Multipole 6-pole sintered ferrite ring magnet is a round shaped with a hole, the grade is Y30, the specific size is 25mm in outer diameter, the 13mm in inner diameter, 5mm in thickness. The magnetizing direction is radial, but we also can choose axial magnetization, the gauss is less than 2000Gs. The ferrite magnet is no plated and is black color. The tolerance generally is ±0.1mm, but sometimes we can reduce the tolerance if the shape is simple.
Generally speaking, ferrite magnets will not be coated or painted, because ferrite magnets have anti-oxidation and anti-corrosion properties, do not need to be processed through the coating to prevent corrosion. In addition, ferrite magnet have high-temperature resistance(250 ℃) and not easy to demagnetization, is one of the magnets in the low cost. If the customer's magnet strength requirements are less than 2000Gs, ferrite ring is also a good choice. Generally can be widely used in loudspeaker, audio, motor, fan, toys and crafts, is currently the most widely used permanent magnet.
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Which products are ferrite radial multipole magnet rings mainly used