5pcs 20x10x4mm N35 Strong Cuboid Magnets Rare Earth Neodymium Magnets With 4mm Hole

Description 5pcs 20x10x4mm N35 Strong Cuboid Magnets Rare Earth Neodymium Magnets With 4mm Hole Specification Grade N35Material NdFeB Rare Earth NeodymiumColor SilverShape CuboidSize 20x10x4mmHole Dia 4mmQuantity 5pcs Feature 1 Neodymium magnets are usually coated Nickel Copper Nickel plating to prevent the iron from rusting 2 Neodymium 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 3 Neodymium magnets are sometimes known as Neo Neod or NIB magnets Applications 1 Acoustic field the speaker receiver microphone alarm stage audio car audio and so on 2 Electronics permanent magnetic actuator vacuum circuit breakers magnetic relays meter meter sound meter a reed switch sensors 3 Electrical field VCM CD DVD ROM generators motors servo motors micro motors motors vibration motors 4 Machinery and equipment magnetic separation magnetic machinery 5 Models piling you can use small magnets to connect two widgets 6 Wedding corsage badges etc can be replaced with a magnet attracts every other clothes pins so as not to damage the dress 7 For the overlying metal drawing board for fixing the drawing paper Magnetic blackboard whiteboard fixed file drawings 8 Healthcare medical equipment magnetic health products and so on 9 Advertis