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GAST Air Motor 2AM-NCW-7A

Air Motors & Mixers

GAST Air Motor 2AM-NCW-7A

The 2AM-NCW-7A is the clockwise-only counterpart of the 2AM-NCC-16: a 0.71 kW (0.95 HP), 3,000 rpm hub-mounted GAST air motor with a 12.7 mm flat shaft and 1/4" NPT port.

  • Air
    Powered
  • ATEX
    Safe
  • Variable
    Speed
  • Reversible

Explosion-Proof Power
for Hazardous Areas

GAST builds the 2AM hub-mount motor in both fixed directions so that a drive can be laid out without a reversing valve. The NCW-7A rotates clockwise viewed from the output shaft; the NCC-16 is its counter-clockwise twin. Both use a four-vane rotor, a single 1/4" NPT supply port and a muffled exhaust.

The motor delivers 0.71 kW at 3,000 rpm with 3.16 Nm peak torque and consumes about 14 L/s at full load and 7 bar. It is oil-lubricated (an in-line lubricator at 1 drop per 50–75 cfm is recommended), operates in any orientation and carries CE and ATEX marking for Zone 1 and 2.

  • Fixed Clockwise
    Rotation
  • Spark-free, Cool
    Running
  • Instant
    Stall-Safe Torque
  • Cool
    Running

Technical Specifications

Max power0.71 kW (0.95 HP)
Max speed (free)3,000 rpm
Torque: max / starting @ 5.5 bar3.16 Nm (28 in-lb) / 1.98 Nm (17.5 in-lb)
Torque at max speed2.2 Nm (19.5 in-lb)
Air consumption (max)14.2 L/s (0.85 m³/min, 30 cfm)
Air inlet / exhaust port1/4" NPT
Output shaftFlat shaft, 12.7 mm (0.5 in)
MountingHub mount
RotationClockwise only (CW), non-reversible
LubricationLubricated
Max operating pressure7 bar (100 psi)
Weight1.9 kg

Materials

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

Performance Curve

01234505001,0001,5002,0002,5003,000Speed (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
2AMthis model0.3–0.712578122.3
4AM0.7–1.3180100164.5
6AM2.0–3.02501402213
8AM3.5–5.53001802824

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

Downloads

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