Idemag SL products

Sintered neodymium-iron-boron magnets (Nd-Fe-B) are magnets of the rare earth family, they are the most powerful available on the market, with a maximum energy product that varies from 26 MGOe to 52 MGOe. They are the third generation of permanent magnets developed in the 1980s. They have high remanence and coercivity values. They are offered in a wide range of qualities, sizes and shapes. For the production of this type of magnet a sintering process is used. The maximum working temperature is 200ºC for qualities with high coercivity.

Ferrite magnets, also called ceramic, are made through a sintering process. They are composed of a mixture based on iron oxide plus strontium or barium and a ceramic binder, crushed and pressed, with a very fine granulometry. If during the pressing process, the particles are oriented by applying a magnetic field, the end result is an anisotropic magnet. If this process is not done, the end result is an isotropic magnet.

Alnico magnets are made from Aluminum, Nickel, Cobalt, Copper, Iron and other components in smaller quantities. They are the only permanent magnets made using a casting process. The hot mixture is poured into the mold and after it has cooled, it is unmolded and polished. During the cooling process, the pieces are subjected to a magnetic field that orients the particles. The end result is an anisotropic magnet.