CMN250PV Micro Oil Screw Air Compressor Permanent Magnet Variable Frequency

CMN250PV Micro Oil Screw Air Compressor Permanent Magnet Variable Frequency

Advantages of our micro oil air compressor

• Shaftless Design, Durable and Robust

  Our innovative shaftless design eliminates the need for periodical changes and increases the lifespan of the compressor. This design never wears out and never comes into contact, solving the problem of regular shaft seal replacement and extending the life of the shaft seal to infinity.

• Low Energy Consumption

  By adopting the world's largest screw design and a twin pressure chamber host, the screw turns one circle and one spiral chamber compresses twice, six spiral chambers compress 12 times, and the volumetric efficiency is more than 95%. Our air compressor truly embodies the concept of energy-saving.

• High Temperature Resistance

  It can adapt to various harsh environmental conditions, with an operating temperature range from -20 to 55 degrees Celsius. The continuous working temperature does not exceed 92 degrees, ensuring the equipment can operate normally under any circumstances.

• Low Oil Content

  The highly efficient host only requires a small amount of air compressor oil to achieve excellent sealing effect. The oil content in the produced air is less than 2ppm, ensuring the air quality throughout the operation.

Structural Features of our Micro Oil Air Compressor

• Patented Ultra-Silent Intake System Design

  Our patented design ensures the compressor operates at reduced noise levels, providing a quiet and efficient working environment.

• High-Quality Safety Valve and Minimum Pressure Valve

  These high-quality valves are critical for the safe and efficient operation of the air compressor, preventing overpressure situations and ensuring optimal performance.

• Precision Temperature Sensor

  This feature allows for accurate monitoring of internal temperatures, ensuring optimal performance and longevity of the compressor.

• Ultra-Silent Centrifugal Fan

  This fan design provides excellent cooling capabilities while maintaining a quiet operation.

• Japanese SMC Electromagnetic Control Valve

  This high-quality component ensures reliable and precise control over the compressor operation.


• Patented Control Valve by CMN

  Our patented control valve design ensures efficient and reliable operation of the compressor.

• High-Quality Touch Screen Control System

  This feature allows for easy and intuitive control over the compressor's operation and settings.

Principle of Compressed Air in our Micro Oil Screw Air Compressor

Our Micro Oil Screw Air Compressor employs a pair of main screws, the air pressure screw, and the rotating screw, to execute the compression process. These screws, typically made of high-strength alloy steel, have precise helical shapes. During the intake process, the helical shape of the air pressure screw and the rotating screw forms a sealed working chamber between them. As the screws rotate, the working chamber gradually expands, causing external air to enter the working chamber through the intake port. Once the air enters the working chamber, the rotation of the screws causes the working chamber to progressively shrink. This shrinking gradually increases the compression ratio of the air, thereby boosting the air pressure. Throughout this process, the air is compressed and pushed towards the machine's outlet. Compressed air generates heat during the compression process, thus requiring a cooling system to lower the temperature. Additionally, to ensure air quality, the compressed air needs to be cleaned through a filter system to eliminate potential pollutants and particles.

Applications of our Micro Oil air compressor

• Textile Industry

  Many locations in the textile industry require the use of oil-free, micro-oil low-pressure compressed air.

• Glass Bottle Industry

  Various types of glass bottles rely on low-pressure screw compressed air for molding, which not only saves energy but also creates perfect shapes.

• Chemical Industry

  Some processes in the chemical industry, such as pressure filtration and transportation, require compressed air.

• Cement Transport

  During the cement transportation process, compressed air can not only complete the transportation but also prevent the cement from flying around.

About Our Company

Our company's full range of products has passed the German TUV class 0 oil-free certification, CE certification, ISO9001 certification, TS16949 certification. We are the first domestic company to use water for internal cooling and lubrication of high-end screw compressors. We have also pioneered the second-stage compression high-pressure micro-oil screw compressor, reaching 4.0MPa pressure globally. We have subsequently developed the world's first 4.0MPa pressure oil-free screw compressor and the world's first 1.25MPa pressure oil-free vortex compressor.

Author: Miya