GAST Air Motor: 4 hp, 84 in-lb Torque, 3,000 RPM, 130 cfm, Foot, 1/2 in NPT
The GAST Air Motor is a 4 hp rotary vane air motor delivering 84 in-lb torque at 3,000 RPM with 130 cfm airflow. It features a 1/2 in NPT port, foot mounting, and reversible CW/CCW rotation in a cast iron housing…
SKU 3G-OTH-149019
Need installation or engineering help?
Ask a question
Product Description
The GAST Air Motor is a 4 hp rotary vane air motor delivering 84 in-lb torque at 3,000 RPM with 130 cfm airflow. It features a 1/2 in NPT port, foot mounting, and reversible CW/CCW rotation in a cast iron housing (MPN 6AM-FRV-81).
Frequently Asked Questions
What is a GAST 6AM-FRV-81 air motor used for?
The GAST 6AM-FRV-81 rotary vane air motor delivers 4 hp with 84 in-lb torque at 3,000 RPM. It is used in industrial applications requiring explosion-proof, variable-speed power, such as conveyors, mixers, hoists, and pump drives in hazardous or washdown environments.
What are the specifications of the GAST 6AM-FRV-81 air motor?
This GAST air motor provides 4 hp, 84 in-lb torque, 3,000 RPM, and 130 cfm air consumption. It has a 1/2 in NPT port, foot mounting, reversible CW/CCW rotation, and a cast iron housing. The manufacturer part number is 6AM-FRV-81.
Where to buy a GAST 6AM-FRV-81 air motor worldwide?
3G Electric supplies the GAST 6AM-FRV-81 air motor to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this rotary vane air motor.
How to install a GAST rotary vane air motor?
Mount the GAST 6AM-FRV-81 securely on a rigid foot base. Connect a 1/2 in NPT supply line with a filter-regulator-lubricator. Ensure the motor is piped for CW or CCW rotation as needed. Follow GAST’s manual for lubrication and torque specs on mounting bolts.
Used in
Common applications for GASTGAST Products
3G Electric supplies GAST rotary vane air motors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















