We sincerely welcome your business, and look forward to good cooperation. 
01CALL US
+86-574-87504597
03REQUEST INQUIRY
Product Inquire

Bestway is Your Best Choice for Magnets

We specialize in: Sintered NdFeB Magnets, Bonded NdFeB Magnets, Alnico Magnets, SmCo Magnets, Ferrite Magnets,
Rubber Magnets, Neocube, Magnetic Toys and some magnetic machineries and assembly.
You are here: Home / Products / Neodymium Permanent Magnet

Neodymium Permanent Magnet

1.Materials: Neodymium-Iron-Boron;

2. Technology: Utilizes new Sintered NdFeB magnet techniques and equipment such as strip casting, HDDR technology;

3. Magnetic properties: High coercive force, the max operation temp is up to 200 degree centigrade or 380 curie temperature;

4. Grades: N35-N52, 30M-50M, 30H-48H, 30SH-45SH, 30UH-40UH and 30EH-38EH;

5. Shapes: Various shapes

6. Size: According to customers' request;

7. Coatings: Ni, Zn, gold, copper, epoxy, chemical, parylene and so on;

8. Applications: Widely used in different applications, such as sensors, motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on.


NdFeB magnet

NdFeB magnet is an alloy magnet made from ND, Fe, B and other trace metal elements. It is a rare earth magnet known so far for the strongest magnetism as well as high performance (8MGOe-55MGOe) and good coercive force. Proven production process, strict quality assurance, complete technical service and remarkable cost performance.


Machining and tolerances

Neodymium is easily ground, although coolants must be used in the process to avoid spontaneous combustion of powder. Grinding should be completed before coating or plating is applied to protect the magnets from corrosion. Standard tolerances for neodymium magnets are +/-0.05mm for ground dimensions.


Temperature constraints

The temperature coefficient of neodymium has triggered several grades to be developed to meet specific operating requirements. Please refer to our chart of magnetic properties to compare the characteristics of each grade. Before choosing a neodymium magnet be sure to consider your application's maximum operating temperature.


Added value services

Our knowledgeable engineering department is always available to assist in determining the best grade and size of neodymium magnet for your application. We also offer coating and plating choices for magnets we custom-machine.


Technical Data of Sintered NdFeB Magnet

Grade

Br

Hcb

Hcj

(BH)max 

(Tw)

mT

(kGs)

kA/m

(kOe)

kA/m

(kOe)

kJ/m3

(MGOe)

N35

1170-1220

(11.7-12.2)

≥868

( ≥10.9)

≥955

( ≥12)

263-287

(33-36)

80 ºC

N38

1220-1250

(12.2-12.5)

≥899

( ≥11.3)

≥955

( ≥12)

287-310

(36-39)

80 ºC

N40

1250-1280

(12.5-12.8)

≥907

( ≥11.4)

≥955

( ≥12)

302-326

(38-41)

80 ºC

N42

1280-1320

(12.8-13.2)

≥915

( ≥11.5)

≥955

( ≥12)

318-342

(40-43)

80 ºC

N45

1320-1380

(13.2-13.8)

≥923

( ≥11.6)

≥955

( ≥12)

342-366

(43-46)

80 ºC

N48

1380-1420

(13.8-14.2)

≥923

( ≥11.6)

≥876

( ≥12)

366-390

(46-49)

80 ºC

N50

1400-1450

(14.0-14.5)

≥796

( ≥10.0)

≥876

( ≥11)

382-406

(48-51)

60 ºC

N52

1430-1480

(14.3-14.8)

≥796

( ≥10.0)

≥876

( ≥11)

398-422

(50-53)

60 ºC

30M

1080-1130

(10.8-11.3)

≥796

( ≥10.0)

≥1114

( ≥14)

223-247

(28-31)

100 ºC

33M

1130-1170

(11.3-11.7)

≥836

( ≥10.5)

≥1114

( ≥14)

247-263

(31-33)

100 ºC

35M

1170-1220

(11.7-12.2)

≥868

( ≥10.9)

≥1114

( ≥14)

263-287

(33-36)

100 ºC

38M

1220-1250

(12.2-12.5)

≥899

( ≥11.3)

≥1114

( ≥14)

287-310

(36-39)

100 ºC

40M

1250-1280

(12.5-12.8)

≥923

( ≥11.6)

≥1114

( ≥14)

302-326

(38-41)

100 ºC

42M

1280-1320

(12.8-13.2)

≥955

( ≥12.0)

