Oriental Magnetics Co. Ltd. (OM) is specialized in production and supply of various magnetic materials, with our own manufacturing capability in China. We offer various magnetic materials to our customers. In the past ten years, the customers from 15 countries use our magnets due to its high quality and low price. With the hard work of all staff in OM, we supply more than 1000 standard specifications now, besides, our customers are also happy with our ability to fulfill their specific needs for magnets.

We offer customer materials from prototype to quantity production, helping them achieve the most effective use of our magnetic materials, but at a low price.

OM always aims to offer a better service and products to our customers, and we never stop improving our technology by working closely with our customers.

Hard-ferrite Soft-Ferrite NdFeB SmCo Alnico Pot Magnets Magnetic Products Microwave Ferrite Products
 

 

 Sintered NdFeB

  • Produced from mixture of rare earth Neodymium-Iron-Boron.

  • With highest energy product among the present permanent magnet.

  • Operating temperature range from 20C to +180C.

  • A coating to protect against oxidization is necessary Zinc, Nickel-Cu-Nickel, Passivated, Epoxy, Gold.

  • Available in very many shapes and sizes.

STANDARD SPECIFICATION FOR SINTERED NdFeB MAGNETS

 

No.

 

Grade

Remanence

Br

Coercive Force

bHc

Intrinsic Coercive Force

iHc

Max Energy Product

(BH)max

Working

Temp.

 
 

kGs

T

kOe

kA/m

kOe

kA/m

MGOe

kJ/m3

 

Max.

Min.

Max.

Min.

Max.

Min.

Max.

Min.

 

1

N35

12.5

11.8

1.25

1.18

10.8

859

12

995

37

33

295

263

<80

 

2

N38

13.0

12.3

1.30

1.23

10.8

859

12

995

40

36

318

287

<80

 

3

N40

13.2

12.6

1.32

1.26

10.5

836

12

995

42

38

334

302

<80

 

4

N42

13.5

13.0

1.35

1.30

10.5

836

12

995

44

40

350

318

<80

 

5

N45

13.8

13.2

1.38

1.32

10.5

836

11

876

46

42

366

334

<80

 

6

N48

14.3

13.7

1.43

1.37

10.5

836

11

876

49

45

390

358

<80

 

7

N50

14.6

14.0

1.46

1.40

10.5

836

11

876

51

47

406

374

<80

 

8

N33M

12.2

11.4

1.22

1.14

10.7

852

14

1114

35

31

279

247

<100

 

9

N35M

12.5

11.8

1.25

1.18

11.0

876

14

1114

37

33

295

263

<100

 

10

N38M

13.0

12.3

1.30

1.23

11.6

915

14

1114

40

36

318

287

<100

 

11

N40M

13.2

12.6

1.32

1.26

11.8

939

14

1114

42

38

334

303

<100

 

12

N42M

13.5

13.0

1.35

1.30

12.0

955

14

1114

44

40

350

318

<100

 

13

N45M

13.8

13.2

1.38

1.32

12.2

971

14

1114

46

42

366

334

<100

 

14

N48M

14.3

13.7

1.43

1.37

12.5

994

14

1114

49

45

390

358

<100

 

15

N30H

11.7

10.9

1.17

1.09

10.2

812

17

1353

32

28

255

223

<120

 

16

N33H

12.2

11.4

1.22

1.14

10.7

851

17

1353

35

31

279

247

<120

 

17

N35H

12.5

11.8

1.25

1.18

11.0

875

17

1353

37

33

295

263

<120

 

18

N38H

13.0

12.3

1.30

1.23

11.6

915

17

1353

40

36

318

287

<120

 

19

N41H

13.2

12.6

1.32

1.26

11.8

939

16

1274

42

38

334

302

<120

 

20

N44H

13.7

13.0

1.37

1.30

12.1

963

16

1274

45

41

358

326

<120

 

21

N46H

14.0

13.3

1.40

1.33

12.5

994

16

1274

47

43

374

342

<120

 

22

N48H

14.3

13.7

1.43

1.37

12.8

1018

16

1274

49

45

390

358

<120

 

23

N30SH

11.7

10.9

1.17

1.09

10.2

812

20

1592

32

28

255

223

<150

 

24

N33SH

12.2

11.4

1.22

1.14

10.7

851

20

1592

35

31

279

247

<150

 

25

N35SH

12.5

11.8

1.25

1.18

11.0

876

20

1592

37

33

295

263

<150

 

26

N39SH

13.0

12.3

1.30

1.23

11.6

923

20

1592

40

36

318

287

<150

 

27

N42SH

13.2

12.6

1.32

1.26

11.8

939

20

1592

42

38

334

302

<150

 

28

N25UH

10.7

9.8

1.07

0.98

9.2

732

25

1990

27

23

215

183

<180

 

29

N28UH

11.3

10.5

1.13

1.05

9.8

780

25

1990

30

26

239

207

<180

 

30

N30UH

11.7

10.9

1.17

1.09

10.2

812

25

1990

32

28

255

223

<180

 

31

N33UH

12.2

11.4

1.22

1.14

10.7

851

25

1990

35

31

279

2247

<180

 

32

N35UH

12.5

11.8

1.25

1.18

11.0

875

25

1990

37

33

295

263

<180

 

33

N38UH

13.0

12.3

1.30

1.23

11.6

915

25

1990

40

36

318

287

<180

 

34

N25EH

10.7

9.8

1.07

0.98

9.20

732

30

2388

27

23

215

183

<200

 

35

N28EH

11.3

10.5

1.13

1.05

9.80

780

30

2388

30

26

239

207

<200

 

36

N30EH

11.7

10.9

1.17

1.09

10.2

812

30

2388

32

28

255

223

<200

 

37

N33EH

12.2

11.4

1.22

1.14

10.7

851

30

2388

35

31

279

247

<200

 

38

N35EN

12.5

11.8

1.25

1.18

11.0

875

30

2388

37

33

295

263

<200

 


* = The open flux irreversible loss of the testing sample at this temperature:
5%, when L/D is = 0.7  in cylinder shape. The dimension of the magnets will influence the working temperature partly, please contact us for further details.