Gast 6AM-NRV-22A Air Motor

A reversible, 4 HP (3 kW) rotary vane air motor featuring a 4-vane design and a NEMA 56C flange mount. It is an intrinsically safe, cool-running power source designed to bolt directly to standard gear reducers and pumps.

Description

The 6AM-NRV-22A is a 4-vane model, which is the standard configuration for high-speed efficiency and balanced performance. Because it is powered by compressed air rather than electricity, it is inherently ATEX and CE certified for use in hazardous locations (Group II, Cat 2), as it cannot produce an electrical spark.

A major advantage of this motor is its “self-cooling” nature. As compressed air expands through the motor to create motion, it absorbs heat. This allows the 6AM-NRV-22A to operate in ambient temperatures as high as 120°C (248°F), far exceeding the limits of standard electric motor insulation.

Brand

GAST

GAST 

Since 1921, Gast Manufacturing, Inc. has been a leader in the design and manufacturing of quality air-moving products. We specialize in offering cost effective solutions for a wide variety of industries including industrial manufacturing, healthcare, and environmental cleanup applications.

Specifications

FeatureSpecification
Maximum Power4.0 hp (3.0 kW)
Maximum Speed3,000 RPM
Max Air Consumption125 CFM ($212 m^3/h$)
Maximum Torque95 lb-in (10.7 Nm)
Starting Torque @ 80 psi73 lb-in (8.2 Nm)
Port Size1/2″ NPT
Shaft Diameter0.625 in (5/8″)
Net Weight21 lbs (9.5 kg)

Applications

  • Chemical & Paint Mixers: Driving agitators in tanks where flammable vapors make electric motors a hazard.
  • Conveyor Systems: Powering transport lines that require frequent starts, stops, or wash-downs.
  • Industrial Pumps: Operating centrifugal or diaphragm pumps in hazardous processing zones.
  • OEM Machinery: Integrated into specialized equipment where a compact, spark-free NEMA-mount motor is required.
  • High-Heat Material Handling: Operating near industrial ovens or furnaces where heat would destroy electric components.