting in a simpler machine structure that is easy to control and operate.
  • The system is completely oil-free, so the oxygen being compressed is free of contamination, maintaining consistent purity at both the intake and exhaust ports of the compressor.
  • Equipped with multi-stage compression, each stage includes high-pressure protection, high exhaust temperature protection, a safety valve, and a temperature display device. If the temperature becomes too high or there is an overpressure condition, the system will issue an alarm and stop operation to ensure safe operation. The bottom of the compressor is fitted with forklift slots for easy transportation.
  • Our standard high-pressure oxygen compressors are CE-certified by the European Union, meeting the requirements of the EU market.

The Feature of an Oil-Free Oxygen Compressor

  • No oil, stainless steel cylinder.
  • Suitable for pressurization of VPSA PSA oxygen source.
  • No pollution, keep the purity of gas unchanged.
  • Safe and reliable quality, good stability, comparable to and replace similar foreign brands.
  • Low procurement cost, low maintenance cost, simple operation.
  • The service life of the piston ring under low pressure conditions is 4000 hours, and the service life of the piston ring under high pressure conditions is 1500-200O hours.
  • Brand motor, you can specify the brand, such as Siemens or ABB brand.
  • Supply to the Japanese market to meet the strict quality requirements of Japan.
  • According to the specific working conditions of customers, the compressor is designed for single-stage compression, two-stage compression, three-stage compression and four-stage compression.
  • Low speed, long life, average speed 260-400RPM.
  • Low noise, the average noise is less than 75dB, can work quietly in the medical field.
  • Continuous continuous heavy operation, can run stably for 24 hours without stopping (depending on the specific model).

Medium and low pressure oxygen compressor with full oil-free lubrication series

Model Volume flow
Inlet pressure
Exhaust pressure
Power
Length × Width × Height Weight
Interface size
Nm³/h MPa(G) Mpa(G) KW mm kg RC
MN-5/4-10 5 0.4 1.0 1.5 860×830×1000 90 1/2
MN-10/4-10 10 0.4 1.0 2.2 860×830×1000 100 1
MN-15/4-10 15 0.4 1.0 2.2 860×830×1000 110 1
MN-20/4-10 20 0.4 1.0 3.0 860×830×1000 120 1
MN-25/4-10 25 0.4 1.0 3.0 860×830×1000 120 1
MN-30/4-10 30 0.4 1.0 3.0 860×830×1000 120 1
MN-40/4-10 40 0.4 1.0 4.0 1100×830×850 245 1
MN-50/4-10 50 0.4 1.0 4.0 1100×830×850 245 1
MN-60/4-10 60 0.4 1.0 5.5 1200×650×800 255 11/2
MN-70/4-10 70 0.4 1.0 5.5 1200×650×800 302 11/2
MN-90/4-10 90 0.4 1.0 7.5 1400×1100×1100 302 11/2,1
MN-120/4-10 120 0.4 1.0 11 1400×1100×1100 352 11/2,1
MN-12/0-6 12 0-0.5 0.6 2.2 1100×830×750 200 1,1
MN-30/0-6 30 0-0.5 0.6 5.5 1200×950×750 270 11/2,1
MN-60/0-6 60 0-0.5 0.6 11 1650×850×950 380 11/2,1
MN-90/0-6 90 0-0.5 0.6 15 1650×850×950 420 2,11/2
MN-120/0-6 120 0-0.5 0.6 18.5 1870×1000×1000 540 2,11/2


