Electric permanent magnet chuck working video:

In the work, the permanent magnet is in the loop, in order to reduce the influence of magnetoresistance more, increase the magnetic flux density of the key core of the working pole surface, so that some soft magnetic materials are used as a magnetic yoke. Usually, the magnetic circuit design of the electric permanent magnet chuck has two magnetic systems, and the magnetic system of the chuck is divided into two parts: active and fixed. When the state of the active magnetic system is changed, the working pole surface is in a state where the magnetic field is superimposed or the reverse magnetic field is generated and the magnetic field is cancelled.