What model has the strongest strong magnetism?

NdFeB strong magnet is the magnet with the best cost performance so far.

The brands of NdFeB magnetic materials are: N30 ~ N5230h ~ 50h30sh ~ 50sh28uh ~ 40uh30eh ~ 35eh, etc.

The main raw materials for producing Nd-Fe-B permanent magnet materials are rare earth materials such as neodymium, praseodymium, pure iron, aluminum and ferroboron. The core technology of NdFeB industry is mainly reflected in the manufacturing process.

It is reflected in the uniformity, consistency, processing quality and coating quality of its products.

Expand data advantages

The third generation of rare earth permanent magnet NdFeB is the strongest permanent magnet among contemporary magnets. Its BHmax value is 5- 12 times that of ferrite magnet and 3- 10 times that of alnico magnet. Its coercivity is 5- 10 times that of ferrite magnet and 5- 15 times that of alnico magnet. Its potential magnetic performance is extremely high, and it can lift 640 times its own weight.

Because the main raw material iron in neodymium magnet is very cheap, the reserve of rare earth neodymium is 10- 16 times that of samarium, so its price is much lower than that of samarium cobalt magnet. Neodymium magnet has better mechanical properties than samarium cobalt magnet and Al-Ni-Co magnet, and it is easier to cut, drill and process complex shapes.

The disadvantages of neodymium magnet are poor temperature performance, large magnetic loss and low maximum working temperature when used at high temperature. Generally, it is about 80 degrees Celsius, and the highest working temperature of specially treated magnets can reach 200 degrees Celsius.

Because the material contains a lot of neodymium and iron, it is easy to rust, which is also a big weakness. Therefore, neodymium magnets must be coated on the surface. Electroless plating of nickel (Ni), zinc (Zn), gold (Au), chromium (Cr), epoxy resin, etc.

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