The sample is a ferrite magnetic ring with an outer diameter of 30mm, a hole of 16mm, and a thickness of 3mm, wet pressing sintering process, black appearance, with a small concave point on the surface, which can be commonly magnetized or multi-pole axial magnetization, such as 4 poles, 6 poles, etc., about 1000-1200 Gauss, generally used in electrical appliances and sensors.
Actual measurement of thickness dimensions of 30x16x5mm ferrite ring magnet;
Near size ring ferrite;
Axial multipole ferrite ring magnet 4 poles 6 poles 30 x 16 x 5 mm