Cleco MBS380M MB Series Radial Piston Air Motor | 5.5 HP | 540 RPM | 192 (ft-lbs) Stall Torque | Rear Exhaust

When a machine build calls for high-torque pneumatic power in a compact motor package, the Cleco MBS380M MB Series Radial Piston Air Motor provides 5.5 HP output with a 540 RPM free speed for driving mixers, indexing equipment, conveyors, hoists, winches, and other powered fixtures. Its radial piston design uses multiple pistons arranged around the drive centerline to generate strong low-speed torque, making it a practical choice when an electric motor may not provide the desired stall behavior, variable speed control, or pneumatic system compatibility.

The MBS380M delivers 192 ft-lbs of stall torque, giving integrators useful holding and overload capability when a driven load stops or binds. With 270 RPM at maximum horsepower and a 5.6:1 gear ratio, this MB Series motor is suited for lower-speed equipment where torque output matters more than high rotational speed. The rear exhaust configuration routes exhaust air away from the work area, helping simplify installation in enclosed machinery or guarded production cells.

Type: Radial Piston Air Motor | Series: MB Series | Model: MBS380M | Max Power: 5.5 HP / 4.10 kW | Free Speed: 540 RPM | RPM at Max HP: 270 RPM | Stall Torque: 192 ft-lbs / 260 Nm | Gear Ratio: 5.6:1 | Air Consumption: 144 SCFM | Air Inlet: 1" NPTF | Exhaust: Rear Exhaust | Performance Rating: 90 PSI / 620 kPa

Features:

• Radial piston air motor configuration provides strong torque output at lower operating speeds.
• 5.5 HP maximum power supports demanding powered-equipment and machine-drive applications.
• 540 RPM free speed with 270 RPM at maximum horsepower helps match moderate-speed driven loads.
• 192 ft-lbs stall torque allows the motor to tolerate stopped-load conditions without the burnout risk associated with many electric motors.
• 5.6:1 geared output increases usable torque while keeping rotational speed controlled.
• Rear exhaust directs air discharge away from the front of the motor and driven component.
• Threaded spindle configuration supports integration into compatible Cleco MB Series motor installations.
• MB Series platform includes direct-drive and geared model options, plus single-direction and reversible valving options within the family.

Made in USA:

Applications:

• Industrial machinery integration — powering conveyors, indexing equipment, feed mechanisms, and rotary fixtures where pneumatic drive is preferred.
• Mixing and agitation systems — driving low-to-moderate speed shafts where stall tolerance and torque output are important.
• Hoists, winches, and lift-assist equipment — supplying controlled rotary power in pneumatic systems with suitable guarding and controls.
• Packaging and production equipment — replacing or supplementing electric motors on automated machines that already use compressed air.
• Oil and gas, mining, and marine equipment — supporting air-powered machinery where pneumatic motors may be selected for environmental or duty-cycle reasons.

FAQs:

• Q: What does stall torque mean on the Cleco MBS380M?
  A: Stall torque is the torque available when the motor output stops under load. For this model, the stall torque is 192 ft-lbs, which helps the motor tolerate temporary stopped-load conditions without the same burnout concern associated with many electric motors.
• Q: Is this air motor meant to replace an electric motor?
  A: It can be used as a pneumatic alternative when the application requires air power, variable speed control through air regulation, stall tolerance, or installation in machinery already built around compressed air. Mounting, shaft connection, speed, torque, and air supply requirements should be checked before substitution.
• Q: How much air supply does the MBS380M require?
  A: The listed air consumption is 144 SCFM, and Cleco rates performance at 90 PSI / 620 kPa. The compressed-air system should be sized to maintain that pressure and volume under load.
• Q: What does radial piston mean?
  A: A radial piston motor uses pistons arranged around the drive centerline to create rotary motion. This layout is commonly selected for pneumatic motor applications that need higher torque at lower speed than many vane-style air motors.
• Q: Does this motor require lubrication?
  A: Yes. Cleco notes that the motor should be filled to the proper level before operation and lubricated with suitable non-detergent mineral oil for pneumatic motor use.

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Need help selecting the correct Cleco Air Motors for your application? Please call (800) 608-5210 or email info@intlairtool.com