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sinter ndfeb magnet

 

Sintered rare earth magnets are manufactured by a powder metallurgical process which involves the sintering of powder compacts under vacuum. Magnets may be produced in large blocks for subsequent processing, or as tailor made components made die pressing. Coatings may be applied depending on the expected environment.   

Super-Strength Rare Earth Magnet----Sintered NdFeB magnets, have the characteristics of :

  • Super strong Br Resident induction.Excellent demagnetization resistance capability.

  • Good Price relative to its high magnetic properties.

  • Coating is needed for NdFeB

  • Surface Treatment Method: Type Information
    Metallic Zinc, Nickel, Nickel+Nickel, Copper+Nickel, Nickel+Copper+Nickel,
    Gold, Organic Epoxy, Nickel+Epoxy coating
    Temporary Surface: Passivation

Magnetic Properties of Sintered NdFeB Magnets

 

Remanence
Br

Coercive Force
Hcb

Intrinsic Coercive force
Hci

Max Energy Product
(BH) max

Max. Work temperature

No

Material

KG

T

KOe

KA/m

KOe

KA/m

MGOe

KJ/m

1

N-33

11.4-11.8

1.14-1.18

≥10.5

≥836

≥12

≥955

31-33

247-263

80

2

N-35

11.4-11.8

1.18-1.28

≥10.8

≥836

≥12

≥955

33-36

263-287

80

3

N-38

11.8-12.3

1.18-1.28

≥10.8

≥860

≥12

≥955

36-39

287-310

80

4

N-40

12.7-12.9

1.27-1.29

≥11.0

≥876

≥12

≥955

38-41

303-326

80

5

N-42

12.9-13.3

1.29-1.33

≥10.5

≥836

≥12

≥955

40-43

318-342

80

6

N-45

13.3-13.8

1.33-1.38

≥9.5

≥756

≥12

≥955

43-46

342-366

80

7

N48

13.7-14.2

1.37-1.42

10.5-13

836-1035

≥11

≥875

46-49

366-390

80

8

N50

13.9-14.5

1.39-1.45

10.5-13

836-1035

≥11

≥875

47-51

374-406

80

9

N-30M

10.8-11.4

1.08-1.14

≥9.8

≥780

≥14

≥1114

28-31

223-247

100

10

N-33M

11.4-11.8

1.14-1.18

≥10.3

≥820

≥14

≥1114

31-33

247-263

100

11

N-35M

11.8-12.3

1.18-1.23

≥10.8

≥860

≥14

≥1114

33-36

263-287

100

12

N-38M

12.3-12.7

1.23-1.27

≥11.0

≥876

≥14

≥1114

38-41

303-326

100

13

N-40M

12.7-12.9

1.27-1.29

≥11.4

≥907

≥14

≥1114

38-41

303-326

100

14

N42M

12.8-13.4

1.28-1.34

10.8-11.4

859-907

≥14

≥1114

40-43

319-343

100

15

N45M

13.3-13.8

1.33-1.38

12.4-13.4

987-1066

≥14

≥1114

43-46

343-366

100

16

N48M

13.7-14.2

1.37-1.42

12.8-13.8

1020-1098

≥14

≥1114

46-49

366-390

100

17

N-30H

10.8-11.4

1.08-1.14

≥10.2

≥812

≥17

≥1353

28-31

223-247

120

18

N-33H

11.4-11.8

1.14-1.18

≥10.6

≥844

≥17

≥1353

31-33

247-263

120

19

N-35H

11.8-12.3

1.18-1.28

≥11.0

≥876

≥17

≥1353

33-36

263-287

120

20

N-38H

12.3-12.7

1.23-1.27

≥11.2

≥890

≥17

≥1353

36-39

287-310

120

21

N-40H

12.7-12.9

1.27-1.29

≥11.5

≥915

≥17

≥1353

38-41

303-326

120

22

N-42H

12.8-13.4

1.28-1.34

≥12

≥955

≥17

≥1353

40-43

318-342

120

23

N-45H

13.3-13.8

1.33-1.38

≥12.4

≥986

≥17

≥1353

43-46

342-366

120

24

N-48H

13.6-14.2

1.36-1.42

≥12.8

≥1018

≥16

≥1273

45-49

358-390

120

25

N-30SH

10.8-11.4

1.081.14

≥10.0

≥796

≥21

≥1672

28-31

223-247

150

26

N-33SH

11.4-11.8

1.14-1.18

≥10.5

≥836

≥21

≥1672

31-34

247-276

150

27

N-35SH

11.8-12.3

1.18-1.23

≥11.0

≥876

≥21

≥1672

33-36

263-278

150

28

N-38SH

12.3-12.7

1.23-1.27

