If they are allowed to snap together violently small sharp chips can be thrown off. 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. We keep stock of a huge range of neodymium magnets.Neodymium magnets are used where a small size and maximum power are needed. They are available in a wide range of shapes and sizes. The pull forces of these strong bar magnets are from 0.36 LB up to 600 LBs. The Rare Earth Bar Magnets are available in grades N35, N40, N42, N45, N48, N50 & N52. There are many major production steps plus. Our strong Neodymium Bar Magnets are available, with the length from 1/8' up to 8'. These magnets are very hard and therefore machining these post production is not recommended. Machining and Grinding Plating/Coating Magnetizing Packing and Shipping. Neodymium magnets are the strongest known. Strong Neodymium Rare-Earth Magnets Neodymium nee-oh-dim-ee-uh m magnets (also known as NdFeB, Rare Earth, or Neo magnets). 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. Neodymium is a rare earth metal component mischmetal (mixed metal) which can be used to create powerful magnets.
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