Sintered Ndfeb Magnets - The Strongest Rare Earth Magnets

Sintered Ndfeb Magnets - The Strongest Rare Earth Magnets

Material: Sintered NdFeB Magnet (Strong Magnets with Max. Working Temperature 230ºC  

Grade: N35, N38, N40, N42, N45, N48, N50, N52, 30M, 33M, 35M, 38M, 40M, 42M, 45M, 48M, 50M, 30H, 33H, 35H, 38H, 40H, 42H, 45H, 48H, 28SH, 30SH, 33SH, 35SH, 38SH, 40SH, 42SH, 45SH, 30UH, 33UH, 35UH, 38UH, 40UH, 28EH, 30EH, 33EH, 35EH,38EH, 28AH, 30AH, 33AH, 35AH

Shapes & Sizes: Block, Square, Disc, Cylinder, Ring, Arc, Wedge, Star, Bullet, Bread etc.

Coating: NiCuNi, Zn3+Cr, Black Epoxy, Sn, Cr, Au, Ag, NiCuNi+Black Epoxy, Phosphating, Passivated etc.

Magnetized or Unmagnetized?

Magnetization Direction: Through Thickness, Through Diameter, Multi-poles etc.

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Description

Sintered NdFeB magnets are the strongest rare earth magnets.

The main production technology is sintering process, we always test magnetic properties datas such as Br, BH, Hcj after sintering. NdFeB magnet is brittle, for some thin magnets, it is easy to be broken in the process of production. NdFeB magnets are easy to be corroded, so need to make surface finish.

Sintered NdFeB magnet performance excellent magnetic properties, are widely used in electronics, medical, therapy, equipments, tools, toys, packaging, hardware, aerospace, speaker, separator, motors, MRI, computer, mobile phone etc.

Magnetic Properties of Sintered NdFeB Magnet

Grade

Remanence

Coercive Force

Intrinsic Coercive Force

Max. energy product

Max.

Operating

Temperature

Br

Hcb

Hcj

(BH )

Tw

max  

mT

kA/m

kA/m

kJ/m3

(kGs)

(kOe)

(kOe)

(MGOe)

N35

1170-1220

>= 868

>=955

263-287

80ºC

(11.7-12.2)

( >= 10.9)

( >= 12)

(33-36)

N38

1220-1250

>=899

>=955

287-310

80ºC

(12.2-12.5)

( >= 11.3)

( >= 12)

(36-39)

N40

1250-1280

>= 907

>=955

302-326

80ºC

(12.5-12.8)

( >= 11.4)

( >= 12)

(38-41)

N42

1280-1320

>= 915

>=955

318-342

80ºC

(12.8-13.2)

( >= 11.5)

( >= 12)

(40-43)

N45

1320-1380

>= 923

>=955

342-366

80ºC

(13.2-13.8)

( >= 11.6)

( >= 12)

(43-46)

N48

1380-1420

>= 923

>=955

366-390

80ºC

(13.8-14.2)

( >=11.6)

( >= 12)

(46-49)

N50

1400-1450

>= 796

>=955

382-406

80ºC

(14.0-14.5)

( >= 10.0)

( >= 12)

(48-51)

N52

1430-1480

>= 796

>=955

398-422

80ºC

(14.3-14.8)

( >= 10.0)

( >= 12)

(50-53)

33M

1130-1170

>= 836

>= 1114

247-263

100ºC​

(11.3-11.7)  

(>= 10.5)

( >= 14)

(31-33)

35M

1170-1220

>= 868

>= 1114

263-287

100ºC  

(11.7-12.2)

( >= 10.9)

( >= 14)  

(33-36)

38M

1220-1250

>= 899

>= 1114

287-310

100ºC  

(12.2-12.5)

( >= 11.3)

( >= 14)

(36-39)

40M

1250-1280

>= 923

>= 1114

302-326

100ºC  

(12.5-12.8)

( >= 11.6)

( >= 14)

(38-41)

42M

1280-1320

>= 955  

>= 1114  

318-342  

100ºC  

(12.8-13.2)

( >= 12.0)

( >= 14)

(40-43)

45M

1320-1380

>= 995

>= 1114

342-366

100ºC  

(13.2-13.8)

( >= 12.5)

( >= 14)

(43-46)

48M

1360-1430

>= 1027

>= 1114

366-390

100ºC  

(13.6-14.3)

