Neodymium is a rare earth metal and a special material: Combined with iron and boron it creates the currently strongest permanent magnets in the world. They can be produced in various shapes (discs, blocks, cubes, rings, rods and spheres). Their nickel-copper-nickel coating lends them an appealing silver surface.
NdFeB magnets applied range:
Acoustic: loudhailer, receiver, microphone, annunciator, sound stage, car audio etc.
Electronics: watt-hour meter, water meter, noise meter, transducer etc,
Motor: VCM, CDDVD-ROM, dynamo, electromotor, servo motor, Pilot motors, motor, vibrator motor.
Machinery and equipment: magnetic separator, magnetic hanging