Description

Sell Neodymium Ring Magnets: Neodymium ring magnets are usually made by drilling and machining hole on disc magnets and they also can be made a ring shape directly in pressing machines if order quantity is large enough to make a new tooling for it. For some bigger ring magnets we also have to mill the inner diameter and outer diameter in order to guarantee the suitable size before coating and finally they will be coated Nickel(Ni-Cu=Ni), Black Nickel, Zinc(Trivalent), Epoxy, Stannum, Gold, Silver or Parylene etc in order to keep from rusting according to order requirement. And a serious of strict test such as salt spray test, coating thickness test, temperature and wet test and specification test and surface test etc will be made before shipment and all goods are shipped to customer along with Test report and Curve Chart Report in order to guarantee the right quality of magnets. The highest grades for these products are N*2, N*8M, N*4H, N*2SH, N*8UH and N*5EH etc and the biggest size is about D**0 X d*0 x *0mm and this kind of Neodymium ring magnets are usually used in loudspeakers, mobile phones, DC motors and other electronic products and magnetic assemblies. If you are interested in this kind of products, please just let me know and we make sure we won&#**9;t let you down!