Neodymium Bar Magnet


Custom Neodymium Bar Magnet Supplier and Manufacturer

Neodymium magnet, also known as NdFeB magnet, is a tetetic crystal system made of Neodymium, iron and boron (Nd2Fe14B).  In 1982, Sumitomo Special Metals’ Misaki Sagawa discovered neodymium magnets.  The magnetic energy product (BHmax) of this magnet was greater than that of a samarium cobalt magnet, making it the largest material in the world at the time.  Later, Sumitomo Special Metals successfully developed the powder metallurgy process and general motors successfully developed a melt-spinning process to make Ndfeb magnets.  The magnet is now the second most magnetic permanent holmium zero magnet and the most commonly used rare earth magnet.  NdFeB magnets are widely used in electronic products, such as mobile phones, headphones, hard drives, battery-powered tools, and so on.  

In order to avoid corrosion damage, it is necessary to do protective treatment on the surface of permanent magnet materials, such as gold, nickel, zinc, tin plating, and surface coating epoxy resin. 

Dongguan KENENG International Trading Co., Ltd can manufacturer and wholesale industrial neodymium magnets. The company has 15 years experiences in neodymium bar magnets design, manufacturing , coating and export to all over the world.

Are You an OEM Manufacturer?

Yes

Neodymium Bar Magnet Display

Custom Neodymium Bar Magnet

We support custom magnets according to customer drawings. We are available in a variety of sizes, styles, and materials, and if there is no stock that meets your requirements, we can customize industrial strength magnets to your specifications.

  • High magnetic force
  • never degauss
  • High anti-corrosion
  • High consistency
  • high operating temperature
  • long service life

The customized content mainly includes:

  • Size requirements (Length, width, height, Diameter, tolerance, etc.)
  • Material Requirements
  • Surface treatment requirements
  • Processing according to design drawings
  • Magnetization direction requirements
  • Magnet grade requirements
  • Other requirements

custom Neodymium Bar magnet

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

Case Products of Neodymium Bar Magnet

KENENG is a professional neodymium magnet manufacturer. We can manufacture neodymium strong magnet (circular, ring, square), single-sided magnet, rubber magnet, ferrite magnet, countersunk strong magnet, screw hole strong magnet, straight hole strong magnet, strip strong magnet, special-shaped strong magnet, etc. As a neodymium magnet supplier, KENENG has always been recognized by the industry for its integrity, strength, and high product quality.

KENENG has strictly QC from raw materials to output products.

We have MSDS /ROHS/REACH/ISO 9001 certificates.

Types of customization you can choose from

Materials

  • NdFeB
  • Ferrite
  • SmCo
  • Cobalt

Size

  • * Length*Width*Height

Finishing

  • Plating(Zn, Ni, Gold)
  • Epoxy
  • Electrophoresis
  • Passivation
  • Vacuum deposition, etc.

The magnetization direction:

The magnetization direction:
  • The largest area with magnets up and down is thickness magnetization.
  • The area on the left and right sides is magnetized.
  • The area at both ends of the length is magnetized, which is the side magnetization.
The magnetization direction:

Various magnets

Neodymium Bar magnet

Materials we can use on Neodymium Bar Magnet

Production process


The raw material
The main raw materials of Ndfeb magnets are: rare earth neodymium, rare earth praseodymium, pure iron, aluminum, boron iron alloy and other rare earth raw materials.

Machining tools
There are special slicing machine, wire cutting machine, flat mill, double-sided machine, punching machine, chamfering machine, electroplating equipment.

The process flow
Ndfeb magnet, samarium cobalt magnet, aluminum nickel cobalt magnet, ferrite magnet production process is also different. From the process, there are sintered Ndfeb magnet and bonded NdFEB magnet, we mainly talk about sintered NDFEB magnet.

Batching → melting ingot → powder making → pressing → sintering tempering → magnetic detection → grinding processing → pin cutting processing → electroplating → magnetization → finished product. The batching is the basis, sintering temper is the key production tools of Ndfeb magnet: melting furnace, jaw breaking machine, ball mill, air mill, pressing machine, vacuum sealing machine, isostatic press, sintering furnace, heat treatment vacuum furnace, magnetic tester, Gauss meter.

Related Products

Neodymium Bar Magnet Manufacturer in China

Our industrial strength magnets are used to adjust various functions. We have a variety of sizes, styles, and materials to choose from, including bar magnets, neodymium, rectangular, lift and cup magnets.

Our product lines include: cylindrical permanent magnetic assemblies, electro-magnets power supplies & demagnetizer, flexible magnetic material, magnetic sweeper, material handling & lifts magnets, rare earth magnets, strong magnetic, single magnetic, hook magnet, fishing magnet, ferrite, polishing magnetic ball, magnetic frame, magnetic bar, samarium cobalt magnetic, rubber magnetic, teaching magnet, magnetic tile, and has a complete scientific quality control system.

A large number of conventional size stock spot, guarantee fast delivery, welcome to explore more secrets of natural industrial wealth with us. For more information, you can contact us at any time.

