The compact and portable 16AM-HB20 (GM) series provides air motor speed and power output that can be adjusted to meet the precise requirements of your application. Not only are their 20:1 gear reducers ideal for low speed and high torque applications, but they can also stall or overload for long periods of time without damaging the motor. In addition, these Gast air motors run cool and without electrical sparks, making them ideal for use in hazardous locations.