Neodymium Iron Boron (NdFeB) or ‘Neo’, is a super high power magnet material that is generally considered to be the strongest of the permanent magnet materials.They will maintain their magnetism indefinitely unless they are subjected to temperatures over 80˚C when they will then lose their magnetism permanently. High (100˚C-120˚C) and Ultra High (150˚C-180˚C) temperature versions are available for customers with specific requirements. Neo’s are Nickel plated for both cosmetic and protection reasons and this makes them bright silver in colour. These magnets are very hard and therefore machining these post production is not recommended.
They are available in a wide range of shapes and sizes. Generally the North Pole is on the largest flat face, with the South on the opposite face. We recommend extreme caution when handling even small Neo magnets as the attractant forces are very powerful which can result in injury. If they are allowed to snap together violently small sharp chips can be thrown off.