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A magnet is defined as an object which is capable of producing a magnetic field and attracting unlike poles and repelling like poles.

There are many types of magnets, which are generally divided into two categories: hard (permanent) magnets (magnetic retention for a long or permanent time) and soft magnets (magnetic for a short period of time). The magnets we call generally refer to permanent magnets.

Various types of magnets are used differently in various fields.

Magnets are used in maglev trains, the Electroacoustic industry(Speakers, signal receivers, microphones, alarm systems, professional stage audio, car audio, etc.) , microwave communication(Radar detection technology, satellite communication, remote control technology, electronic device tracking, electronic countermeasure technology must be applied, magnetron rectifier, magnetron wave tube, cathode ray, circulator, etc.) , Special tool metal material(Magnetized wax inhibitor, pipeline descaling device, magnetic fixture, electric mahjong table, magnetic lock, window, and door magnet, luggage leather magnet, luggage leather magnet, small toy magnet, special tool magnet, processing gift box packaging, etc.) , magnet therapy (Magnetic therapy cups, magnetic balls, magnetic therapy machines, magnetic therapy shoes, magnetic therapy caps, magnetic therapy bracelets, necklaces, etc.), new energy vehicle

Dongguan KENENG International Trading Co., Ltd is located in the rare earth raw material processing center of China. We are an excellent magnet manufacturing company. We can manufacture neodymium magnet, permanent magnet, magnet rod and other magnets of different materials and shapes. We have 15 years’ experience in magnets design, manufacturing, coating, and export all over the world, we have won a good reputation in this industry for our excellent and stable quality, prompt delivery, and fast response.

Magnet classification

Magnet Sort by material

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1) Alloy permanent magnet material

Including rare earth permanent magnet materials (NdFeB Nd2Fe14B), samarium cobalt (SmCo), aluminum nickel cobalt (AlNiCo)

(2) Ferrite permanent magnet material (Ferrite)

Magnet sort by shapes.

Tile-shaped magnets(Arc shape), special-shaped magnets, cylindrical magnets, ring magnets, disc magnets, block magnets, and various shapes can be punched holes.

Classification by production process

Rare earth permanent magnet material

Rare earth permanent magnet materials (NdFeB Nd2Fe14B) are divided into the following three types according to different production processes:

(1) Bonded NdFeB (Bonded NdFeB)

Bonded NdFeB is a composite NdFeB permanent magnet made by uniformly mixing NdFeB powder with binders such as resin, plastic, or low melting point metal, and then compressing, extruding, or injection molding. The product is formed once, without secondary processing, and can be directly made into various complex shapes. The bonded NdFeB has magnetism in all directions and can be processed into NdFeB compression molds and injection molds. High precision, excellent magnetic properties, good corrosion resistance, and good temperature stability.

(2) Sintered NdFeB (Sintered NdFeB)

The sintered NdFeB permanent magnets are smelted by jet milling and powder, with high coercivity value and extremely high magnetic properties. Its maximum magnetic energy product (BHmax) is more than 10 times higher than that of ferrite. Its own mechanical properties are also quite good, and it can be cut into different shapes and drilled. High-performance products have a maximum operating temperature of up to 200°C.

Because of its substance content, it is easy to cause rust, so different coating treatments must be applied to the surface according to different requirements. (Such as galvanized, nickel, environmentally friendly zinc, environmentally-friendly nickel, nickel-copper-nickel, environmentally-friendly nickel-copper-nickel, etc.). Very hard and brittle, with high resistance to demagnetization, high cost/performance ratio, not suitable for high operating temperatures (>200°C).

(3) Injection NdFeB (Zhusu NdFeB)

With extremely high precision, it is easy to make thin-walled rings or thin magnets with complex anisotropic shapes.

Widely Application Industries

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

Electronic appliances: permanent magnet mechanism vacuum circuit breakers, magnetic latching relays, watt-hour meters, water meters, sound meters, reed switches, sensors, 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.

Healthcare: nuclear magnetic resonance apparatus, medical equipment, magnetic therapy health care products, magnetized fuel saver, etc.

Other industries: magnetized wax inhibitor, pipe descaler, magnetic fixture, automatic mahjong machine, magnetic lock, door and window magnet, luggage magnet, leather magnet, toy magnet, tool magnet, craft gift packaging, etc.