Production equipment for Neodymium Bar Magnet

Type of magnet

Classification by shape : square magnet, tile magnet, profilar magnet, cylindrical magnet, circular magnet, wafer magnet, magnet bar magnet, magnetic frame magnet.

Classification by attribute: Samarium cobalt magnet, Ndfeb magnet (strong magnet), ferrite magnet, aluminum nickel cobalt magnet, iron chromium cobalt magnet, industry magnet:  Magnetic components, motor magnets, rubber magnets, plastic magnets and so on .

Types of NdFeB Magnets

GradeRemanence InductionCoercive ForceIntrinsic Coercive ForceMaximum Energy ProductWorking TemperatureDensity
BrHcBHcJ(BH)maxTwρ
TKGsKA/mKOeKA/mKOeKJ/m³MGOeg/cm3
N381.23-1.3012.3-13.0≥876≥11≥955≥12287-31836-40≤80≥7.5
N401.26-1.3212.6-13.2≥876≥11≥955≥12302-33438-42≤80≥7.5
N421.29-1.3512.9-13.5≥876≥11≥955≥12318-35040-44≤80≥7.5
N451.32-1.3813.2-13.8≥876≥11≥955≥12334-36642-46≤80≥7.5
N481.37-1.4313.7-14.3≥876≥11≥955≥12358-39045-49≤80≥7.5
N501.40-1.4514.0-14.5≥876≥11≥955≥12374-40647-51≤80≥7.5
N521.42-1.4814.2-14.8≥836≥10.5≥876≥11390-42249-53≤80≥7.5
N551.46-1.5114.6-15.1≥860≥10.8≥955≥12406-43851-55≤80≥7.5
N38M1.23-1.3012.3-13.0≥915≥11.5≥1114≥14287-31836-40≤100≥7.5
N40M1.26-1.3212.6-13.2≥939≥11.8≥1114≥14302-33438-42≤100≥7.5
N42M1.29-1.3512.9-13.5≥963≥12.1≥1114≥14318-35040-44≤100≥7.5
N45M1.32-1.3813.2-13.8≥987≥12.4≥1114≥14334-36642-46≤100≥7.5
N48M1.37-1.4313.7-14.3≥1019≥12.8≥1114≥14358-39045-49≤100≥7.5
N50M1.40-1.4514.0-14.5≥1043≥13.1≥1114≥14374-40647-51≤100≥7.5
N52M1.42-1.4814.2-14.8≥1059≥13.3≥1114≥14390-42249-53≤100≥7.5
N54M1.46-1.5114.6-15.1≥995≥12.5≥1035≥13406-43851-55≤100≥7.5
N35H1.17-1.2411.7-12.4≥876≥11.0≥1353≥17263-29533-37≤120≥7.5
N38H1.23-1.3012.3-13.0≥915≥11.5≥1353≥17286-31836-40≤120≥7.5
N40H1.26-1.3212.6-13.2≥939≥11.8≥1353≥17302-33438-42≤120≥7.5
N42H1.29-1.3512.9-13.5≥963≥12.1≥1353≥17318-35040-44≤120≥7.5
N45H1.32-1.3813.2-13.8≥987≥12.4≥1353≥17334-36642-46≤120≥7.5
N48H1.37-1.4313.7-14.3≥1011≥12.7≥1353≥17358-39045-49≤120≥7.5
N50H1.40-1.4514.0-14.5≥1027≥12.9≥1353≥17374-40647-51≤120≥7.5
N52H1.42-1.4814.2-14.8≥1059≥13.3≥1353≥17390-42249-53≤120≥7.5
N33SH1.14-1.2111.4-12.1≥852≥10.7≥1592≥20247-27931-35≤150≥7.5
N35SH1.17-1.2411.7-12.4≥876≥11.0≥1592≥20263-29533-37≤150≥7.5
N38SH1.23-1.2912.3-12.9≥915≥11.5≥1592≥20287-31836-40≤150≥7.5
N40SH1.26-1.3212.6-13.2≥939≥11.8≥1592≥20302-33438-42≤150≥7.5
N42SH1.29-1.3512.9-13.5≥963≥12.1≥1592≥20318-35040-44≤150≥7.5
N45SH1.32-1.3813.2-13.8≥987≥12.4≥1592≥20334-36642-46≤150≥7.5
N48SH1.37-1.4313.7-14.3≥1011≥12.7≥1592≥20358-39045-49≤150≥7.5
N50SH1.40-1.4514.0-14.5≥1027≥12.9≥1592≥20374-40647-51≤150≥7.5
N52SH1.42-1.4814.2-14.8≥1035≥13≥1512≥19390-42249-53≤150≥7.5
N30UH1.08-1.1310.8-11.3≥796≥10.0≥1990≥25223-25528-31≤180≥7.5
N33UH1.14-1.1811.4-11.8≥852≥10.5≥1990≥25247-27931-35≤180≥7.5
N35UH1.17-1.2411.7-12.4≥876≥11.0≥1990≥25263-29533-37≤180≥7.5
N38UH1.23-1.2912.3-12.9≥915≥11.5≥1990≥25287-31836-40≤180≥7.5
N40UH1.26-1.3212.6-13.2≥939≥11.8≥1990≥25302-33438-42≤180≥7.5
N42UH1.28-1.3512.8-13.5≥963≥12.1≥1990≥25310-35039-44≤180≥7.5
N45UH1.32-1.3813.2-13.8≥987≥12.4≥1990≥25334-36642-46≤180≥7.5
