ChinaRareearthMagnetsManufacturs Product Description Product nameBonded Ring Neodymium Magnets MaterialBonded Neodymium-Iron-Boron GradeBN-6 CoatingBlack epoxy ShapeRing Dimensional Tolerance+/-0.05mm Magnetization Direction4-Poles on OD Temperature Range (Deg C)0 to 100 Remanence(Br)550-620 mT Coercivity600 kA/m (BH) max44-56 Kj/m鲁 Pull strengthApprox. 5 lbs AdviseThis is not a toy. Inappropriate use might cause injury. Bonded Neodymium material is isotropic, so it can be magnetized through any direction, including multi-polar arrangements. Because the material is in an epoxy binder, it can be machined on a mill or ceramic magnet materials. According to customer's request, We can supply different size magnetic hook. Cathode electrophoresis coating, Parylene coating and epoxy resin coating for protecting magnet. It has wide application on sensors,motors, rotors, wind turbines, wind generators, loudspeakers,magnetic holder, filters automobiles and so on. Bonded Ring Neodymium Magnets are manufactured through the compression process. This process involves mixing neodymium powder with epoxy as a binder and pressing it into a die cavity with no magnetic field, thus making these magnets Isotropic. Pressed parts are then placed into the oven for curing. With relative low tooling cost and quick turnaround compression bonded neodymium magnets are the choice for a wide variety of applications. The final product can be epoxy coated for durability and more resistant to corrosion. Fostered with a team of dexterous professionals, we have been able to offer Bonded Ring Neodymium Magnets for our valuable clients. In addition, since Neodymium material is isotropic, it can be magnetized multi-polar, such as a N-S-N pattern on the outer diameter of a ring.ChinaRareearthMagnetsManufacturs website:http://www.ndfebmagnets.net/ndfeb-magnets/