The cleaning application will determine the size and length of the motor. For example, in curved tube applications the motor needs to be short enough to navigate the bend in the tube without sacrificing power or torque.
In general, the longer the motor, the more power or torque it has. However, at some point it doesn’t make sense to keep extending the length of a motor, because at a given length it maximizes the power needed for the application. Instead, it’s more important to optimize the components inside of the necessary motor diameter. The tighter the components fit inside of the motor, the more power or torque it has.
One of the most common issues that occur with air motors is the wear of thrust plates, bearings, and vanes. When a motor is running at high speeds, parts will begin to wear over time. Eventually, the motor case itself will wear, but not as quickly as the internal components.
It’s important to change out wear parts at the first sign of motor efficiency loss. When this occurs, it means the paddles aren’t extending like they should and they’re wearing down. Once the wear reaches a certain threshold, power or torque will be reduced.
When operating a turbine motor it’s important to lubricate the air source to keep the motor from overheating. It’s also necessary to maintain a consistent air supply to the motor because it will give the motor more consistent power or torque. If there isn’t enough air, the motor can lose power or torque and provide an inadequate clean.
Overall, air motors should be manufactured to a suit a specific application, in order to provide the best cleaning performance. Manufacturing tolerances, materials, and design principles can all impact the quality and performance of an air motor. In order to maintain cleaning performance and extend tool life, it is critical that motors are well maintained and operated properly.