Cleco MR70R124M Reversible Rotary Vane Air Motor | 7.5 HP | 310 RPM | 472 (ft-lbs) Stall Torque | Side Exhaust

Built for low-speed, high-torque machine drive applications, the Cleco MR70R124M is a reversible rotary vane air motor suited for mixers, winches, conveyors, valve actuators, material handling equipment, and other pneumatic drive systems where electric motors may not be practical. Its 7.5 HP output provides substantial pneumatic power for large driven loads, while the 310 RPM free speed supports controlled rotation instead of high-speed spin. With 472 ft-lbs of stall torque, this MR70 Series motor can resist demanding load conditions without the burnout risk associated with stalled electric motors.

The rotary vane design uses compressed air to turn sliding vanes inside the motor chamber, producing smooth mechanical rotation with fast response and adjustable speed through air supply control. Reversible operation allows clockwise or counterclockwise rotation, while the side exhaust helps route spent air away from the mounting area. The MR70R124M combines a 32.5:1 gear ratio, 1-1/4" keyed spindle, and flange mounting configuration for integration into fixed machinery and custom pneumatic drive assemblies.

Type: Reversible Rotary Vane Air Motor | Series: MR70 Series | Model: MR70R124M | Power: 7.5 HP | Free Speed: 310 RPM | RPM at Max HP: 169 | Stall Torque: 472 ft-lbs | Starting Torque: 336 ft-lbs | Gear Ratio: 32.5:1 | Air Consumption: 212 SCFM | Air Inlet: 1" | Control: Reversible | Exhaust: Side | Spindle Type: 1-1/4" Keyed Spindle | Mount: Flange Mounting | Length: 16.63"

Features:

• Reversible rotary vane configuration supports rotation in either direction for machinery that must drive, retract, index, or reverse under pneumatic control.
• 7.5 HP output provides the power needed for large pneumatic drive systems, production equipment, and high-load mechanical motion.
• 310 RPM free speed delivers controlled shaft rotation for applications where torque and manageable speed matter more than high RPM.
• 472 ft-lbs stall torque helps the motor handle locked-rotor or high-resistance conditions without electrical burnout.
• 32.5:1 gear ratio increases output torque at lower speed for machinery requiring strong turning force.
• Side exhaust configuration directs spent air away from the motor body and adjacent mounting surfaces.
• 1-1/4" keyed spindle provides positive mechanical engagement with compatible couplings, sprockets, pulleys, or driven components.
• Flange mounting supports rigid installation into fixtures, frames, and custom machine assemblies.

Made in USA:

Applications:

• Industrial machinery — powering conveyors, indexing equipment, rotary tables, and mechanical drive systems where reversible pneumatic motion is required.
• Mixing and agitation systems — driving mixers or process equipment that benefit from high torque at controlled rotational speed.
• Material handling and lifting support equipment — providing pneumatic drive power for winches, hoists, cranes, and related load-control mechanisms when properly integrated.
• Valve actuation and process control — opening, closing, or positioning large valves where air-powered operation is preferred over electric drive systems.
• Hazard-sensitive work areas — replacing electric motors in environments where compressed air drive, stall tolerance, or reduced electrical exposure is desirable, subject to site safety requirements.

FAQs:

• Q: What does stall torque mean on this Cleco air motor?
  A: Stall torque is the torque available when the motor shaft stops under load. For the MR70R124M, the 472 ft-lbs stall torque rating indicates strong resistance to high-load or locked-rotor conditions, but the driven system should still be sized correctly for safe operation.
• Q: How much compressed air does the MR70R124M require?
  A: This motor is rated at 212 SCFM air consumption. That is a substantial air demand, so it should be supplied by an industrial compressed air system with adequate capacity, piping, filtration, regulation, and lubrication.
• Q: Can this air motor replace an electric motor?
  A: In many machinery applications, yes, provided the speed, torque, mounting, shaft, duty cycle, and air supply requirements are properly matched. Air motors are often selected where variable speed, reversing operation, stall tolerance, or pneumatic power is preferred.
• Q: What is the benefit of reversible operation?
  A: Reversible control lets the motor rotate in either direction. This is useful for equipment that must advance and retract, raise and lower, open and close, or clear jams without adding a separate reversing gearbox.
• Q: What should be checked before ordering this model?
  A: Confirm the flange mounting layout, 1-1/4" keyed spindle compatibility, air inlet size, required SCFM, gear ratio, output speed, and torque requirement against the machine design before purchase.

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