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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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Posistop Air Actuated Coupler Brakes for Severe Duty Applications

Low Maintenance – No Adjustment Oil Shear Coupler Brakes
Perfect for Hazardous Duty Applications and with air motors

Posistop Coupler Brake
Posistop Motor Brake

The Posistop Coupler Brakes 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.

Posistop coupler brakes are designed to mount to the drive end of the motor, often between the motor and reducer. Coupler brakes can also be used on servo motors and air motors for hazardous duty applications.

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, air motor, or other custom flanges.

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.

 

  • Up to 10 times longer life
  • Minimal Maintenance
  • No Adjustment – Ever!
  • Air or Hydraulic Actuation
  • Horizontal or Vertical Mounting
  • Tapered collet, bore and keyway or spline shaft connection
  • Spring Set Safety or Pressure Set
  • Dust, Dirt, and Moisture Proof
  • Washdown and Marine Duty
  • Hazardous Duty Compliant
  • Standard or Custom Mounting
  • Each model variable Torque – Number of  Springs and Discs




  • Torque 6 Lb. Ft. to 2,030 Lb. Ft.
  • Spring Set - Air or Hydraulic Release
  • Fit NEMA 56 to 449T motor frames
  • 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

 

PosistopMotorBrakeDiag

The totally enclosed sealed housing eliminates dust, dirt, moisture, and fumes from causing internal damage. Also using a hazardous duty 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 Servo Mounted
Posistop Coupler Brake

MB440 Coupler Brake
MB440 Posistop
Coupler Brake

MB056 Coupler Brake
MB056 Posistop
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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