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GAST 6AM-FRV-81 Rotary Vane Air Motor - Rotary Vane Air Motors
GASTRotary Vane Air Motors

GAST 6AM-FRV-81 Rotary Vane Air Motor

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

Also listed as: 6AMFRV81 · 6AM FRV 81

Brand
GAST
Item
6AM-FRV-81 Rotary Vane Air Motor
Part Number
6AM-FRV-81
Category
Rotary Vane Air Motors
Available to Order
Also known as:6AM-FRV-81GAST
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Technical specs
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

GAST
Manufacturer Part Number
6AM-FRV-81
Series
6AM
Type
84 in-lb Torque, 3,000 RPM, 130 cfm, Foot, CW/CCW, Cast Iron
NPT
1/2 in
UNSPSC
27131508
Weight
21 lb
Includes
Muffler
Rotation
CW/CCW
Standards
ATEX
Mount Type
Foot
Keyway Type
Square
Catalog Page
N/A
Keyway Depth
1/8 in
Keyway Width
1/8 in
Output Power
4 hp Output Power This describes the amount of horsepower (HP) an air motor or gearmotor produces at the output shaft while operating at its maximum RPM (revolutions per minute).
Shaft Length
1-3/8 in Shaft Length
Keyway Length
1-3/8 in
No Load Speed
3,000 RPM No Load Speed This describes the operating speed an output shaft may achieve when under no load, represented in RPM (revolutions per minute).
Overall Width
5 in
Air Inlet Port
1/2 in NPT
Overall Height
6 in
Overall Length
7-1/2 in
Shaft Diameter
5/8 in Shaft Diameter
Air Consumption
130 cfm
Starting Torque
62 in-lb
Housing Material
Cast Iron
Outside Diameter
5 in
Country of Origin
USA (subject to change)
Length Less Shaft
6-11/100 in
Minimum Flow Rate
11 cfm
Output Shaft Type
Keyed
Product Description
Rotary vane air motors use pressurized air to spin an internal shaft to generate rotational force. The vanes on the rotor act as fins or blades that catch air to create motion.
Mounting Orientation
Any Angle
System of Measurement
Inch
Housing Material Finish
Painted
Maximum Operating Pressure
100 psi
Maximum Ambient Temperature
248 °F
Minimum Ambient Temperature
34 °F
Manufacturers Warranty Length
1 yr

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GAST Products
3G Electric (S) Pte. Ltd. — Singapore

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 GAST
Laboratory air supply — GAST Oil-Free Rocking Piston Air Compressor (1760408) for clean, oil-free compressed air
Material handling — GAST Regenerative Blower (R3105-12) for conveying or aeration in packaging lines
Medical vacuum — GAST Rotary Vane Vacuum Pump (AT05-101-G215DX) for suction in clinical or laboratory settings
Pneumatic control — GAST Reciprocating Piston Compressor (4LCB-55S-M450GX) for powering actuators in manufacturing
Environmental monitoring — GAST Diaphragm Compressor/Vacuum Pump (DOA-P707-AA) for air sampling or gas analysis
Mobile equipment — GAST DC Piston Compressor (3HBB-19-M322A) for on-vehicle pneumatic systems
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GAST 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.

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