Industrial Rotary Vane Compressor

A rotary vane air compressor consists of a cylindrical housing vessel containing a set of adjustable rotating vanes and exchanging air through an inlet and outlet. The vanes are set on an eccentric drive shaft which faces the outlet. As the drive shaft rotates, the length of the adjustable vane closest to the outlet shortens, compressing the air within the spinning chamber. This air then escapes through the outlet and can be powered for subsequent further processing.

Principle of rotary vane

The rotor has a number of slots machined along its length in which sliding vanes on an oil film are mounted. The rotor rotates within a cylindrical stator. During rotation, centrifugal force causes the blades to protrude from the slots and form individual compression cells. The rotation reduces the cell volume and increases the air pressure. 

The heat generated by the compression is controlled by pressurized oil injection. The only component in constant motion is the rotor, which is directly driven at a very low speed (1450rpm) to provide unrivaled reliability. The key benefits of this technology mean that vane compressors have a long service life and are an extremely reliable and proven technology.