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The Copper Water Cooled (CWC) brake is designed for maximum heat transfer in a small package. The CWC is perfect for tension control equipment, coil processing, paper mill unwinding stands, and large inertia stops. The air tube actuator allows for smooth torque transitions while delivering peak performance.
Unit of Measure

Specifications

Brands

 N/A WPT®

Medium Coefficient Pneumatic Torque Rating at 100 Pound per Square Inch (psi) (7 bar) Pressure

 N/A 48400 lbf·in5460 N·m

High Coefficient Pneumatic Torque Rating at 100 Pound per Square Inch (psi) (7 bar) Pressure

 N/A 74700 lbf·in8450 N·m

Note for Pneumatic Torque Rating at 100 Pound per Square Inch (psi) (7 bar) Pressure

 N/A Pneumatic Max Actuator Pressure: 130 psi (9 bar) All sizes
Torque is directly proportional to the actuator pressure applied
Low Coefficient and Extra-High Coefficient Friction Material offerings are available.

Parallel Piping Heat Dissipation Capacity

 N/A 225 hp168 kW

Series Piping Heat Dissipation Capacity

 N/A 150 hp112 kW

Minimum Freshwater Flow

 N/A 23 gpm84 L/min

Note for Heat Dissipation Capacity and Minimum Freshwater Flow

 N/A Rated heat dissipation requires a freshwater flowrate of 1 gpm for every 10 hp (one liter per minute for every 2 kW) and are based upon a 50°F (28°C) temperature rise between the inlet and outlet. The outlet water temperature should not exceed 170°F (77°C). Maximum inlet water pressure is 60 psi (4.1 bar). Ethylene Glycol is the recommended coolant additive. At 50% concentration in water, the required flowrate is 1.5 times the freshwater flowrate, due to the reduced specific heat of the solution.

Maximum Free-Wheel Speed

 N/A 2740 rpm

Maximum Slip Speed

 N/A 1820 rpm

Total Weight

 N/A 510 lb230 kg

Hub and Drive Plate (DP) Weight

 N/A 163 lb74 kg

Hub and Drive Plate (DP) Inertia

 N/A 52 lb·ft²2.2 kg·m²

Dimensions

Dimension - A

 N/A 18.750 in476.25 mm

Dimension - A Tolerance

 N/A +0.000 in-0.003 in+0.00 mm-0.08 mm

Hole Circle (B)

 N/A 17.50 in444.5 mm

Diameter (B)

 N/A 21/32 in16.7 mm
Quantity1 N/A 6

Dimension - C

 N/A 14.375 in365.13 mm

Dimension - C Tolerance

 N/A +0.003 in-0.000 in+0.08 mm-0.00 mm

Thread Size P

 N/A 1/2

Thread Type

 N/A National Pipe Thread (NPT)

Dimension - D

 N/A 17-1/2 in444.5 mm

Dimension - E

 N/A 14-1/4 in362.0 mm
Minimum Bore Range2 N/A 2.13 in54.0 mm
Maximum Bore Range3 N/A 4.50 in114.3 mm

Features

Features

 N/A
  • O-ring water jacket design for same-day field service
  • No outboard support required
  • Standardized mounting for OEM applications, rebuilds, or retrofits
  • The actuator is naturally corrosion resistant
  • Legacy service parts available for additional sizes

Note

Note

 N/A Contact WPT® Power for final selection, product flexibility, application guidance and approval. Certified prints available on request. Dimensions and Specifications are considered as reference only and subject to change.
  • 1 14” brakes have (6) mounting holes based on a (8) hole pattern. 18” and 24” brakes have (10) mounting holes based on a (12) hole pattern. (2) holes omitted for coolant inlets/outlets
  • 2 Maximum bores shown are with a standard square key. Contact WPT® Power for bore sizes exceeding those shown.
  • 3 Maximum bores shown are with a standard square key. Contact WPT® Power for bore sizes exceeding those shown.