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This is a radial 4-pole ferrite rotor magnet. The specific material is injection molded ferrite magnet without coating. The specific size is 29.8mm in outer diameter and 13mm in height. The size of the middle hole is 3.2mm and the surface magnetic field intensity is about 1450 Gauss. If you are interested in this product, please email us.
Picture of 4-pole rotor magnet sample with outer diameter of 29.8mm
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See more motor injection molded multipole magnet samples：https://www.dgcourage.com/zhuanti/injection-molded-ferrite-magnets/
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