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Gast 4AM-70C-CB60 Gear Motor

Gast 4AM-70C-CB60 Gear Motor

A reversible, 0.9 HP (0.67 kW) air gear motor featuring an 8-vane design and a 60:1 worm gear reduction. It provides up to 1,100 in-lb of torque and is optimized for spark-free, continuous-duty industrial environments.

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Description

The Gast 4AM-70C-CB60 is a versatile power source for hazardous locations. Because it is powered entirely by compressed air, it is ATEX certified for use in explosive atmospheres. The 8-vane configuration is a critical technical detail; it ensures smoother rotation at low speeds and improved “inching” control compared to 4-vane models.

The right-angle output allows for flexible mounting in tight spaces. Its cool-running design enables it to operate in ambient temperatures up to 120°C (248°F), far exceeding the limits of traditional electric gear motors.

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.

Features

  • 60:1 Worm Gearbox: Provides significant mechanical advantage, converting high-speed air motor rotation into massive low-speed torque.
  • 8-Vane Performance: Delivers superior low-speed stability and more consistent torque output, making it ideal for precise mixing or positioning.
  • Reversible Operation: A simple 4-way valve allows for instant directional changes, even while under a full load.
  • Intrinsically Safe: Non-electrical operation makes it perfect for chemical plants, refineries, and flammable vapor environments.
  • Stall-Safe: Can be overloaded or stalled for extended periods without damaging the motor or creating a fire hazard.
  • Rugged Construction: Features a cast-iron housing with a high-strength steel keyed output shaft for maximum durability.

Specifications

FeatureSpecification
Maximum Power0.9 hp (0.67 kW)
Gear Ratio60:1
No Load Speed50 RPM
Torque @ Max Speed1,040 in-lb (117.5 Nm)
Max Torque (Static)1,640 in-lb (185 Nm)
Max Air Consumption72 CFM (122 $m^3/h$)
Shaft Diameter1.125 in (1-1/8″)
Mounting TypeFace / Base

Applications

  • Industrial Agitators: Mixing heavy or viscous fluids in tanks where variable speed and high torque are required.
  • Conveyor Drives: Powering heavy-duty transport lines in wash-down or hazardous food-processing zones.
  • Lifting & Hoisting: Utilizing the 60:1 gear reduction for controlled lifting in spark-sensitive areas.
  • Material Handling: Driving large turntables or rotation equipment in automotive and assembly plants.

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