Applications of rare earth magnet

Applications of rare earth magnet

Since their prices became competitive in the 1990s, neodymium magnets have been replacing Ferrite and Alnico magnets in the many applications in modern technology requiring powerful magnets. Their greater strength allows smaller and lighter magnets to be used for a given application.

Common applications of rare-earth magnets include:

high performance AC servo motors

permanent magnet motors in cordless tools

wind turbine generators

Magnetic thrapy and medical instruments

Pot magnet for door locks,car,tools

speakers/headphones

computer hard disk drives

bicycle dynamos

MRI scanners

fishing reel brakes

traction motors and integrated starter generators in hybrid and electric vehicles

mechanically powered flashlights, employing rare earth magnets for generating electricity in a shaking motion or rotating (hand-crank-powered) motion

industrial uses such as maintaining product purity, equipment protection, and quality control

capture of fine metallic particles in lubricating oils (crankcases of internal combustion engines, also gearboxes and differentials), so as to keep said particles out of circulation, thereby rendering them unable to cause abrasive wear of moving machine parts

Other applications of rare-earth magnets include:

Neodymium magnet toys

Electric guitar pickups

Electrodynamic bearings

Linear motors (used in mag-lev trains, etc)

Stop motion animation: as tie-downs when the use of traditional screw and nut tie-downs is impractical.

Diamagnetic levitation experimentation, the study of magnetic field dynamics and superconductor levitation.

Launched roller coaster technology found on roller coaster and other thrill rides.

small LEDs attached to a button cell battery and a small rare earth magnet, used as a form of non-destructive graffiti and temporary public art.

Miniature figures, for which rare-earth magnets have gained popularity in the miniatures gaming community for their small size and relative strength assisting in basing and swapping weapons between models.