Neodymium magnets are permanent magnets made of a boron, iron and neodymium alloy, and are the most powerful magnets currently on the market. Even the conventional ferrite magnets, in equal volume, are much weaker than neodymium magnets.
The power of neodymium magnets
Neodymium magnets are, in general, small and extremely powerful. They can be found in all shapes and sizes: plates, boxes, cubes or spheres, disks, cylinders, rings and even stickers.
The weaker Neodymium magnets - but they are still strong magnets - have a degree of magnetization equal to N40 or N45. The most powerful are N52 grade. Neodymium magnets higher than N52 grade are not easily available commercially. The theoretical limit for neodymium magnets is N64, but in laboratories we have been able to create neodymium magnets to a maximum of N56 grade.
Neodymium magnets applications
Neodymium magnets are used to make hard disk, in the medical field, in several industry fields in all those cases where a permanent magnetic source with good intensity is necessary.
Therefore they are recommended when there is need for:
Among the GI-DA magnetic systems neodymium magnets are used for example in the manufacture of Eddy Current Separators.