( >= 12.9)

( >= 14)

(46-49)

50M

1400-1450

>= 1033

>= 1114

382-406

100ºC  

(14.0-14.5)

( >= 13.0)

( >= 14)

(48-51)

35H

1170-1220

>= 868

>= 1353

263-287

120ºC  

(11.7-12.2)

( >= 10.9)

( >= 17)

(33-36)

38H

1220-1250

>= 899

>= 1353

287-310

120ºC  

(12.2-12.5)

( >= 11.3)

( >= 17)

(36-39)

40H

1250-1280

>= 923

>= 1353

302-326

120ºC  

(12.5-12.8)

( >= 11.6)

( >= 17)

(38-41)

42H

1280-1320

>= 955

>= 1353

318-342

120ºC  

(12.8-13.2)

( >= 12.0)

( >= 17)

(40-43)

45H

1320-1360

>= 963

>= 1353

326-358

120ºC  

(13.2-13.6)

( >= 12.1)

( >= 17)

(43-46)

48H

1370-1430

>= 995

>= 1353

366-390

120ºC  

(13.7-14.3)

( >= 12.5)

( >= 17)

(46-49)

35SH

1170-1220

>= 876

>= 1592

263-287

150ºC  

(11.7-12.2)

( >= 11.0)

( >= 20)

(33-36)

38SH

1220-1250

>= 907

>= 1592

287-310

150ºC  

(12.2-12.5)

( >= 11.4)

( >= 20)

(36-39)

40SH

1240-1280

>= 939

>= 1592

302-326

150ºC  

(12.5-12.8)

( >= 11.8)

( >= 20)

(38-41)

42SH

1280-1320

>= 987

>= 1592

318-342

150ºC  

(12.8-13.2)

( >= 12.4)

( >= 20)

(40-43)

45SH

1320-1380

>= 1003

>= 1592

342-366

150ºC  

(13.2-13.8)

( >= 12.6)

( >= 20)

(43-46)

28UH

1020-1080

>= 764

>= 1990

207-231

180ºC  

(10.2-10.8)

( >= 9.6)

( >= 25)

(26-29)

30UH

1080-1130

>= 812

>= 1990

223-247

180ºC  

(10.8-11.3)

( >= 10.2)

( >= 25)

(28-31)

33UH

1130-1170

>= 852

>= 1990

247-271

180ºC  

(11.3-11.7)

( >= 10.7)

( >= 25)

(31-34)

35UH

1180-1220

>= 860

>= 1990

263-287

180ºC  

(11.8-12.2)

( >= 10.8)

( >= 25)

(33-36)

38UH

1220-1250

>= 876

>= 1990

287-310

180ºC  

(12.2-12.5)

( >= 11.0)

( >= 25)

(36-39)

40UH

1240-1280

>= 899

>= 1990

302-326

180ºC  

(12.5-12.8)

( >=11.3)

( >= 25)

(38-41)

28EH

1040-1090

>= 780

>= 2388

207-231

200ºC  

(10.4-10.9)

( >= 9.8)

( >= 30)

(26-29)

30EH

1080-1130

>= 812

>= 2388

223-247

200ºC  

(10.8-11.3)

( >= 10.2)

( >= 30)

(28-31)

33EH

1130-1170

>= 876

>= 2388

247-271

200ºC  

(11.3-11.7)

( >= 10.5)

( >= 30)

(31-34)

35EH

1170-1220

>= 876

>= 2388

263-287

200ºC  

(11.7-12.2)

( >= 11.0)

( >= 30)

(33-36)

38EH

1220-1250

>= 899

>= 2388

287-310

200ºC  

(12.2-12.5)

( >= 11.3)

( >= 30)

(36-39)

28AH

1040-1090

>=787

>= 2624

207-231

230ºC  

(10.4-10.9)

( >= 9.9)

( >= 33)

(26-29)

30AH

(26-29)

>=819

>= 2624

223-247

230ºC  

(10.8-11.3)

( >= 10.3)

( >= 33)

(28-31)

33AH

1130-1170

>= 843

>= 2624

247-271

230ºC  

(11.3-11.7)

(>= 10.6)

( >= 33)

(31-34)

 Note:
· The above-mentioned data of magnetic parameters and physical properties are given at room temperature.

· The maximum working temperature of magnet is changeable due to ratio of length and diameter and environment factors.