PC magnetic powder clutch work principle: 

Magnetic particle clutch | brake is a type of auto-control component with high-performance which uses driving and driven units as main body, powder (magnetic powder) with high magnetic conductivity as working medium and exciting current as control means so as to achieve control transfer/braking torque and to keep the linear relationship between input current and output torque. With the development of the modern industry, it plays an increasingly important role in all industrial fields and demonstrates great advantages over other components

The products are widely used in winding and unwinding starting/braking control, stamping startup, overload protection, position control, speed control, tension control, artificial load and relevant fast control systems.