≥11.4

≥907

≥21

≥1672

36-39

278-310

150

29

N-42SH

12.8-13.4

1.28-1.34

≥12

≥955

≥20

≥1592

39-42

310-334

150

30

N-28UH

10.5-10.8

1.05-1.08

≥9.5

≥756

≥21

≥1672

26-29

207-231

180

31

N-30UH

10.8-11.4

1.08-1.14

≥9.5

≥756

≥25

≥1990

28-31

223-247

180

32

N-33UH

11.4-12.1

1.14-1.21

≥10.1

≥804

≥25

≥1990

31-34

247-271

180

33

N-35UH

11.7-12.4

1.17-1.24

≥10.5

≥836

≥25

≥1990

33-36

263-287

180

34

N-38UH

12.2-12.9

1.22-1.29

≥11

≥875

≥25

≥1990

36-39

287-310

180

35

N-40UH

12.5-13.3

1.25-1.33

≥11.3

≥899

≥25

≥1990

38-41

302-326

180

36

N-28EH

10.5-10.8

1.05-1.08

≥9.5

≥756

≥25

≥2388

26-29

207-231

200

37

N-30EH

10.8-11.4

1.08-1.14

≥9.5

≥756

≥30

≥2388

28-31

223-241

200

38

N-33EH

11.4-12.1

1.14-1.21

≥10.7

≥852

≥30

2388

31-35

247-379

200

39

N-35EH

11.7-12.4

1.17-1.24

≥10.9

≥868

≥30

≥2388

33-37

263-295

200

40

N-38EH

12.2-12.9

1.22-1.29

≥11.5

≥915

≥30

≥2388

36-40

287-318

200

Physical and Mechanical Properties

Thermal Conductivity

7.7 kcal/m-h-°C

Young’s Modulus

1.7 x 104 kg/mm2

Bending Strength

24 kg/mm2

Compressive Strength

80 kg/mm2

Electrical Resistivity

160 µ-ohm-cm/cm2

Density

7.4-7.5 g/cm3

Vickers Hardness

500 - 600

We are specialized in manufacturing all kinds of rare-earth permanent magnets, According to the customers request, we can produce all kinds of NdFeB magnets with different complicated shapes and get them magnetized with multi-poles. The products are widely used in motor, micromotor, computer, instrument, car, motorcycle, amera, watch, HiFi, electric appliances, office automation, toy, magnetic therapy and other fields of daily life.

NdFeB magnet is mainly made of Neodymium, Iron and Boron, with excellent magnetic property, abundant raw material and reasonable prices, NdFeB Magnet can be used as an ideal magnet in mini-motor, permanent magnetic resonance, sound device magnetic suspension system, magnetic transmission machine and iatrical apparatus and etc.

For NdFeB, its surface is usually treatd with some special methods. The surface treatment method include Zine, Nickel, Tin, Phosphor and Spray Epoxy Resin etc.
Abnormity NdFeB Magnet is Mainly composed of iron, neodymium, boron and many other rare earth elements, NdFeB magnets enjoy the strongest magnetic force up to today. For their high remanence, high corrective force, high energy product, reasonable price/performance ratio and availability to different dimensions, they are especially suitable to the research and development of light and compact products with high performance.

                                                                                                              

 

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We are professional manufacturer of permanent magnetic materials,such as NdFeb Magnet,AlNiCo Magnet,SmCo Magnet,Ferrite Magnet,Fridge Magnet and other magnetic tools,magnetic assembly and magnetic equipment..

                     

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Address:   No.8,Rd. Shuangfengshan,  Nan' An District, Chongqing, China,   P.C.:400060
Telephone:86-23-62534876
FAX:86-23-62534875
WhatsApp: +86 18696725118
E-mail: Xinchang@ndfeb-magnet.cn