Positorq Tension Brakes
- Steel strip, paper, wire
- 50 Lb. Ft. to 200,000 Lb. Ft. Continuous tension
- Up to 3000 Thermal HP.
- Linear control based on pressure
- Quick Response – Smooth Quiet Operation
- Dynamic Stopping Capability for Set or E-Stop
Smooth, Quiet, Control, With E-Stop Capability
The 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 200,000 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 stands. 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.
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.
Positorq Dynamometer Load Brakes
- Low Speed High Torque Load Testing
- Final drive, transmissions, axles
- Direct connect to test item – no speed up drive
- 50 Lb. Ft. to 180,000 Lb. Ft. continuous tension
- Up to 3000 Thermal HP.
- Linear control based on pressure
- Quick Response – Smooth Quiet Operation
Designed for High Torque – Low Speed Load Testing
of Axles, Final Drives, and Transmissions
Whether it’s testing the most complex aircraft system, off road final drives, or tractor transmissions; Force Control has the products for your load testing requirements. Our patented high-torque, low-speed Positorq load brakes are used to simulate real world environments.
Force Control Industries unique Oil Shear Technology provides heat dissipation for high horsepower applications while maintaining a compact profile capable of direct mounting to the drive axle – eliminating additional gearboxes.
In addition, with Oil Shear Technology, disc wear is negligible, allowing long term testing without loss of torque. In fact most Positorq Dynamometer load brakes in service over the past 40 years have required little to no maintenance.
HIGH TORQUE – LOW SPEED Load Testing
Why Select Positorq Dynamometer Load Brake
- Quick Response
- Proportional Linear Torque Control
- Continuous High Torque at Low Speed
- High Static Torque
- No Chatter Down to 0 RPM
- Quiet—Less Than 20 dB
- Compact Size—Direct Axle Mount
- Air or Hydraulic Actuation
- Extremely Long Service Life
- Near Zero Hysteresis
- Torque up to 300,000 Lb. Ft.
- Dissipating up to 3000 HP
- Variety of Mounting Types
Where to Use Positorq Dynamometer Load Brakes
Contact our Dyno Engineers for a Recommendation
High Cycle-Low Speed-High Torque Dynamometer Test Stand
- 831 Lb. Ft. Dynamic Torque
- 150Thermal Horsepower
- High Cycle torque loading
- Closed Loop Cooling And Actuation
- Control and Data Aquisition System
Used to reduce field testing time.
TB-20 Engine Starter Test Stand
- 4000 lb-ft. Brake
- 100 Thermal Horsepower
- 700 RPM
Used to test hydraulic starter motors for large hazardous duty engines.
Transmission Test Stand
- (2) 7,000 lb. ft. Brake
- 300 Thermal Horsepower 3300 RPM
Used to test rebuilt military transmissions.
Axle Test Stand
- TB-10 Positorq Brake
- 554 Lb. Ft. Torque, 100 RPM 10 THP
- TB-03 Positorq Brake
- 72 Lb. Ft. torque 3600 RPM, 5 THP
Used to test rebuilt military transmissions.
Medium Tractor Test Stand
- Two TB-83 Positorq Brakes
- 4,700 Lb. Ft. Torque
- 150Thermal Horsepower
- Smooth Down to 1 RPM