≥1114

( ≥14)

318-342

(40-43)

100 ºC

45M

1320-1380

(13.2-13.8)

≥995

( ≥12.5)

≥1114

( ≥14)

342-366

(43-46)

100 ºC

48M

1360-1430

(13.6-14.3)

≥1027

( ≥12.9)

≥1114

( ≥14)

366-390

(46-49)

100 ºC

50M

1400-1450

(14.0-14.5)

≥1033

( ≥13.0)

≥1114

( ≥14)

382-406

(48-51)

100 ºC

30H

1080-1130

(10.8-11.3)

≥796

( ≥10.0)

≥1353

( ≥17)

223-247

(28-31)

120 ºC

33H

1130-1170

(11.3-11.7)

≥836

( ≥10.5)

≥1353

( ≥17)

247-271

(31-34)

120 ºC

35H

1170-1220

(11.7-12.2)

≥868

( ≥10.9)

≥1353

( ≥17)

263-287

(33-36)

120 ºC

38H

1220-1250

(12.2-12.5)

≥899

( ≥11.3)

≥1353

( ≥17)

287-310

(36-39)

120 ºC

40H

1250-1280

(12.5-12.8)

≥923

( ≥11.6)

≥1353

( ≥17)

302-326

(38-41)

120 ºC

42H

1280-1320

(12.8-13.2)

≥955

( ≥12.0)

≥1353

( ≥17)

318-342

(40-43)

120 ºC

45H

1300-1360

(13-13.6)

≥963

( ≥12.1)

≥1353

( ≥17)

326-358

(43-46)

120 ºC

48H

1370-1430

(13.7-14.3)

≥995

( ≥12.5)

≥1353

( ≥17)

366-390

(46-49)

120 ºC

30SH

1080-1130

(10.8-11.3)

≥804

( ≥10.1)

≥1592

( ≥20)

223-247

(28-31)

150 ºC

33SH

1130-1170

(11.3-11.7)

≥844

( ≥10.6)

≥1592

( ≥20)

247-271

(31-34)

150 ºC

35SH

1170-1220

(11.7-12.2)

≥876

( ≥11.0)

≥1592

( ≥20)

263-287

(33-36)

150 ºC

38SH

1220-1250

(12.2-12.5)

≥907

( ≥11.4)

≥1592

( ≥20)

287-310

(36-39)

150 ºC

40SH

1240-1280

(12.5-12.8)

≥939

( ≥11.8)

≥1592

( ≥20)

302-326

(38-41)

150 ºC

42SH

1280-1320

(12.8-13.2)

≥987

( ≥12.4)

≥1592

( ≥20)

318-342

(40-43)

150 ºC

45SH

1320-1380

(13.2-13.8)

≥1003

( ≥12.6)

≥1592

( ≥20)

342-366

(43-46)

150 ºC

28UH

1020-1080 

(10.2-10.8)

≥764

( ≥9.6)

≥1990

( ≥25)

207-231

(26-29)

180 ºC

30UH

1080-1130 

(10.8-11.3)

≥812

( ≥10.2)

≥1990

( ≥25)

223-247

(28-31)

180 ºC

33UH

1130-1170

(11.3-11.7)

≥852

( ≥10.7)

≥1990

( ≥25)

247-271

(31-34)

180 ºC

35UH

1180-1220

(11.8-12.2)

≥860

( ≥10.8)

≥1990

( ≥25)

263-287

(33-36)

180 ºC

38UH

1220-1250

(12.2-12.5)

≥876

( ≥11.0)

≥1990

( ≥25)

287-310

(36-39)

180 ºC

40UH

1240-1280

(12.5-12.8)

≥899

( ≥11.3)

≥1990

( ≥25)

302-326

(38-41)

180 ºC

28EH

1040-1090

(10.4-10.9)

≥780

( ≥9.8)

≥2388

( ≥30)

207-231

(26-29)

200 ºC

30EH

1080-1130

(10.8-11.3)

≥812

( ≥10.2)

≥2388

( ≥30)

223-247

(28-31)

200 ºC

33EH

1130-1170

(11.3-11.7)

≥836

( ≥10.5)

≥2388

( ≥30)

247-271

(31-34)

200 ºC

35EH

1170-1220

(11.7-12.2)

≥876

( ≥11.0)

≥2388

( ≥30)

263-287

(33-36)

200 ºC

38EH

1220-1250

(12.2-12.5)

≥899

( ≥11.3)

≥2388

( ≥30)

287-310

(36-39)

