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GAST Air Motor 6AM-NRV-7A

Air Motors & Mixers

GAST Air Motor 6AM-NRV-7A

The 6AM-NRV-7A is GAST's face-mounted, reversible 3 kW (4 HP) 6AM air motor: 3,000 rpm free speed, 13 Nm peak torque, 1/2" NPT ports and a 16 mm keyed shaft at 9.5 kg.

  • Air
    Powered
  • ATEX
    Safe
  • Variable
    Speed
  • Reversible

Explosion-Proof Power
for Hazardous Areas

The 6AM-NRV-7A is the standard imperial build of GAST's 3 kW frame: a face-mounted, four-vane reversible motor with 1/2" NPT ports and a 16 mm keyed shaft. It delivers 13 Nm maximum torque and 9.5 Nm at its 3,000 rpm free speed, consuming about 60 L/s of air at full output and 7 bar.

The face mount couples directly to GAST's AG809/AG811 worm gear reducers (10:1 and 20:1) for high-torque, low-speed drives. Like the rest of the AM range the motor is controlled by air throttling and pressure, can be stalled indefinitely, runs cool and is CE / ATEX II 2 GD c T4 marked for Zone 1 and 2.

  • Instant
    Stall-Safe Torque
  • Cool
    Running
  • Compact
    Footprint
  • Long
    Service Life

Technical Specifications

Max power2.98 kW (4 HP)
Max speed (free)3,000 rpm
Torque: max / starting @ 5.5 bar13.0 Nm (115 in-lb) / 6.9 Nm (61 in-lb)
Torque at max speed9.5 Nm (84 in-lb)
Air consumption (max)60 L/s (3.6 m³/min, 128 cfm)
Air inlet / exhaust port1/2" NPT
Output shaftKeyed, 16 mm (0.63 in), square key
MountingFace mount (N)
RotationReversible (RV)
LubricationLubricated
Max operating pressure7 bar (100 psi)
Weight9.5 kg

Materials

Body & End PlatesCast Iron or Aluminium
RotorSteel, dynamically balanced
VanesComposite, self-lubricating
ShaftStainless Steel
BearingsSealed ball bearings
MufflerAluminium / sintered bronze

Performance Curve

0510152005001,0001,5002,0002,5003,000Speed (rpm)Torque (Nm)
  • 6.9 bar (100 psi)
  • 5.5 bar (80 psi)
  • 4.1 bar (60 psi)
  • 2.8 bar (40 psi)
Indicative torque versus speed at four air inlet pressures (starting torque at 5.5 bar as reference); power peaks at roughly half of free speed. Certified GAST curves are supplied with the datasheet.

Dimensions

FramePower (kW)Length (mm)Diameter (mm)Shaft Ø (mm)Weight (kg)
1AM / 1UP0.03–0.1925880.8
2AM0.3–0.712578122.3
4AM0.7–1.3180100164.5
6AMthis model2.0–3.02501402213
8AM3.5–5.53001802824

Typical dimensions for the model range; certified dimensional drawings are available on request.

Downloads

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