Gast 1UP-NRV-11-GR11 Gear Motor: Efficient Torque

Gast 1UP-NRV-11-GR11 Gear Motor a reversible, 0.31 HP (0.23 kW) rotary vane gear motor featuring an 8-vane design and a 15:1 gear reduction. It provides a maximum output speed of 400 RPM and is an intrinsically safe choice for hazardous or high-temperature industrial environments.

Description

Description

Gast 1UP-NRV-11-GR11 Gear Motor is a “workhorse” for precision tasks. The 8-vane configuration is a critical technical upgrade over the 4-vane models; it provides smoother rotation, more consistent torque at low speeds, and better “inching” control. Because it is powered entirely by compressed air, it is ATEX and CE certified, making it safe for use around flammable vapors or combustible dust where electric motors would be dangerous.

The motor is designed for face mounting and can operate in any plane (horizontal or vertical), though horizontal or shaft-down is preferred for optimal gearbox lubrication.

Why the Gast 1UP Gear Motor is the Best Investment

Investing in the Gast 1UP-NRV-11-GR11 Gear Motor is an outstanding decision for any facility looking to reduce total cost of ownership. One of the most efficient aspects of the Gast air gear motor line is its sheer durability. By combining the motor and gearbox into a single, pre-engineered unit, you reduce the number of potential failure points like belts, chains, or external speed reducers.

The efficient thermal properties and explosion-proof nature of this motor make it an outstanding choice for modern factory automation. Backed by Gast’s legendary American engineering, the 1UP-NRV-11-GR11 delivers more “torque-per-pound” than equivalent electric gear motors, all while maintaining a spark-free profile. When your operation requires a compact, high-torque drive solution that can survive in the harshest conditions, the Gast 1UP-NRV-11-GR11 Gear Motor is the most efficient and reliable tool for the job.

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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.

Specifications

FeatureSpecification
Maximum Power0.31 hp (0.23 kW)
Gear Ratio15:1
Max Speed400 RPM
Max Torque95 lb-in (10.7 Nm)
Starting Torque @ 80 psi75 lb-in (8.5 Nm)
Max Air Consumption21 CFM ($35.7 m^3/h$)
Port Size1/8″ NPT
Shaft Diameter0.50 in (1/2″)
Net Weight3.1 lbs (1.4 kg)

Features

  • 15:1 Gear Reduction: Converts high-speed air motor rotation into a stable, high-torque output with a maximum no-load speed of 400 RPM.
  • 8-Vane Performance: Offers superior low-speed stability and more reliable start-ups under load compared to 4-vane versions.
  • 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 regulating air pressure or flow.
  • Reversible Rotation: A 4-way control valve allows for instant directional changes, ideal for tensioning or indexing tasks.
  • Stall-Safe: Can be stalled indefinitely under load without damage or risk of overheating, providing natural overload protection.

Applications

  • Small Agitators: Mixing coatings, chemicals, or laboratory samples where high torque and spark-free safety are required.
  • Conveyor Drives: Powering miniature transport lines in hazardous or “wash-down” food-processing zones.
  • Tensioning Systems: Maintaining constant pull on film, wire, or paper lines where the motor may frequently stall.
  • Turntables: Rotating small automated platforms that require precise, variable speed control.
  • Pump Drives: Operating small positive-displacement pumps in chemical processing.