China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Multi-pole magnetic ring is a kind of ring magnet mainly used in motors, encoders, magnetic sensors, electrical appliances above, the common types of multi-pole magnetic ring include outer diameter multi-pole magnetic ring, inner diameter multi-pole magnetic ring, flat multi-pole magnetic ring, the following is about how they are magnetized and magnetization schematic.
OD multi-pole magnet ring magnetization method;
OD multi-pole magnetizing, which we also call radial external magnetizing, is mainly used for motor rotors, commonly 4-pole, 8-pole, 16-pole and so on. The method of magnetizing is to use a specific coil, which is arranged around the outer diameter of the ring, and to adjust the structure and winding method of the coil according to the required number of poles, to ensure that the magnetic field generated by the current can produce the expected magnetic pole distribution on the outer surface of the ring.
I.D. multi-pole ring magnetization method;
I.D. multi-pole magnetization, i.e., radial internal magnetization, with strong inner-circle magnetism, commonly used poles are 4-pole, 8-pole, 10-pole, etc., like the more popular applications are fan motors. It is magnetized by keeping the magnetizing coil close to the inner diameter of the magnetic ring.
Planar multi-pole magnetizing method;
Planar multi-pole magnetization can be single-sided or double-sided, so there are also single-sided multi-pole magnetic rings, double-sided multi-pole magnetized rings, typical applications are blowing nozzles, and the method of magnetization is to magnetize the magnetizing coil tightly against the end face of the permanent magnet ring.
Following diagram shows the outer diameter, inner diameter, planar multi-pole magnet magnetizing schematic diagram.
We are a supplier of motor magnets, we can provide multi-pole ferrite ring, multi-pole NdFeB ring, if you need multi-pole ring for your project, you can contact us to provide you with ready-made or near-size samples for testing, and we also support personalized customization.
Highly relevant article;
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