N48UH1.37-1.4213.7-14.2≥1019≥12.8≥1910≥24358-39045-49≤180≥7.5
N30EH1.08-1.1510.8-11.5≥812≥10.2≥2388≥30223-25528-32
≤200
≥7.5
N33EH1.14-1.2111.4-12.1≥851≥10.7≥2388≥30247-27931-35≤200≥7.5
N35EH1.17-1.2411.7-12.4≥876≥11.0≥2388≥30263-29533-37≤200≥7.5
N38EH1.23-1.2912.3-12.9≥915≥11.5≥2388≥30287-31836-40≤200≥7.5
N40EH1.26-1.3212.6-13.2≥939≥11.8≥2388≥30302-33438-42≤200≥7.5
N42EH1.28-1.3512.8-13.5≥963≥12.1≥2388≥30310-35039-44≤200≥7.5
N45EH1.33-1.3813.3-13.8≥995≥12.5≥2308≥29334-36642-46≤200≥7.5
N28AH1.04-1.1210.4-11.2≥772≥9.7≥2786≥35207-23926-30≤230≥7.5
N30AH1.08-1.1510.8-11.5≥812≥10.2≥2786≥35223-25528-32≤230≥7.5
N33AH1.14-1.2111.4-12.1≥852≥10.7≥2786≥35247-27931-35≤230≥7.5
N35AH1.17-1.2411.7-12.4≥876≥11.0≥2786≥35263-29533-37≤230≥7.5
N38AH1.23-1.2712.3-12.7≥923≥11.6≥2786≥35287-31836-40≤230≥7.5
N40AH1.26-1.3112.6-13.1≥939≥11.8≥2628≥33302-33438-42≤230≥7.5
N42AH1.29-1.3512.9-13.5≥955≥12.0≥2628≥33318-35040-44≤230≥7.5
G48SH1.37-1.4213.7-14.2≥1011≥13≥1592≥20358-39045-49≤150≥7.5
G50SH1.40-1.4514.0-14.5≥1027≥13.2≥1592≥20374-40647-51≤150≥7.5
G52SH1.42-1.4814.2-14.8≥1067≥13.4≥1592≥20390-42249-53≤150≥7.5
G55SH1.46-1.5114.6-15.1≥1083≥13.6≥1592≥20406-43851-55≤150≥7.5
G45UH1.33-1.3813.3-13.8≥978≥12.4≥1990≥25334-36642-46≤180≥7.5
G48UH1.37-1.4213.7-14.2≥1027≥12.9≥1990≥25358-39045-49≤180≥7.5
G50UH1.40-1.4514.0-14.5≥1051≥13.2≥1990≥25374-40647-51≤180≥7.5
G52UH1.42-1.4814.2-14.8≥1067≥13.4≥1990≥25390-42249-53≤180≥7.5
G54UH1.46-1.5114.6-15.1≥1075≥13.5≥1990≥25406-43851-55≤180≥7.5
G40EH1.26-1.3112.6-13.1≥955≥12.0≥2388≥30302-33438-42≤200≥7.5
G44EH1.29-1.3512.9-13.5≥971≥12.2≥2388≥30318-35040-44≤200≥7.5
G46EH1.33-1.3813.3-13.8≥1011≥12.7≥2388≥30334-36642-46≤200≥7.5
G48EH1.37-1.4213.7-14.2≥1027≥12.9≥2388≥30358-39045-49≤200≥7.5
G50EH1.40-1.4514.0-14.5≥1051≥13.2≥2308≥29374-40647-51≤200≥7.5

Production equipment for Neodymium Bar Magnet

Application industries of Neodymium Bar magnet

For example:

  • Electroacoustic field: microphones, speakers, 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: generator, motor, servo motor, micro motor, vibration motor, etc.
  • Mechanical equipment: magnetic separation, magnetic machinery, magnetic crane, etc.
  • Healthcare: nuclear magnetic resonance apparatus, medical equipment, magnetic therapy health care products, magnetized fuel saver, etc. Strong bar magnets are very common in motors and power tools. Strong magnetism, also known as NdFeB, is characterized by strong magnetic force, which can absorb objects more than 600 times its own weight. Has extremely high magnetic properties. Coupled with its small size and light weight, its practicality far exceeds that of other magnets.

FAQ

Please give us your requirements of GRADE,SIZE,PLATING,DEMAND of the magnets your wanna (design drawing is better),then we will give you a preliminary’s quotation within 24 hours.
You can also send us samples,then we will according the samples to produce.

Free charge samples could be offered only inventory available.

Customized sample will be charged base on material and labor cost.

MSDS /ROHS/REACH/ISO 9001 ,Dun & Bradstreet verified.