Magnets


customized AlNiCo magnet

Custom Magnet Supplier and Manufacturer

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.

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 magnets, permanent magnets, magnet rods, and other magnets of different materials and shapes. We have 15 years of 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.

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Custom Magnets

As a 15 years magnets manufacturer:

  • We support customize make low-temperature and high-temperature resistant magnet assemblies.
  • We support customize make general materials and special materials, strong magnetic.
CoatingColorThicknessNeutral SSTN/mm2Effect to FluxWorking Temp.
(Barrel Coating) NiCuNiSilver5-20um72h7.01.0%<200℃
(Rack Coating) NiCuNiSilver5-20um48h7.01.0%<200℃
ZnBlue and White4-15um48h10.0N/A<200℃
CZnMulticolor4-15um48hN/AN/A<200℃
NiCu+SnSilver and White5-20um72hN/AN/A<180℃
NiSilver3-2um96hN/AN/A<200℃
Black EpoxyBlack10-20um240h15.50.5%<200℃
NiCu+EpoxyBlack20-35um500 hN/AN/A<200℃
Zn+EpoxyBlack15-25um240hN/AN/A<200℃
AlSilver and White4-15um720hN/AN/A<200℃

  • We absolutely also support various finishing methods like:
1. Zinc plating (bright and clear film with low corrosion resistance)Used in high temperature and slightly corrosive conditions or limited anti-corrosion occasions where the surface is resistant to short-term pollution and discoloration
2. Zinc plating layer (rainbow or dark film with higher corrosion resistance)Used in harsh atmospheric environments and high-demand anti-corrosion occasions
3. Nickel plating layer (including copper + nickel plating layer)Exposure to the indoor atmospheric environment where condensation may occur, and it is required to ensure long-term stability and long service life of appearance and internal performance
4. Nickel + tin electroplating layerFor the occasions where the surface can be soldered and electrically contacted
5. Electrophoresis layerUsed in harsh atmospheric environments and occasions requiring high radiation protection
6. Phosphate layerIt has a certain short-term rust prevention ability, which is used for unfinished halfway transportation and rust prevention of short-term storage. The more ideas come from you, the more chances to change the world.
Material Grades: N35–N52, N35M–N50M, N35H–N48H, N35SH–N45SH, N28UH–N42UH, N28EH–N40EH
Support Coating:Ni-Cu-Ni, Black Nickel, Zn, Sn, Au, Ag, Black Epoxy, Phosphated for All Neodymium Magnet

If you have any needs, please contact KENENG, we will provide you with the best quality service.

Methods of Manufacturing Process

1. General Magnet Manufacture Process

  • Raw material
  • Dosing
  • Mixing
  • Smelting
  • Hydrogen
  • Embrittlement
  • Airstream mill
  • Molding
  • Sintering
  • Functional test
  • Machining
  • Finishing
  • Visual inspection
  • Magnetization
General Magnet Manufacture Process

2. The Other Methods

  • Batching
  • Melting ingot
  • Powder making
  • Pressing
  • Sintering tempering
  • Magnetic detection
  • Grinding processing
  • Pin cutting processing
  • Electroplating
  • Magnetization

The batching is the basis, sintering temper is the key production tool of the Ndfeb magnet:

Magnet production equipment

Case Products of Magnets

The Order Processes of Magnets

the order process of magnet

Magnets Classification

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, etc.

magnet sort by material

Classification by Materials

(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).

Classification 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.

magnet sort by shapes

Classification by Production Process

Rare earth permanent magnet materials (NdFeB Nd2Fe14B) are divided into the following 3 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.


Application Industries of Magnets

  • 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.

For Example:

Our Strengths

In the market competition is increasingly fierce today, we with high quality, reasonable price, good service to win the majority of new and old customers praise!

  • We have a complete and scientific quality management system.
  • KENENG is recognized by the industry for its product quality, integrity, and strength.
  • We have strictly QC from raw materials to output products.
  • Own factory, advanced equipment, and technology, a variety of specifications and sizes, adequate inventory, and support bulk purchases.

  • The use of advanced slicing and line cutting equipment, with professional, skilled operators, to keep the size of the product controlled in a reasonable range.
  • We have MSDS /ROHS/REACH/ISO 9001 certificates.
  • We are the supplier for Medtronic, Sakura, BBC, Xiaomi, Gree, ZTE, Haier, BYD, and so on. The business cooperation has been more than 10 years.

KENENG can produce neodymium strong magnet (circular, square), single-sided magnet, rubber magnet, ferrite black magnet, circular strong magnet, square strong magnet, ring strong magnet, countersunk strong magnet, screw hole strong magnet, straight hole strong magnet, strip strong magnet, special-shaped strong magnet, trapezoidal strong magnet, etc.

Our Honors

Packing & Delivery

Packing

Standard and custom carbide products will use specially designed boxes to ensure the safety of the goods during transportation.

Delivery

KENENG can provide multiple shipping methods for your goods, including sea and air, as well as multiple expresses: DHL/FedEx/UPS/TNT/Aramex, and so on.

Related News

FAQ

Yes, we can custom magnet and provide OEM/ODM service.

No problem. Air shipment is ok with our magnetic shield package.

We can make the solution if you tell us the application environment or working temperature. We can make the magnet in different liquids and high temperatures. Our R&D DPT will offer you an optional proposal to solve the problem.

The magnetism decline is neglected, that’s why we call it Permanent Magnet.

Yes. our magnet materials and surface coating are environmental protection. We have RoHS/REACH/ISO relative certificates.

Yes, we could offer free samples for standard magnets, and you need to pay the freight.

Magnet’s force is no influence on the human body, but it will influence your phone and electrical parts. Please keep away from electronic products and please be careful when you take and use them.