Working principle:
With the compressed air, the pressure energy is converted into mechanical energy by the piston air motor.
After the compressed air enters into the inlet of the air motor, the air distributing system (valve core and valve bush) distributes the compressed air in sequence into the air cylinders. The compressed air in the said cylinders is expanded to push the piston reciprocating moving, then to drive the connecting rod and crank to revolve.

Features:
Compact and powerful
Easily operate and low maintenance
Reliable and stable run under inflammable, explosive, outdoor, wet, damp and other extremely conditions
Overload protection function, automatically reduce to a lower speed until overload relieved and restart
Speedless control regulates the input air volume to adjust the rotary speed and power.
The air motor can be started, stopped and converted direction frequently.
Self-cooling of air motor, thus the air motor can work with wide temperature rang from 0-150 celsius(or 0-302f).
When air motor works, no sparks or leaking oil occurred, thus the air motor can work run under inflammable, explosive circumstance.

Application:
Air motors are widely used in different industry fields, especially in extreme circumstance, where electric motors or other engines can not be used. The typical industrial applications:
Pneumatic mixers
Pneumatic conveyer
Drill rig
Gunite machine
Pneumatic winch