Gast Air Motor
Gast Air Motor Known industry wide for their rugged construction and reliability, Gast Air Motors and air powered Gearmotors are available in both lubricated and oilless models. These air motors and gearmotors are used in many industrial applications, from mixing equipment to running pump drives.
- Self-sealing vanes take up their own wear, ensuring consistent output for thousands of hours of use
- Variable speed capabilities allow flexibility and versatility in any number of app
- Cool-running operation means air motors can be used in ambient temperatures of up to 250° F (120° C)
- Non-electrical operation reduces the possibility of explosion from igniting flammable gases
Gast Air Motors are designed to thrive in harsher environments. Their lubrication protects internal components and helps carry away smaller particulate, which can evade filtration, while also providing heat dissipation benefits.
Air motors differ in many ways from other power sources. These unique operating characteristics must be considered when selecting an air motor for a particular job. It is easy to change horsepower and speed of an air motor by throttling the air inlet.
Therefore, the best rule of thumb for selecting an air motor is to choose one that will provide the horsepower and torque needed using only two-thirds (2/3) of the line pressure available. The full air line pressure will then be available for overloads and starting.
Output Power vs. Speed
The output power of an air motor is relative to speed and to air line pressure.
Air Consumption vs. Speed
Air consumption increases as speed and air pressure is increased.
Torque vs. Speed
- An air motor slows down when load increases… at the same time its torque increases to a point where it matches the load. It will continue to provide increased torque all the way to the stalled condition, and it can maintain the stalled
condition without any harm to the motor.
- As the load is reduced, an air motor will increase speed and the torque will decrease to match the reduced load.
- When the load on an air motor is either increased or decreased, speed can be controlled by increasing or decreasing air pressure.
- Starting torque of an air motor is lower than running torque. While this provides smooth, low-shock starting, it is necessary to have additional air line pressure for starting under heavy loads.
There are several points regarding the safety of air motors. Our air motors are not a source of electric sparks. However, it is possible that an article which is not part of the air motor (e.g., wrenches, hammers, etc.) could create a spark by sharply impacting a cast iron or aluminum case or the steel shaft of the air motor.
Gast Air Motors are designed to be operated by compressed air, the expansion of which creates a cooling effect. As a result, the outside surface temperature of the air motor will not reach ignition temperature and a maximum surface temperature of 275 °F/135 °C. Operation of the air motor with compressed air purges a flammable mixture from the inside of the air motor. To prevent static electricity from being an ignition source electrically ground the metal air motor.
Air Motors Product Overview
Air Gearmotors Product Overview