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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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Positorq Brakes for Tension Control

Smooth, Quiet, Control, With E-Stop Capability

Tension BrakesThe Positorq Oil Shear Absorber brakes are a unique design for continuous tension control, The unique Oil Shear Technology provides extremely smooth, ultra quick response, negligible wear with no adjustment required, high energy dissipation in a compact package, and noise free. Positorq Brakes are rated up to 180,000 Lb. Ft. Slip Torque and 3000 Thermal Horsepower.

The Positorq brakes work well in tension applications especially unwind stands where the brake is used to maintain tension on the strip. This can be paper, board, plastic, copper, steel, and wire. The brake can be coupled, flange mounted, or connected through gear, belt, or chain drive.

A major advantage for Positorq brakes is Oil Shear Technology. Oil Shear Technology provides smooth engagement, higher heat dissipation, negligible wear on friction discs, bearings, and splines, and quiet operation.

The Positorq Brakes operate by applying pressure on a piston or pistons clamping the friction stack. The tighter the clamping force the higher the torque, and it is not affected by speed. The actuation medium can be pneumatic or hydraulic. The hydraulic actuation is more controllable.

Transmission fluid in the brake transmits torque between the friction disc and drive plates providing the torque. As this fluid is heated it is pumped back through a Forced Lube Cooling Unit that has oil-to-water or oil-to-air cooling, filters, pumps and reservoir. The FLCU allows the brake to be very compact, with low inertia.

Tension Control Brakes

  • Steel strip, paper, wire, plastic, cardboard
  • 50 Lb. Ft. to 180,000 Lb. Ft. Continuous Tension
  • Thermal Dissipation Up to 3000 Thermal HP.
  • Linear Torque Control
  • Quick Response – Smooth Quiet Operation
  • Dynamic Stopping Capability for Set or E-Stop

Typical Industry Applications Include:

Paper Mill Winder

Book Cover
Wire Drawing
Steel Unwind
Plastic Sheet



Shaftless Unwind Stand Steel Unwind Stand Paper Unwind Stand Plastic Unwind Stand

Unwind Stand

Unwind Stand

Unwind Stand

Unwind Stand


Steel Unwind Brake Kraft Paper Unwind
Steel Unwind Brake with Bore for Expanding Mandrel and Forced Lube Cooling Unit. Kraft Paper Unwind Stand with Shaft, Auto-coupler, Payout Drive, on Structural Reservoir.

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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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