Permanent magnet screw compressor consists of a pair of intermeshing screw rotors.
Working principle of permanent magnet screw compressorThe core of
permanent magnet screw compressor consists of a pair of intermeshing screw rotors, which are driven by permanent magnet synchronous motor to achieve gas compression. The
working process of permanent magnet screw compressor can be divided into the following three processes:
1. Inhalation
The rotor tooth groove space forms a negative pressure at the inlet end, sucking in external air, and then the tooth groove is closed to form a compression chamber.
2. Compressed air
The rotor continues to rotate to reduce the volume of the cavity, the air is compressed, and lubricating oil is sprayed in to achieve sealing and cooling;
3. Exhaust process:
The high-pressure gas is discharged through the exhaust port and discharged after cooling by the aftercooler.

The core advantage of permanent magnet technology is the use of rare earth permanent magnet materials. The motor does not require excitation current, and the rotor rotates synchronously with the magnetic field to reduce energy loss. The inverter can accurately adjust the speed to achieve load matching and avoid the frequent start-stop energy consumption of traditional compressors.
Advantages of permanent magnet screw compressor1. Energy saving
The efficiency of permanent magnet motors is 8% higher than that of ordinary motors, and high energy efficiency is maintained in the load range of 25%-120%. Frequency conversion control makes the exhaust pressure fluctuation less than 0.1 bar, reducing no-load energy consumption.
2. Small footprint
Compact design reduces floor space, and lubrication system reduces mechanical wear
3. Low noise
Multiple noise reduction treatments, operating noise is about 18 decibels lower than traditional models
4. Intelligent system
Support remote monitoring system, real-time adjustment of operating parameters
Application of
permanent magnet screw compressor1. Electronic component processing
Support air pressure control and transmission of precision components
2. Food processing
Used for packaging machinery and pneumatic transportation to ensure production hygiene and safety
3. Mining, rock drilling
Airfler combines German technology to independently develop
screw air compressors that are stable, energy-efficient and efficient, and provide customized air compressor solutions.
Our Screw rotor production center