1. When the magnetic separator is out of factory, some manufacturers are not complete in technical force and the magnetic circuit is not designed properly, which causes demagnetization.
2, when the seal of the magnetic cylinder is not strict, the magnetic block is oxidized.
3, the material of the magnetic block itself is inferior, and the demagnetization is serious in a certain time.
4. The working environment of the magnetic separator is abominable, the friction temperature of the material and the drum rises, and the magnetic demagnetization temperature is close to the magnetite demagnetization temperature.
5. The early design of the magnetic block is too thin, and the coercivity is low, and the demagnetization is used for a certain time.