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The toroidal magnet is a kind of magnet shape widely used in the market at present. The materials are mainly composed of rare earth neodymium iron boron and black ferrite. The conventional magnetization is axial and radial. Did some netizens mention that the toroidal magnet can be magnetized with the inner ring (inner side)? Now let's introduce this problem to you by permanent magnet manufacturer Courage Xiaofu.
The ring magnet can be magnetized by the inner ring. For example, the inner ring is an S-pole and the outer ring is an N-pole full radial magnet, also known as a radiation ring. Most of them are made of NdFeB, which is mainly used in high-performance permanent magnet motors and sensors.
The other is the inner ring multipolar magnetization, which we call the inner filled multipolar magnetic ring, that is, the inner 1N1S arrangement, the outer 1S1N or the outer 1S1N, and the inner 1N1S. The materials are mostly sintered ferrite, injection molded ferrite, bonded NdFeB, etc.
The following figure shows several common magnetizing methods of magnetic ring (ring magnet)
The above is about the introduction of whether the ring magnet can be magnetized by the inner ring. Our company has more than 10 years of manufacturing experience in the magnet field, and is committed to the customized design, processing, production and manufacturing of non-standard magnets. If you have magnet problems, you are welcome to consult Courage about magnet quotations.
Annular magnets with associated internal magnetization;
Inner circle magnetized 10-pole neodymium magnet 32.6 x 28.6 x 6mm
Inner diameter magnetized 10 pole ring magnet 55.2 x 49.2 x 11.3 mm
More about magnetization of ring magnets;
Difference between inner rotor and outer rotor motor magnets
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