Gast 1UP-NRV-4-GR11 Gear Motor

Description

Gast 1UP-NRV-4-GR11 Gear Motor is a “workhorse” for small-scale automation. Because it is powered entirely by compressed air, it is ATEX and CE certified for hazardous locations (Group II, Cat 2), where electric motors would pose a spark risk.

The motor features a Face Mount and a 1/2″ keyed shaft, allowing it to be easily integrated into specialized machinery. Its cool-running design allows it to operate in ambient temperatures up to 121°C (250°F), which is ideal for chemical processing or lab environments.

Why the Gast 1UP Gear Motor is the Best Investment

Investing in the Gast 1UP-NRV-4-GR11 Gear Motor is an outstanding decision for any facility looking to optimize its mechanical drives. One of the most efficient aspects of the 1UP series is the reduction of complexity; by combining the motor and gearbox, you eliminate the need for external belts, chains, or pulleys, which reduces the number of parts that can fail.

The efficient design of this air gear motor ensures low air consumption while delivering the steady torque required for precision mixing and driving. Backed by Gast’s legendary American engineering, the Gast 1UP-NRV-4-GR11 Gear Motor offers a much longer lifespan in harsh conditions compared to standard electric motors. When your process demands a compact, powerful, and spark-free drive solution, the 1UP-NRV-4-GR11 is the most outstanding and efficient tool for the job.

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

15:1 Gear Reduction: Converts high-speed internal rotation into a stable, high-torque output with a maximum no-load speed of 400 RPM.
Compact Footprint: Measuring approximately 7-5/16″ in length, it fits into tight machine frames where larger gear motors cannot.
Variable Speed: The output speed can be precisely adjusted from 50 to 400 RPM by simply regulating the air pressure or flow volume.
Instantly Reversible: A 4-way control valve allows the motor to switch rotation directions instantly, even under full load.
Explosion Proof: Non-electrical operation is safe for refineries, chemical plants, and areas with flammable vapors.
Stall-Safe: Can be stalled indefinitely without damage, providing built-in protection against mechanical jams.

Specifications

Feature	Specification
Maximum Power	0.31 hp (0.23 kW)
Gear Ratio	15:1
Max Speed	400 RPM
Max Torque	95 lb-in (10.7 Nm)
Starting Torque @ 80 psi	75 lb-in (8.5 Nm)
Max Air Consumption	21 CFM ( $35.7 m^3/h$ )
Port Size	1/8″ NPT
Shaft Diameter	0.500 in (1/2″)
Net Weight	3.1 lbs (1.4 kg)

Applications

Laboratory Stirrers: Driving chemical mixers where precise speed control and spark-free safety are mandatory.
Small Pump Drives: Operating miniature metering or centrifugal pumps in hazardous processing zones.
Tensioning Systems: Maintaining constant pull on film or wire lines where the motor may frequently stall.
Precision Feeders: Powering small transport systems or dosing equipment requiring frequent starts and stops.
OEM Machinery: Integrated into automated industrial tools or robotic arms requiring a lightweight, cool-running motor.