We usually call it a "strong magnetic bar", which generally refers to a strong magnetic bar made of industrial permanent magnet materials. Mainly used for the separation of ferromagnetic impurities.

The structure of the strong magnetic bar is: the inside is composed of NdFeB permanent magnetic material and magnetic conductive sheet, which is assembled according to the Hellbeck principle, and the shell is made of seamless stainless steel tube. Its magnetic field can reach more than 12000GS. It is the core component of industrial iron removal equipment.

Internal structure diagram of strong magnetic bar