Air motor is engineered with rotary vane system which 7 pieces of vanes make a rotor rotate with air pressure. 7 pieces of vanes are equipped in a rotor installed in a biased cylinder and they are able to slide to radius direction.
Reduction gears are planetary gears which are small and light and further capable of large speed reducing ratio. Reduction gears are heat-treated gears.
Control valve contains 2 spool valves of spring return type which has 2 position and 3 port. Valve is operated by the lever switch connected to a spool.
Brake for EHW series realizes excellent braking capability due to both a durable and secured cone brake connected with a control valve and engine brake effect generated by a typical air motor.