Magnetic powder clutch/brake common troubleshooting methods

We often encounter some problems in the process of using the magnetic powder clutch brake, resulting in the machine not working properly, find the root cause of the problem in order to better solve. Ltd. has summarized several common failures and solutions of magnetic powder clutch brake, hope it will help you.


1. The torque is unstable under normal working conditions

Causes: a. Abnormally high temperature of the magnetic powder has caused some scarring. b. Some of the working surfaces are nibbled.

Solution: a. Screen the original cavity magnetic powder, add some new magnetic powder to reach the weight required in the instructions. b. Repair the working surface.


2.  in the rated excitation current slip friction torque down to below 70%

Reason: a. The magnetic powder is close to aging after a long time of use. b. The magnetic powder is partially burned and loses its function at abnormally high temperatures.

Solution: Replace the powder with a new one.

3. In the rated excitation current, the torque does not increase with the increase of current

Causes: a. Water-cooled magnetic powder brake, water into the wet magnetic powder, the magnetic powder can not be magnetized. b. The magnetic powder lost its function.

Solution: a. Replace the seal and dry the powder. b. Replace the powder with new powder.

4. in the rated excitation current, the running rotor suddenly stuck

Reason: The working gap, a large number of scars gathered caused by

Solution: replace the new powder


5. Adjust the potentiometer of the current stabilization power supply without torque output

Causes: a. Short circuit of the coil. b. No current output from the current regulator. c. No current output from the current regulator. d. No current output from the current regulator.

Solution: a, with a change of coil. b, overhaul the stabilized power supply.


6. Water leakage from the drip hole below the cover

Reason: Rotating water seal wear

Solution: Replace the water seal and pay attention not to block the drip hole.