10pcs N50 Dia.4mm x 1.5mm Rare Earth Neodymium Magnets Disc Magnets

Description 10pcs N50 Dia 4mm x 1 5mm Rare Earth Neodymium Magnets Disc Fridge DIY MagnetsNeodymium chemical symbol Nd is element 60 on the periodic table It is a rare earth metal and forms one of the Lanthanides series When added to Iron Fe and Boron B chemical formula Nd14Fe21B the resultant magnets are the strongest magnets currently available Neodymium magnets are sometimes known as Neo Neod or NIB magnets Neodymium magnets are usually coated Nickel Copper Nickel plating to prevent the iron from rusting Neodymium block magnetwas made ofNdFeB have strong magnetic performances and appearance does not rust usually placed inroom temperature the maximumoperating temperature is 80C and it never will demagnetization Please be care whenbreak apartbecause Neodymium block magnet have strong Magnetism Specification Shape Disc RoundMagnetic face 4mm 1 5mm Dia Thickness Plating Ni Cu Ni Nickel Material NdFeBGrade N50Color SilverWeight 2gQuantity 10pcsApplications Acoustic field the speaker receiver microphone alarm stage audio car audio and so on Electronics permanent magnetic actuator vacuum circuit breakers magnetic relays meter meter sound meter a reed switch sensors Electrical field VCM CD DVD ROM generators motors servo motors micro motors motors vibration motors Machinery and equipment magnetic separation magnetic crane magnetic machinery Healthcare MRI scanners medical equipment magnetic health prod