Air motors rely on air compression to operate. These motors are more efficient than motors with mechanical parts and have less friction. However, air motors powered by compressed air can require more energy, a lot of which is needed to compress the air in the first place. Air motors come in many versions with different specifications.
The air motor has steel-frame side plates extending beyond the wheels. Tapped holes provide additional safety drop stops and bumpers. Some air motors have a spark-resistant bronze wheel.
Engineers forge the wheels from heat-treated steel for American Standard tapered or wide flat-flange beams. The engineers seal and lubricate the wheel ball bearings. The right-angle traverse gear reducer has pinion meshing. The oil used with the reducer is made from hydrocarbons, which protect the gears at a broad range of temperatures. As with most motors, operators must lubricate the air motor, preferably with detergent engine oil.
The motor can have four vanes, or eight vanes with high torque. Four vanes usually get the job done, though eight can help improve the inching accuracy. The air motor provides the operator with pendant throttle control for controlled spotting and load handling.
Engineers designed air motors to run continuously without burning out, though operators can have them start and stop if necessary. Conventional motors tend to burn out. The air motors also survive in environments with very high temperatures where other motors wouldn’t.
Many air motors act as starters for diesel engines, gas turbines and electric motors. Engineers use these motors due to their efficiency.
The air motors tend to have threaded holes or bolts for mounts. Others have extended flanges with mounting holes. Threaded noses help engineers easily install the air motor into the tapped holes. The air motor is mounted on the plate with an integral bracket or with mounting features like feet.
Air Motor Materials
Engineers use a variety of materials to make air motors, including cast iron for use in a very hazardous environment. Stainless steel is used if the air motor will experience very corrosive chemicals. Plastic is used when the motor must remain sterile, since plastic materials clean easily.
Clockwise and Countercockwise
The air motors come in clockwise and counterclockwise versions for both the body and the vanes. Some air motors have reversible features, which allow owners to use the air motor in a greater variety of applications.