Rare earth magnets  is one kind of the permanent magnets. Material Grade of NdFeB magnets as follow

1.Magnet N-( N35, N38, N40, N42, N45, N48, N50),

2.Magnet M-(35M, 38M, 40M, 42M, 45M, 48M), 

3.Magnet H-(35H, 38H, 40H, 42H, 45H), 

4.Magnet SH-(30SH, 33SH, 35SH, 38SH, 40SH, 42SH), 

5.Magnet UH-( 28UH, 30UH, 33UH, 35UH, 38UH), 

6.Magnet EH-(28EH, 30EH, 30EH, 33EH, 35EH)

Rare earth magnets' applications:

1) Application of NdFeB magnet:Toys, package, Printer, Switchboard, Phone, voice coil motors (VCM's) in hard disk drives, high performance motors, brushless DC motors, magnetic separation, magnetic resonance imaging, sensors, loudspeakers etc. 

2) The coating of NdFeB magnets can be Zn, Ni, Ni-Cu-Ni, Epoxy, CR3+ZN, NI+AG, NI+AU. 

3) Our factory can also manufacture various sizes of NdFeB magnet, according to the customer's specification

Neodymium Iron Boron (NdFeB) magnets are composed of Nd, Fe, B, Dy, Co and other minor elements. As the third generation of rare earth permanent magnet, NdFeB magnets become the most advanced commercialized permanent magnet material today. NdFeB magnets are available in both sintered and bonded forms.

Sintered NdFeB magnets have very high magnetic properties, excellent magnetic characteristics and good performance in ambient temperature. They are mechanically stronger than Sm-Co magnets and less brittle than ceramic & AlNiCo magnets. However, sintered NdFeB magnets are very easy to be corrosive. Therefore, for long time using, they have to be protected with special coating, such as Zn, Ni, Ni-Cu-Ni, or epoxy. In general, sintered NdFeB magnets need some finish machining to meet the final tolerance.

NdFeB magnets are produced at our two facilities in China, Ningbo and Baotou. High Energy materials are produced at our Baotou facility where we have installed the latest equipment and technology to produce the world's highest energy materials used in MRI, VCM, and other applications. Yunsheng serves the market with higher coercivity materials used in high performance motors, generators, sensors and other applications. We own the Patent License from Sumitomo Special Metals Co. for the manufacture and sales of Nd-Fe-B magnets. Our NdFeB magnets offer an excellent dollar value in terms of price/performance per unit of energy product allowing for smaller shapes and sizes with high magnetic performance. In addition, our low cost manufacturing resources will promote significant cost reduction for your application.