Full oil-free lubrication of high pressure oxygen compressor

Model Volume flow
Inlet pressure
Exhaust pressure
Power
Dimension
length × width × height
Export packaging dimensions
length × width × height
Inlet and outlet welded
pipe outer diameter
Inlet and outlet
Net Weight
Gross Weight
Nm³/h Mpa(G) Mpa(G) KW mm mm mm mm Kg Kg
MN-3/4-150 3 0.4 15.0 3.0 920×820×1100 1120×1020×1300 20、12 / 240 280
MN-5/4-150 5 0.4 15.0 4.0 920×820××1100 1120×1020×1300 20、12 240 280
MN-10/4-150 10 0.4 15.0 5.5 1250×920×1000 1450×1120×1200 25、12 330 380
MN-12/4-150 12 0.4 15.0 7.5 1250×920×1000 1450×1120×1200 25、12 360 410
MN-15/4-150 15 0.4 15.0 11.0 1350×1020×1000 1550×1220×1200 25、12 400 450
MN-20/4-150 20 0.4 15.0 11.0 1350×1020×1000 1550×1220×1200 25、12 400 450
MN-30/4-150 30 0.4 15.0 15.0 1350×1020×1000 1550×1220×1200 32、12 420 470
MN-30/4-150 30 0.4 15.0 15.0 1250×870×1700 1450×1070×1900 32、12 660 750
MN-20/4-150* 20 0.4 15.0 7.5 1350×1020×1000 1550×1220×1200 32、12 RC1/2 380 430
MN-25/4-150* 25 0.4 15.0 11.0 1350×1020×1000 1550×1220×1200 32、12 RC1/2 420 470
MN-30/4-150* 30 0.4 15.0 11.0 1350×1020×1000 1550×1220×1200 32、12 RC1/2 430 480
MN-40/4-150* 40 0.4 15.0 15 1580×1080×1200 1780×1280×1400 32、16 RC1 510 580
MN-50/4-150* 50 0.4 15.0 15.0 1580×1080×1200 1780×1280×1400 32、16 RC1 520 590
MN-65/4-150* 65 0.4 15.0 22.0 1750×1200×1250 1950×1400×1450 45、16 RC1 620 710
MN-90/4-150-II* 90 0.4 15.0 15×2 2450×1800×1300 2650×2000×1500 57、25 RC11/2 1120 1260
MN-100/4-150* 100 0.4 15.0 30 2000×1800×1650 2200×2000×1850 57、25 RC11/2 1600 1800
MN-200/4-150-II* 200 0.4 15.0 30×2 3600×2200×1650 3800×2400×1850 57、36 RC2 3600 4000
MN-3/4-200 3 0.4 20.0 4.0 1250×920×1000 1450×1120×1200 20、12 / 310 360
MN-5/4-200 5 0.4 20.0 4.0 1250×920×1000 1450×1120×1200 20、12 330 380
MN-10/4-200 10 0.4 20.0 5.5 1250×920×1000 1450×1120×1200 25、12 330 380
MN-12/4-200 12 0.4 20.0 7.5 1250×920×1000 1450×1120×1200 25、12 360 410
MN-15/4-200 15 0.4 20.0 11.0 1350×1020×1000 1550×1220×1200 25、12 400 450
MN-20/4-200 20 0.4 20.0 11.0 1350×1020×1000 1550×1220×1200 25、12 400 450
MN-25/4-200 25 0.4 20.0 15.0 1350×1020×1000 1550×1220×1200 32、12 420 470
MN-30/4-200 30 0.4 20.0 15.0 1250×870×1700 1450×1070×1900 32、12 660 750
MN-20/4-200* 20 0.4 20.0 11.0 1350×1020×1000 1550×1220×1200 32、12 RC1/2 420 470
MN-25/4-200* 25 0.4 20.0 11.0 1350×1020×1000 1550×1220×1200 32、12 RC1/2 460 510
MN-30/4-200* 30 0.4 20.0 15.0 1580×1080×1200 1780×1280×1400 32、16 RC1 510 580
MN-40/4-200* 40 0.4 20.0 19 1580×1080×1200 1780×1280×1400 32、16 RC1 550 620
MN-50/4-200* 50 0.4 20.0 18.5 1580×1080×1200 1780×1280×1400 32、16 RC1 550 620
MN-65/4-200* 65 0.4 20.0 22.0 1750×1200×1250 1950×1400×1450 45、16 RC1 620 710
MN-90/4-200-II* 90 0.4 20.0 18.5×2 2450×1800×1300 2650×2000×1500 57、25 RC11/2 1200 1340
MN-100/4-200* 100 0.4 20.0 30 2000×1800×1650 2200×2000×1850 57、25 RC11/2 1600 1800
MN-200/4-200-II* 200 0.4 20.0 30×2 3600×2200×1650 3800×2400×1850 57、36 RC2 3600 4000
Note: Models marked with * are water-cooled.

