China permanent magnet manufacturer:

What is a multipole radial ring magnet?

Multipole radial ring magnet is used to magnetize the required number of poles on the hard magnetic ring material with a special magnetizing machine. The magnetizing effect is related to the material of the magnetic ring and the performance of the magnetizing machine. The magnitude of the magnetic energy product and the hysteresis attenuation are all related to the above conditions. The anisotropic NdFeB multipole magnetic ring is characterized by taking sintered anisotropic NdFeB as each pole of the magnetic ring, taking the magnetic conductive material as the magnetic ring skeleton, having a bonding layer between each pole and between each pole and the skeleton, and having a solid heat-resistant resin layer on the surface of the magnetic ring. The utility model has the advantages of firm structure, good magnetic properties, simple processing technology and low production cost.

Multipole radial circular ring permanent magnet is used in micromotor. Nowadays, micromotor is widely used and widely used in the world. Permanent magnet brushless DC motor is the development direction of micro motor. Multipole permanent magnets, including ferrite pads and bonded NdFeB, play an important role in advanced brushless DC motors, permanent magnet synchronous motors and permanent magnet stepping motors.

Grades of Sintered NdFeB Radial Multipole Ring Magnet

Grade Remanence
Intrinsic Coercivity
Max Energy Product
Operating Temp.
N35 11.7-12.2 ≥10.9 ≥12 33-36  (MGOe) 80
N38 12.2-12.5 ≥11.3 ≥12 36-39  (MGOe) 80
N48 13.8-14.2 ≥11.6 ≥12 46-49  (MGOe) 80
N35M 11.7-12.2 ≥10.9 ≥14 33-36  (MGOe) 100
N38M 12.2-12.5 ≥11.3 ≥14 36-39  (MGOe) 100
N45M 13.2-13.8 ≥12.5 ≥14 43-46  (MGOe) 100
N35SH 11.7-12.2 ≥11.0 ≥20 33-36  (MGOe) 150
N38SH 12.2-12.5 ≥11.4 ≥20 36-39  (MGOe) 150
N42SH 12.8-13.2 ≥12.4 ≥20 40-43  (MGOe) 150
N45SH 13.2-13.8 ≥12.6 ≥20 43-46  (MGOe) 150
N33UH 11.3-11.7 ≥10.7 ≥25 31-34  (MGOe) 180
N35UH 11.8-12.2 ≥10.8 ≥25 33-36  (MGOe) 180

China Multipole Radial Ring Magnet Manufacturer supplies multipole radial ring magnets, multipole magnetic rings, multipolar sintered or bonded neodymium ring magnet, neodymium (ndfeb) rings for scientific experiments or for industrial applications, in kinds of materials such as NdFeB/NIB/neodymium iron boron, etc.

This product is not a toy and is not to be used by children. This product is to be used for scientific experiments or for industrial applications. This product contains strong Neodymium magnet(s) that can be harmful or fatal if swallowed. Strong Neodymium magnets are fragile, they are brittle and will break or chip if they hit a hard surface or are snagged together. Always use the utmost care when handling Neodymium magnets.

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