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NdFeB Magnet Application Range

Dec. 14, 2020


Electroacoustic field: speakers, receivers, microphones, alarms, stage audio, car audio, etc.


Electronic appliances: permanent magnet mechanism vacuum circuit breaker, magnetic holding relay, watt-hour meter, water meter, sound meter, reed switch, sensor, etc.


Motor field: VCM, CDDVD-ROM, generators, motors, servo motors, micro motors, motors, vibration motors, etc.


Mechanical equipment: magnetic separation, magnetic separator, magnetic crane, magnetic machinery, etc.


Medical and health care: nuclear magnetic resonance instrument, medical equipment, magnetic therapy health products, magnetized fuel economizer, etc.


Other industries: magnetized anti-wax device, pipe descaler, magnetic fixture, automatic mahjong machine, magnetic locks, door and window magnetism, stationery magnetism, luggage magnetism, leather magnetism, toy magnetism, tool magnetism, craft gift packaging, etc.


Samarium Cobalt Magnets

Samarium Cobalt Magnets


The third-generation rare earth permanent magnet NdFeB is the most Powerful Permanent Magnet among contemporary magnets. Its BHmax value is 5-12 times that of ferrite magnets and 3-10 times that of alnico magnets; its coercivity is equivalent to 5-10 times that of ferrite magnets and 5- 15 times, its potential magnetic properties are extremely high, and it can suck up heavy objects 640 times its own weight.


Since the main raw material iron of neodymium iron boron magnets is very cheap, the reserve of rare earth neodymium is 10-16 times more than that of samarium, so its price is much lower than that of samarium cobalt magnets.


The mechanical properties of neodymium iron boron magnets are better than Samarium Cobalt Magnets and alnico magnets, and it is easier to cut, drill and process complex shapes.


The disadvantage of neodymium iron boron magnet is its poor temperature performance, large magnetic loss when used at high temperature, and low maximum working temperature. Generally, it is about 80 degrees Celsius, and the maximum working temperature of a specially treated magnet can reach 200 degrees Celsius.


Because the material contains a lot of neodymium and iron, it is easy to rust and it is also a major weakness. Therefore, neodymium iron boron magnets must be surface coated. It can be electroplated with nickel, zinc, gold, chromium, epoxy resin, etc.


NdFeB Magnets are widely used in aerospace, electronics, electromechanical, instrumentation, medical and other fields. Moreover, non-technical applications are becoming more widely used, such as magnets, toys, jewelry, etc.


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