1, according to the compressed air in different ways, can be divided into two categories:

 First, power type: through dry type centrifugal, etc

 Second, the displacement: piston screw sliding-vane, etc

 2, according to the final exhaust pressure, displacement compressors, power, and can be divided into:

 The serial number category Displacement (3 m) power (KW)

1 large 50 ~ 100 m more than 3, 300 kw

2 medium 20 ~ 50 (excluding) 110 ~ 260

3 small 1 ~ 20 (excluding) 75 ~ 75

Under 4 miniature 1 (excluding) 55

 3, according to the compression chamber in the cylinder is to oil, can be divided into oil and oil free compressor.

 4, according to the different cooling ways, can be divided into: water cooling, air cooling