Two - Stage Power Screw Air Compressor

There are two basic types of rotary screw compression: single stage and two stage.

A single-stage rotary screw air compressor contains a single set of rotors in a single stator housing and is typically driven directly by the motor shaft, through a set of gears, or by a belt and pulley arrangement. A two-stage rotary screw air compressor contains two sets of synchronized rotors and can be housed in a common stator housing (over/under design) or two separate stator housings bolted together in tandem (end-to-end design).