This is a large size ring magnet, is made of sintered ceramic ferrite, belongs to the permanent magnet, the specific size of the outer diameter 220mm(8 11/16 "), the inner diameter 110mm, thickness 20mm, weight 2736g, although the magnetic force of the ferrite magnet is weak, but this large ring magnet is not only strong magnetic force and cheap, can be used for loudspeakers, Magnetic levitation, mechanical equipment inside.
We are wholesale manufacturer, we has perfectly controlled tolerances, strong magnetism, stable magnetism and support for customization! If you need to customize, please contact our customer service to explain the size, performance level, quantity, surface coating, tolerance requirements, magnetization direction, etc., we will customize production according to your technical requirements.
Larger size ring ferrite;
10 inch extra large speaker ferrite ring magnet 260 x 140 x 25/30 mm
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