Gast 6AM-FRV-5A Air Motor

A reversible, 4 HP (3 kW) rotary vane air motor featuring a 4-vane design and a heavy-duty Foot Mount. It is an intrinsically safe, cool-running power source designed for high-torque applications where electrical sparks are prohibited.

Description

The 6AM-FRV-5A utilizes a standard 4-vane configuration, optimized for high-speed efficiency and reliable start-ups. Because it is powered entirely by compressed air, it is inherently ATEX and CE certified for use in explosive atmospheres (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-FRV-5A to operate in ambient temperatures as high as 121°C (250°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.

Features

  • ugged Foot Mount: Features a heavy-duty integrated base with four mounting holes for secure, vibration-resistant installation.
  • 4-Vane Efficiency: The standard industrial configuration for high-speed operation and consistent performance across its RPM range.
  • Variable Speed & Torque: Speed can be precision-controlled from 300 to 3,000 RPM by simply “throttling” the air supply with a regulator or needle valve.
  • Explosion Proof: Inherently safe for use in refineries, chemical plants, and grain elevators where combustible gases or dust are present.
  • Instantly Reversible: A simple 4-way valve in the air line allows the motor to switch rotation directions instantly, even under full load.
  • Stall-Safe: Unlike an electric motor, the 6AM-FRV-5A can be stalled indefinitely without damage or risk of fire.

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

  • Industrial Agitators: Powering large mixers for paints, resins, and chemicals where flammable vapors are a concern.
  • Conveyor Drives: Providing variable speed transport for mid-sized loads in high-heat or wash-down environments.
  • Pump Drives: Operating gear, centrifugal, or diaphragm pumps in hazardous processing zones.
  • Winches and Hoists: Utilizing high starting torque for pulling or lifting in mines and on oil rigs.
  • Foundry Equipment: Operating near furnaces or industrial kilns where electric motor components would melt.