Neodymium iron boron (NdFeB) magnets - Large Ring for Separator

China Magnets Source Material Ltd is your best choice. As a factory direct source, we can provide Neodymium Magnets of All Shapes and Sizes! Custom Ring & Tube Permanent Magnets for Sale Ring magnets are similar to cylinders or discs, but with a center hole. The central hole is plain for fixing on to a rod or for fixing in place with a non-countersunk bolt or screw. Magnetic Pen is a popular product designed for pen spinning. Because it uses 13 pieces neodymium magnet rings to form a tube to hold the ink cartridge. And the pen can be constructed or destructed easily in a snap. Do you know any other ring magnet? Neodymium Ring Magnet According to various uses, neodymium ring magnets are magnetized differently. Some magnet ring is diametrically magnetized, which means they are magnetized perpendicular to the axis of the hole. The North Pole is on one curved side and the South Pole is on opposite curved side. Therefore, they can be placed on a shaft to work with sensors or to generate electricity. ring magnet Some are radial ring magnet. But this limited by sizes and high cost of tooling charge and Coil fee. It is specifically made for motor rotor. Most of ring magnets are magnetized with their North and South Pole on opposite circular faces. They are used in many everyday appliances such as holding lenses, light, mobile phone, GPS etc. For more complex magnetization direction in sensor & motor application, you can find a solution by molded magnets. Samarium Cobalt (SmCo) Ring Magnets We provide smco ring magnets in many sizes. Most of customers order smco ring magnets in tiny, micro or mini size. The normal ring size is outer diameter 1.5-160mm, inner diameter 0.5-150mmm, height 0.3-150mm. big ring magnet The large smco ring magnets include OD160xID150x50mm & OD60xID40x150mm. The smallest magnet ring we made in mass production is D1.25xd0.39×0.78mm. These tiny smco ring magnets are usually use in semiconductor, precise instrument, and microwave device or wherever you need a small ring! For large diameter samarium cobalt rings, it’s not allowed to make too thin wall thickness or too height because brittle property will cause break in the process of assembly. COATING: NICUNI, ZN, EPOXY AND OTHERS SIZE: CUSTOMIZED MATERIAL: NEODYMIUM, SMCO AND OTHERS APPLICATION: WIDELY USED ON INDYSTRY AND DAILYLIFE