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NdFeB magnets

NdFeB magnets are third-generation rare-earth permanent magnets made of neodymium, iron, and boron, known as the "king of magnets" for offering the highest magnetic output per unit volume among all permanent magnet materials. Their superior energy product enables more compact and lightweight device designs, but since they are iron-based alloys, surface treatments are typically required to prevent oxidation and rust. Manufactured as anisotropic sintered magnets through a process of powder preparation, magnetic-field pressing, sintering, and precision machining, they are available in a wide range of shapes, sizes, grades, and coatings to meet diverse application needs across electronics, automotive, medical, renewable energy, and industrial automation industries.

Grade
Coercivity Range (kA/m)
Applications
Max. Operating Temperature
N (Low Coercivity)
870 – 1000
Normal-temperature scenarios with less strict magnetic stability requirements
80°C
M (Medium Coercivity)
1000 – 1150
General industrial applications, e.g. small motors, speakers
100°C
H (High Coercivity)
1270 – 1350
Applications requiring strong demagnetization resistance
120°C
SH (Very High Coercivity)
1350 – 1590
More demanding environments
150°C
UH (Ultra-High Coercivity)
1590 – 1990
Aerospace, large motors and other high-end fields
180°C
EH (Extremely High Coercivity)
1990 – 2380
High-tech fields with extreme magnetic property requirements
200°C
TH (Super High Coercivity)
2380 – 2780
Critical applications in special environments (highest grade)
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About Us
Mishma Industry (Shanghai) Co., Ltd.
Mishma Industry (Shanghai) Co., Ltd.

Mishma Industry (Shanghai) Co., Ltd. was founded in 2011, with more than ten years of production and manufacturing experience, a total area of more than 10000 m2, complete magnet manufacturing equipment and testing equipment, and five production lines for the production of various magnets, including Bonded NdFeB, Sintered NdFeB, Sintered Ferrite, Rubber Magnet, AlNiCo, SmCo, etc.

 

Our products take lead in terms of the consistency of magnetic property, dimensional accuracy, rust-proof treatment and more.Our company has established a standardized modern enterprise system, as well as a sound management structure, and has passed multiple management system certifications.

 

All the time, we have been making great efforts in providing customers with environmentally friendly magnetic products featuring stable capacities and higher cost performance, to become the world′s most competitive supplier of magnetic materials.

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