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Frequent Asked Question

 As a professional manufacturer of oil-free oxygen compressors, the equipment we offer is significantly different from traditional oil-lubricated compressors. Traditional oil-lubricated compressors rely on lubricating oil to reduce internal friction, which can lead to oil contamination in the exhaust gas, compromising the purity of the oxygen. Additionally, they increase maintenance complexity and costs. In contrast, our oil-free compressors feature a completely oil-free design, ensuring no oil or oil vapors in the exhaust, preventing any oil contamination, and guaranteeing oxygen purity. This makes them particularly suitable for medical and high-precision industrial applications. Moreover, without an oil system, maintenance is simplified, significantly reducing operational costs.

Our oil-free oxygen compressors are designed to eliminate the use of oil, reducing the maintenance burden typical of traditional oil-lubricated systems. However, regular maintenance is still essential, including:

  • Air filters: Regularly check and replace the filter elements to ensure clean air intake.
  • Cooling system: Whether air-cooled or water-cooled, regularly check the cooling efficiency to prevent overheating.
  • Moving parts: Periodically inspect the wear on piston rings and seals to ensure smooth operation.
  • Pressure and temperature checks: Ensure the equipment operates within the recommended pressure and temperature ranges to avoid damage from excessive pressure or heat. These simple maintenance steps can effectively extend the equipment’s lifespan and maintain efficient, stable operation.

Our oil-free oxygen compressors are highly adaptable and perform excellently in the following environments:

  • Moist environments: The oil-free design prevents performance degradation caused by oil emulsification in traditional compressors.
  • Dusty environments: The sealed structure of the equipment reduces the impact of external dust, ensuring stable operation.
  • High-purity gas requirements: Ideal for industries with strict oxygen purity standards, such as medical oxygen supply systems and electronics manufacturing, preventing oil contamination and ensuring gas quality. We offer tailored solutions based on specific customer needs to ensure the equipment performs optimally in different work environments.
    • Oxygen demand (flow rate): Please provide the required oxygen flow rate (unit: Nm³/h or L/min). This helps us determine the compressor specifications needed to meet your requirements.
    • Operating pressure: Based on your application, specify the required working pressure (unit: bar), e.g., 5-10 bar for medical applications, 150 bar or higher for industrial use. This information allows us to recommend the most suitable compressor model.
    • Working environment: Provide details on environmental temperature (unit: °C), humidity (unit: % RH), and air quality. For harsh environments (e.g., high humidity or dust), we can customize additional features like dust proof or corrosion-resistant options.
    • Power requirements: Please provide local voltage (unit: V), current (unit: A), and frequency (unit: Hz). We will match the appropriate motor and drive system based on your power standards.
    • Special requirements: If you have specific needs such as low noise (unit: dB), explosion-proof features, or industry certifications (e.g., ISO, CE), please inform us for customized design.

    Simply provide this information, and we will quickly design the most suitable oil-free oxygen compressor solution, ensuring optimal performance and stable operation.

  • Under proper working conditions and regular maintenance, our oil-free oxygen compressors have a long service life:

    • At low-pressure conditions, piston rings can last up to 4000 hours.
    • At high-pressure conditions, piston rings typically last 1500-2000 hours, depending on load and operating environment. To extend the lifespan, we recommend regularly checking the cooling system, lubricating system (if using water or air cooling), and seals, and replacing worn parts in a timely manner. Our products are designed for long-term durability, helping minimize downtime and maintenance costs.

Safety is a top priority in the design of our oil-free oxygen compressors. The equipment is equipped with multiple safety features to ensure safe operation in high-pressure, high-temperature environments:

  • High-pressure protection: Each stage is equipped with high-pressure protection devices to prevent system over pressure.
  • Temperature protection: Temperature sensors monitor the operational state; if the temperature exceeds safe limits, protective measures will be triggered to avoid damage.
  • Safety valve: The safety valve automatically vents the system when pressure becomes too high, preventing over pressure damage.
  • Automatic alarm system: If an anomaly occurs, the system will automatically issue an alarm and shut down, ensuring the safety of both the equipment and operators.

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