Air Motor

An Air motor or  pneumatic motor Air motor or compressed air engine is a type of motor which does mechanical work by expanding compressed air. Pneumatic motors generally convert the compressed air energy to mechanical work through either linear or rotary motion. Linear motion can come from either a diaphragm or piston actuator, while rotary motion is supplied by either a vane type air motor, piston air motor, air turbine or gear type motor.

Why you should look into an  Air Motor manufactured GAST air motor :

• Variable speed.
You can vary air motor speed between 300 and 10,000 rpm (depending on model selection) with a simple valve put imagesin between the air source and air motor.
• Nonelectrical sparking.
As a nonelectrical device, the possibility of explosion from igniting flammable gases is greatly reduced.
• Instantly reversible.
A four-way valve in the air line enables a Gast Air Motor to be instantly reversed. A turn of the valve causes a complete
reversal of rotation, even when the motor is running at full speed.
• Cool running.
As the air motor turns, expanded air cools the motor. Units can be used in ambient temperatures up to 250°F (120°C) in an nonhazardous atmosphere.
• Compact and portable.
Get maximum horsepower with minimum size and weight

• Minimum maintenance.
You can put a Gast Air Motor in places where they will not get much service, because there’s virtually nothing to service on a Gast Air Motor, providing it is operated on a clean, dry, and lubricated air supply*.
• Will not burn out.
Gast Air Motors can be stalled or overloaded for long periods without damage.
• Low price.
Cost is less than other motors of equal horsepower and capabilities.
• Operate in all positions.
Mount them sideways, upside-down, or in any position so long as adequate lubrication* is provided and end thrust is kept to design limits. Gearmotors will operate in almost any position, see model data.
• Low-shock starts.
Because Gast Air Motors go to work with air-cushioned smoothness, they cut stress on your equipment.

• Self-sealing vanes.
Vanes are self-sealing and automatically take up their own wear, thus ensuring constant output for thousands of hours of use.

• Long-life accessories.
To ensure long life, Gast offers accessories designed to extend unit life including air filters that remove water and particles down to 5 microns, and air line lubricators that supply a constant flow of lubrication automatically*. We can supply a pressure regulator that provides precise control of power and operating speed. Options like these help you get smooth performance with
minimum maintenance.

*Non-lubricated series does not require a lubricator

Performance Overview


Gast Air Motor Model : 4 AM