Johnson Magnetic Disc Brakes

Johnson Magnetic Disc Brakes

The Johnson magnetic disc brake is currently available in 11 models. Foot mounted, this brake unit is built with fabricated steel mechanism and separate enclosed control units for DC or AC supplies. It is used for applications such as mechanical handling equipment, cranes, winches, conveyers and mills etc. Emergency stop brakes are often installed on flange of crane winding drum.

  • service brake self adjusting device (compensates for brake lining wear);
  • special materials, tests and finishes as required;
  • limit switches to monitor release/set or wear;
  • high integrity requirements such as the nuclear industry.

Short stroke DC tractive type with encapsulated coil and screw-off release nut with optional switch. All fabricated steel construction.

BRAKE
MODEL
DISC
DIA. “D” (1)
APPLIED
FORCE “AF”
EFFECTIVE
FACE “F”
WEIGHT
mm(in) kN(Lb) mm(in) kg(lb)
CU01 250-400(9.8-15.7) 3.6(809) 50(2) 30(66)
CU1 315-500(12.4-19.7) 6.1(1370) 60(2.36) 50(110)
CU2 400-710(15.7-27.9) 16.4(3690) 86(3.4) 142(313)
CU3 500-800(19.7-31.5) 37.9(8520) 120(4.7) 230(507)
CU4 630-800(24.8-31.5) 54.0(12100) 120(4.7) 292(644)
CX10 380-600(15-23.6) 25(5620) 60(2.36) 89(196)
CX20 450-710(17.7-27.9) 50(11200) 75(2.95) 102(225)
CX40 500-800(19.7-31.5) 100(22500) 90(3.5) 157(346)
CX60 600-960(23.6-37.8) 150(33700) 114(4.5) 280(617)
CX90 960-1500(37.8-59) 225(50600) 134(5.27) 440(970)
CX135 – details on application

 

Static Torque is calculated by:

[(AF x 0.4 (D-F)) / 2000]KNm or [(AF x 0.4 (D-F)) / 24]Lbft

(1) For discs outside the range, please call 1-888-547-DUKE (3853)