Air motor is a continuously rotating pneumatic actuator, is a compressed air pressure energy into rotary mechanical energy conversion device. It outputs torque and drives the actuator to rotate. There are three main types of pneumatic motors: vane air motor, piston air motor, geared air motor. This article mainly introduces the types of air motor. Vane air motor is a device that can convert the pressure of compressed air into rotational mechanical energy. A piston air motor is an air motor that converts the linear motion of several pistons into rotary motion through a crank or a swash plate.

