If the magnetic field is not well distributed within the magnetic clutch, if the clutch excitation setting is turned on, the magnetic powder will solidify under uneven distribution. Rotating in this state will cause the magnetic powder to deteriorate, resulting in higher than the set value. Of the torque. Normally, the value is less than a few percent of the set torque, but the value becomes larger when the magnetic powder is exposed to moisture, such as water and oil, or when the magnetic powder is seriously deviated.
At the start of the winding or unwinding operation, torque (pull-up at start-up) may occur higher than the set value at the moment when the punch pneumatic clutch or brake starts to slip.

Causes and Countermeasures
When the magnetic powder is out of the magnetic particle distribution, if the magnetic field is not well distributed, the magnetic flux will solidify under the uneven distribution if the clutch excitation setting is turned on, which will cause the magnetic powder to deteriorate and produce torque higher than the set value. Normally, the value is less than a few percent of the set torque, but the value becomes larger when the magnetic powder is exposed to moisture, such as water and oil, or when the magnetic powder is seriously deviated.

(1) Set the delay on, so that excitation in the clutch after a few seconds to start rotating again.
 ② In the stop of the clutch and idling, to maintain the rated current of about 5 to 10% of the weak excitation.
Emergency stop When the brake is used to stop the machine, stop the rotation while the magnetic powder is full of the brake operating surface. When restarting in this state, the torque at the moment of emergency stop is high, and the torque will be high instantaneously. Set the delay on to make the excitation turn on for a few seconds after the brake has started rotating.