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Building Oil Shear Clutches & Brakes
since 1969
Call Today 800-829-3244

Force Control Industries, Inc.
3660 Dixie Highway
Fairfield, Ohio 45014 USA
Phone 513-868-0900 | Fax 513-868-2105

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Air Actuated Assembled Brake Motors for Severe Duty Applications

Low Maintenance – No Adjustment Oil Shear Motor Brakes
Perfect for Hazardous Duty Applications

The Posistop Assembled Brake Motor consists of a Posistop Motor Brake mounted to a brakeless brake motor providing a complete brake motor package with the reliability of the Posistop brake featuring Oil Shear Technology.

MB210 AssembledBrakeMotor

Posistop Motor Brake


The brand and type of motor furnished is selected based on the application, customer preference, and availability.

By ordering the Assembled Brake Motor the customer is assured of getting the correct combination of brake and motor professionally assembled in an easy to install package. Force Control can also provide a gear reducer to the package, and provide mounting bases if required.

The air actuated Posistop Brake Motor is a solution to those hazardous duty applications by using an approved motor, and hazardous rated solenoid valve.

The Posistop ABM (Assembled Brake Motor) are designed for long life with minimal maintenance in severe and critical applications. They are typically furnished as spring set, pressure release brakes however pressure set spring release is available in some models. Five model sizes offer torque from 6 Lb. Ft. to 2,030 Lb. Ft. and fit 56 frame up to 440 frame motors. Special flanges mountings can be furnished such as IEC, servo, or other flange sizes.

The standard shaft connection is a quill using a tapered collet providing a 360º clamped connection. Other quills are available including splined and bore and keyway.

Posistop Motor Brakes
  • Up to 10 times longer brake life
  • Air/Hydraulic actuation, Spring Set or pressure set
  • Torque 6 Lb. Ft. to 2030 Lb. Ft.
  • Minimal Maintenance and Repair Cost
  • Washdown and Marine Duty, Severe Duty
  • No Adjustment – Ever!
  • Up to 80% Lower Inertia
  • Thru Shaft models available
  • Dust, Dirt, and Moisture Proof
  • Aluminum, Cast Iron, or Stainless Steel Motors
  • Foot Mounted and C Face Motors
  • Inverter Duty, Fan Cooled, or Blower Cooled
  • Special Duty Motors
  • Non-Standard Voltages, DC Motors
  • NEMA and IEC Frame Motors
  • Low temperature design -40 F


Specifications for the brakes only are shown. Contact Force Control Industries for specification detail for the complete MagnaShear Assembled Brake Motor.

Dimensions are shown for the brake only. Contact Force Control Industries for specification detail or drawings for the MagnaShear Assembled Brake Motor.

How To Order
MagnaShear Assembled Brake Motors are typically custom orders. Contact Force Control Industries for ordering information.

Selection information is for information only. Contact Force Control Industries for specific application information.

Oil Shear Technology
Oil Shear Technology is the heart of MagnaShear Assembled Brake Motors


  • PosistopMotorBrakeDiagTorque 6 Lb. Ft. to 2,030 Lb. Ft.
  • 1 to 400 HP Assembled Brake Motors
  • Spring Set - Air or Hydraulic Release
  • IEC and Custom flange available
  • Collet style quill for 360 º shaft connection
  • Wash Down, Marine Duty, Severe and Hazardous Duty
  • Can also be furnished as an assembled brake motor

The totally enclosed sealed housing eliminates dust, dirt, moisture, and fumes from causing internal damage. Also using an explosion proof valve the Posistop brakes can be used in hazardous environments.

Posistop brakes are designed as dynamic brakes, in other words they can dynamically stop a load as well as hold it. The high thermal capacity allows higher cycle rates, and heavier loads.

The secret to the long life and minimal maintenance is Oil Shear Technology. Utilizing transmission fluid circulating through the disc stack the friction surfaces are protected from mechanical contact during dynamic engagement and the heat is removed via the fluid to the housing to be cooled. This nearly eliminates friction disc wear. The friction stack is typically not replaced as a regular wear item but only during rebuild. Because there is virtually no wear there is no need to adjust the brake for wear as is necessary with dry friction competitors.

MB210 AssembledBrakeMotor

MB210 Assembled
Brake Motor

MB210 MotorBrake

Motor Brake

MB210 ThruShaftMotorBrake

MB210 Thru Shaft
Motor Brake

Posistop Brake assembled
on a Servo Motor

MB056 CouplerBrake

MB056 Coupler Brake

MB440 CouplerBrake

MB440 Coupler Brake

Oil Shear Technology is what makes the difference.

By reducing friction disc wear, removing heat, and lubricating the internal components, up to 10 times longer life can be expected without constant adjustment and repair. Force Control Posistop and MagnaShear brakes have been reducing cost and increasing production in applications around the world since 1969.

Providing Reliable Braking Since 1969

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Posidyne Oil Shear Clutch Brakes last so much longer than the popular dry friction inexpensive clutch brakes it is sometimes hard to determine how much savings can be realized.

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Oil Shear Technology
Is The Difference!


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