200 ºC

28AH

1040-1090

(10.4-10.9)

≥787

( ≥9.9)

≥2624

( ≥33)

207-231

(26-29)

230 ºC

30AH

1080-1130

(10.8-11.3)

≥819

( ≥10.3)

≥2624

( ≥33)

223-247

(28-31)

230 ºC

33AH

1130-1170

(11.3-11.7)

≥843

( ≥10.6)

≥2624

( ≥33)

247-271

(31-34)

230 ºC


  • Block Neodymium Magnet with 3M adhesive
    Concrete walls with slight uneven surface pose a great challenge to standard adhesive, the 0.4mm foam thickness of 3M VHB 4920 allows the adhesive surface to “mould” in to the peaks and valleys of concrete surface for maximum grip.
  • Radially Magnetized Ring Magnet N42
    This type of permanent magnet can be used in science projects or experiments, medical applications, cabinetry, water conditioning, loudspeakers and other commercial and industrial purposes. The higher permeance coefficient makes Neodymium ring magnets ideal for many applications.
  • Bonded Ring Neodymium Magnet
    Bonded NdFeB magnets are manufactured by binding rapid-quenching NdFeB powder. The powder is mixed with resin to form a magnet by compression molding with epoxy or infection molding with nylon.
  • Bonded Block Neodymium Magnet
    Various shapes of high dimensional accuracy can be produced without further processing. Surface is treated by epoxy coating or nickel-plating to prevent corrosion bonded magnet, bonded ndfeb magnet
  • Cylinder Neodymium Magnet with Mark
    An overview of the each kind of product is divided into several brands according to the maximum magnetic energy product size
    The grades of NdFeb magnetic materials are: N35 -- N52,35M -- 50M, 30H -- 48H,30SH -- 45SH, 28UH -- 35UH,28EH -- 35EH.
  • Bar Neodymium Magnet with Mark
    In December 2013, the process by the sichuan, Chinese Academy of Sciences system test. The corrosion resistance of use 20 to 30 years in the Marine climate condition, can be widely used in wind power heikki.
  • Disc Neodymium Magnet with Mark
    Use:
    Package industry, Jewelry, shoes, clothes, leather sheath,handbag,phone case, Electronic products case, suitcase, keyboard, watch, machine, wallet, computer bag, led industry, magnetic phone holder, poster board,door lock
    Notice:
    1. Be careful fragile and clip hand.
    2. Placed in a dry place, stored at room temperature!
    3. Careful draw them, close each other slowly and gently when connecting two magnets. Hard crushing cause magnet damage and cracks. 4. Not allowed Children play with naked neodymium magnet.
  • Neodymium Trapezoid Magnet with Mark
    Also known as the NdFeB magnet, the Neodymium magnet is a teband crystal composed of Neodymium, iron, and boron (Nd2Fe14B).
  • Disc NdFeB Magnet with Mark
    With a sintered ndfeb Japan, Germany, the European Union in the patent technologies such as the thawing, our country each big sintering factory of collaborative efforts, sintered ndfeb improve the product grade.
  • Block NdFeB Magnet with Mark
    Sintered NdFeb permanent magnetic material has excellent magnetic properties, widely used in electronics, power machinery, medical equipment, toys, packaging, hardware machinery, aerospace and other fields, the more common are permanent magnet motor, speaker, magnetic separator, computer disk drive, magnetic resonance imaging equipment and instruments
  • Disc Magnet with 3M adhesive
    Neodymium magnets with adhesive are powerful, compact magnetic discs with an easy pull-tab adhesive liner. Designed to save time and effort, this is definitely a less labor-intensive option and a benefit for those with poor dexterity.
  • 3M adhesive pasted Block Magnet
    Beneficial characteristics of NdFeB magnets include their very high energy product, very high coercive force, and moderate temperature stability. Drawbacks include lower mechanical strength, and low corrosion resistance when not properly coated or plated.
Ningbo Bestway Magnet Co. Ltd. is a professional and high-tech company which is committed to research, manufacture and develop of Rare Earth Magnet since 2000 located in Ningbo, China.

Product Links

Get In Touch

     No.2 Meifang Road, Dongqian Lake
       Tourism Resort, Ningbo, Zhejiang,
       China.
 

     +86-574-87504597, 27788030

     +86-574-87506907, 87506697

       
thomas03@bwmagnet.com

Feedback

Get in touch
©  2019 Ningbo Bestway Magnet Co., Ltd.  All Rights Reserved.