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.
Overview
Options
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.
Magnetic Actuator
Short stroke DC tractive type with encapsulated coil and screw-off release nut with optional switch. All fabricated steel construction.
Resin encapsulated coil with Class F insulation
Optional replaceable coil arrangement for CX range
100% continuously rated up to 40°C ambient
Air gap dust and drip protected by neoprene gaiter
Terminal box IP55 enclosure
Part List
Models
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)
Resources
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