Gast 8AM-NRV-28A Air Motor

Description

The 8AM-NRV-28A is a 4-vane model, which is the industrial standard for efficient power delivery and reliable start-ups. Because it operates entirely on compressed air, it is ATEX and CE certified for hazardous locations (Group II, Cat 2).

As the compressed air expands through the motor, it creates a natural cooling effect, allowing the unit to operate in ambient temperatures as high as 120°C (248°F). This model is “reversible,” meaning a simple 4-way valve in your air line allows you to flip the rotation from clockwise to counter-clockwise instantly, even while the motor is running at speed.

Brand

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

NEMA 145TC Mounting: Designed with the standard C-face flange and a 7/8″ (0.88 in) keyed shaft, allowing it to bolt directly onto NEMA-spec gear reducers.
4-Vane Design: Optimized for high-speed efficiency and reliable operation across a wide range of pressures.
Variable Speed & Torque: Speed can be precision-controlled from 300 to 2,500 RPM by simply throttling the air supply.
Explosion Proof: Non-electrical design makes it safe for use in chemical plants, refineries, and grain elevators.
Stall-Safe: Unlike electric motors, this unit can be stalled or overloaded for long periods without damage or overheating.
Any Plane Operation: Can be mounted horizontally, vertically, or at any angle without affecting performance.

Specifications

Feature	Specification
Maximum Power	5.0 hp (3.73 kW)
Maximum Speed	2,500 RPM
Max Air Consumption	175 CFM ( $297 m^3/h$ )
Maximum Torque	185 lb-in (20.9 Nm)
Max Operating Pressure	100 psi (7 bar)
Port Size	1/2″ NPT
Shaft Diameter	0.875 in (7/8″)
Net Weight	28 lbs (12.7 kg)

Applications

Chemical & Paint Agitators: Driving large mixers where flammable vapors are present.
Conveyor Systems: Powering belts in wash-down or high-heat zones.
Pump Drives: Operating centrifugal or gear pumps in hazardous industrial zones.
Winches & Hoists: Utilizing high starting torque for material handling in mines or oil rigs.
Packaging Machinery: Providing adjustable speed for filling and sealing lines.