Magnetic Particle Brakes – up to 3600 (lb-in) 406 (Nm)

Placid magnetic particle brakes provide smooth, repeatable torque control.  Torque control is independent of speed while the torque to current ratio is nearly linear and can be very accurately controlled.  These self-contained brakes are ideal for tension control, load simulation, and soft starts and stops.  Some sizes are available with fan or pneumatic cooling.

Typical Applications
  • Adjustable tension – for unwinding (payout) webs.
  • Load simulation – for testing stepper motors, gear motors and mechanisms.
  • Torque limiting.
  • Soft stops.
Torque
  • Is proportional to input current.
  • Is independent of RPM.
  • Metric Units – Clutch/Brake Torque Range = 0.3 – 20 to 400 Newton-meters.
Characteristics
  • With no electrical excitation, the shaft freely rotates.
  • With electrical excitation, the shaft becomes coupled to the case.
  • While the load torque is less than the output torque, the shaft won’t rotate.
  • When the load torque is increased, the brake will slip smoothly at the torque level set by the coil input current.
  • Metric Units – Clutch/Brake Torque Range = 0.3 – 20 to 400 Newton-meters.
Reference Material
Application Assistance Request Quote

Model Shaft Style Clutch/Brake Torque Range
(lb-ft)
Input Current
(watts)
Maximum Overhung Load
(lbs)
Max RPM Weight
(lbs)
Details
Model
KB-2.5
Shaft Style
Solid
Clutch/Brake Torque Range
(lb-ft)
0.2 - 15
Input Current
(watts)
1.3
Maximum Overhung Load
(lbs)
90
Max RPM
1800
Weight
(lbs)
19
Details
More Info
Model
KB-5
Shaft Style
Solid
Clutch/Brake Torque Range
(lb-ft)
0.5 - 38
Input Current
(watts)
2
Maximum Overhung Load
(lbs)
125
Max RPM
1800
Weight
(lbs)
31
Details
More Info
Model
POB-100F
Shaft Style
Solid
Clutch/Brake Torque Range
(lb-ft)
0.5 - 70
Input Current
(watts)
2.4
Maximum Overhung Load
(lbs)
175
Max RPM
1800
Weight
(lbs)
79
Details
More Info
Model
POB-200F
Shaft Style
Solid
Clutch/Brake Torque Range
(lb-ft)
2 - 130
Input Current
(watts)
2.7
Maximum Overhung Load
(lbs)
200
Max RPM
1800
Weight
(lbs)
128
Details
More Info
Model
POB-400F
Shaft Style
Solid
Clutch/Brake Torque Range
(lb-ft)
4 - 300
Input Current
(watts)
3.5
Maximum Overhung Load
(lbs)
325
Max RPM
1800
Weight
(lbs)
225
Details
More Info
Model
PLB-50
Shaft Style
Hollow
Clutch/Brake Torque Range
(lb-ft)
1.4 - 30
Input Current
(watts)
1.25
Maximum Overhung Load
(lbs)
125
Max RPM
500
Weight
(lbs)
17
Details
More Info
Model
PLB-100
Shaft Style
Hollow
Clutch/Brake Torque Range
(lb-ft)
1.5 - 70
Input Current
(watts)
2.7
Maximum Overhung Load
(lbs)
175
Max RPM
500
Weight
(lbs)
31
Details
More Info
Model
PLB-200
Shaft Style
Hollow
Clutch/Brake Torque Range
(lb-ft)
4 - 140
Input Current
(watts)
3.5
Maximum Overhung Load
(lbs)
200
Max RPM
500
Weight
(lbs)
62
Details
More Info