Still Do Not Understand The Correct Use Of Hollow Shaft Magnetic Powder Brakes?

The magnetic powder brake is based on the electromagnetic principle and uses magnetic powder to transmit torque. It has the characteristics that the excitation current and the transmission torque are basically linear. It can transmit a certain torque regardless of the slip, and has the advantages of fast response, simple structure, no pollution, no noise, no impact vibration and energy saving. It is a multi-purpose, high-performance automatic control component.

        The hollow shaft magnetic powder brake series has a small outer diameter and a small axial dimension, and the hollow shaft has a small footprint and can be easily mounted on the machine. The rotating body is covered by the stationary part, and the natural cooling effect is small, but the heat capacity can be increased by forced air cooling.

        Correct use of hollow shaft magnetic powder brakes:
1. When the hollow shaft magnetic powder brake and the clutch are used for continuous sliding of winding and unwinding, the product and life may vary depending on the conditions of use (relative sliding speed, etc.). However, in general, the life of iron powder in reducing the rated torque in the constant current is about 4500 to 7500 hours. However, in some cases, it is not available for the rated torque, so it can be used continuously and the life can be extended. However, even if the sliding operation rate is the same, the sliding rotation speed, that is, the relative rotation speed is continuously high, the life tends to be reduced. Therefore, it is necessary to reduce the relative rotation speed at the time of setting.

2. In order to prolong the life of the iron powder, it is also a way to allow the sliding work rate to be sufficient when used.

3. If the driven member is used as the input side, it will continue to idle for a long time, and the iron powder will be stirred, and the life will be greatly reduced. Please try to avoid this method. If it is unavoidable in any way, please set the current to weak excitation when using. When operating at low speed (16 RPM or less), stable torque characteristics are generated during continuous operation such as tension control.
 4. Even if the end of the roll is over, continue to give weak excitation (constant 7-150% current) so that the iron powder does not fall from the action surface;
 5. Please increase the speed and the low rotation speed to 16RPM.