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The Mining Brake is a spring-applied, air-released design specifically for heavy-duty earthmoving equipment, such as rope shovels and draglines. These brake units feature pneumatic operation, have a variety of torque capacities and pressure settings, and can dissipate large thermal loads. Multiple hub options provide installation flexibility. Optional limit switches and wear indicators are available.
Unit of Measure

Specifications

Brands

 N/A WPT®
Static Torque at 60 Pounds per Square Inch (psi) (4.1 Bar) Pressure1 N/A 158000 lbf.in17900 N.m

Lining Area

 N/A 400 in²2600 cm²

Quantity

 N/A 12

Weight and Inertia

Total Weight Less Hub

 N/A 660 lb300 kg

Drive Plate Weight

 N/A 96 lb44 kg

Drive Plate Inertia

 N/A 35 lb·ft²1.5 kg·m²

Dimensions

Dimension - A

 N/A 28.245 in717.42 mm

Dimension - A Tolerance

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

Dimension - D

 N/A 25 in635.0 mm

Dimension - E

 N/A 11-1/4 in286.3 mm

Dimension (J) Air Inlet

 N/A 3/4

Thread Type

 N/A National Pipe Thread (NPT)

Hole Circle (B)

 N/A 26.75 in679.5 mm

Diameter (B)

 N/A 25/32 in

Features

Features

 N/A
  • Metallic friction linings
  • Available in vertical or horizontal mounting configurations
  • Single piston design for high torque capacity
  • Solid and ventilated floating wear plate
  • Optional limit switches and wear indicators

Note

Note

 N/A Contact WPT® for other available torques and release pressures.
  • 1 Dynamic (slipping) Torque is 75% of the Static Torque.