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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.
Mining Brakes
Unit of Measure
Items Mining Brakes
PE-113
2450 Newton Meter (N·m) Static Torque at 60 Pounds per Square Inch (psi) Pressure Mining Brake 		Mining Brakes
PE-117
5030 Newton Meter (N·m) Static Torque at 60 Pounds per Square Inch (psi) Pressure Mining Brake 		Mining Brakes
PE-217
9290 Newton Meter (N·m) Static Torque at 60 Pounds per Square Inch (psi) Pressure Mining Brake 		Mining Brakes
PE-121
9800 Newton Meter (N·m) Static Torque at 60 Pounds per Square Inch (psi) Pressure Mining Brake 		Mining Brakes
PE-221
17900 Newton Meter (N·m) Static Torque at 60 Pounds per Square Inch (psi) Pressure Mining Brake
Description N/A 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.
Brands N/A WPT®
Static Torque at 60 Pounds per Square Inch (psi) (4.1 Bar) Pressure1 N/A 21700 lbf.in2450 N.m N/A 44500 lbf.in5030 N.m N/A 82200 lbf.in9290 N.m N/A 86700 lbf.in9800 N.m N/A 158000 lbf.in17900 N.m
Total Weight Less Hub N/A 180 lb82 kg N/A 350 lb160 kg N/A 470 lb210 kg N/A 520 lb230 kg N/A 660 lb300 kg
Drive Plate Weight N/A 16 lb7 kg N/A 34 lb16 kg N/A 60 lb27 kg N/A 43 lb20 kg N/A 96 lb44 kg
Drive Plate Inertia N/A 2.6 lb·ft²0.11 kg·m² N/A 8.5 lb·ft²0.36 kg·m² N/A 16 lb·ft²0.66 kg·m² N/A 17 lb·ft²0.73 kg·m² N/A 35 lb·ft²1.5 kg·m²
Lining Area N/A 90 in²580 cm² N/A 134 in²870 cm² N/A 270 in²1700 cm² N/A 200 in²1300 cm² N/A 400 in²2600 cm²
Dimension - A N/A 18.872 in479.35 mm N/A 23.995 in609.47 mm N/A 23.995 in609.47 mm N/A 28.245 in717.42 mm 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 16-5/8 in422.4 mm N/A 21 in533.4 mm N/A 21 in533.4 mm N/A 25 in635.0 mm N/A 25 in635.0 mm
Dimension - E N/A 6-9/16 in166.6 mm N/A 8-5/8 in218.4 mm N/A 11-1/16 in280.7 mm N/A 9-1/8 in231.1 mm N/A 11-1/4 in286.3 mm
Dimension (J) Air Inlet N/A 1/2 N/A 1/2 N/A 1/2 N/A 3/4 N/A 3/4
Thread Type N/A National Pipe Thread (NPT)
Hole Circle (B) N/A 17.63 in447.7 mm N/A 22.50 in571.5 mm N/A 22.50 in571.5 mm N/A 26.75 in679.5 mm N/A 26.75 in679.5 mm
Diameter (B) N/A 21/32 in N/A 25/32 in N/A 25/32 in N/A 25/32 in N/A 25/32 in
Quantity N/A 8 N/A 12 N/A 12 N/A 12 N/A 12
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 N/A Contact WPT® for other available torques and release pressures.
  • 1 Dynamic (slipping) Torque is 75% of the Static Torque.