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Ferrite permanent magnet multipole rings for dc motor

Permanent Ferrite Magnet sintered process, specification OD36.2*d18*h25 , mainly export to European , used in motor

  • Ferrite magnet
  • SPN
  • 8505119000
Quantity:

I. Polar Sintered Anisotropic Ferrite Multipole Rings


The Permanent ferrite magnet is made of SrO or BaO and Fe2O3 by ceramic processing technology.The texture is relatively hard, brittle material.According to the different orientation of the crystal , it can be divided into isotropic magnets and anisotropic magnets. Due to the ferrite has good temperature resistance with low cost, which has become one of the most used magnets.

 

The products of the company are with precision size, stable performance, excellent quality products; the diameter is in the range of 10mm-80mm, from 2 poles to 48 poles with variety of specifications, we can supply sine wave, trapezoidal wave, square wave and other magnetizing waveform.  High performance of the products and the surface magnetic flux density can reach from 1200 GS to 2100GS.

 

The products are widely used in Brushless DC motor, precision servo motor, permanent magnet motor, micro motor, instrumentation, magnetic drive, magnetic therapy devices,etc.

  

 II. Production process

 

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III:Manufacturing process and magnetizing

 

① With dry process can produce isotropic & anisotropic magnets, the tool can be changed and developed easily.

② With wet process only can produce anisotropic magnets,it is complicated to  change the tool and the tooling charge is high.

③ Isotropic ferrite magnets can be magnetized in any direction.

④ Anisotropic ferrite magnets are all oriented in the manufacturing direction, and can be magnetized in the direction of orientation.

 

IV: Partially sintered ferrite multipole magnetic ring specification and surface flux density list

 

 序号

No.

     规格

   Specification

  外径

Outside

Diameter

内径

  Inside

 Diameter

高度

   Height

极数

Polar

 表面磁通密度 Surface magnetic

 flux density  (GS)

1

OD 25* ID (6.5~7.0) * H25~40

25

6.5~7.0

25~40

2

1400-2100

2

OD 19* ID (6~7)*30

18

6~7

30

2

1400-2100

3

OD15* ID (5~6)*H (18~30)

15

5~6

18~30

2

1400-2100

4

OD38.4*ID16*H28

38.4

16

28

4

1400-2100

5

OD32*ID10.6*H18

32

10.6

18

4

1400-2100

6

OD30*ID10*H30

30

10

30

4

1400-2100

7

OD22*ID10*H30

22

10

30

4

1400-2100

8

OD16*ID5*H30

16

5

30

4

1400-2100

9

OD37.7*ID16*H15

37.7

16

15

6

1400-2100

10

OD35.4*ID15*H18

35.4

15

18

6

1400-2100

11

OD54*ID35*H31

54

35

31

6

1400-2100

12

OD53.7*ID34.7*H(25~40)

53.7

34.7

25~40

8

1400-2100

13

OD23.4*ID11*H9.5

23.4

11

9.5

8

1400-2100

14

OD50*ID30*H30

50

30

30

8

1400-2100

15

OD37*ID22*H20

37

22

20

10

1400-2100

16

OD16*ID9*H18

16

9

18

12

1400-2100

17

OD12.2*ID7*H13

12.2

7

13

12

1400-2100

18

OD32.9*ID24*H30

32.9

24

30

24

1400-2100

19

OD30*ID21*H25.5

30

21

25.5

24

1400-2100

20

OD36.2*ID18*25-4P

36.2

18

25

4

1400-2100

21

OD34.8*ID17*H26-8P

34.8

17

26

8

1400-2100

22

OD20.8*ID6*H30-4P

20.8

6

30

4

1400-2100

23

OD24.4*ID14.2*H15-4P

24.4

14.2

25

4

1400-2100

24

OD45.5*ID25.5*H25-8P

45.5

25.5

25

8

1400-2100

25

OD50*ID27*H21-8P

50

27

21

8

1400-2100

26

OD50.3*ID27*30-8P

50.3

27

30

8

1400-2100

27

OD54*ID35*H40-8P

54

35

40

8

1400-2100

28

OD54.5*ID33*H36-8P

54.5

33

36

8

1400-2100

29

OD53.8*ID35*H35-6P

53.8

35

35

6

1400-2100

30

OD59*ID39*H26-6P

59

39

26

6

1400-2100

 

 

V:  Main performance parameters of sintered ferrite magnets:


Grade

   Remanence (Br)

Coercive Force(HcB)

Intrinsic coercive

 force (HcJ)

 Energy product

     (BH)max

mT

KGauss

KA/m

KOe

KA/m

KOe

KJ/m3

MGOe

Y8T

200~235

2.0~2.35

125-160

1.57-2.01

210-280

2.64-3.51

6.5-9.5

0.8-1.2

Y22H

310~360

3.10~3.60

220-250

2.76-3.14

280-320

3.51-4.02

20.0-24.0

2.5-3.0

Y25

360~400

3.60~4.00

135-170

1.70-2.14

140-200

1.76-2.51

22.5-28.0

2.8-3.5

Y26H-1

360~390

3.60~3.90

200-250

2.51-3.14

225-255

2.83-3.20

23.0-28.0

2.9-3.5

Y26H-2

360~380

3.60~3.80

263-288

3.30-3.62

318-350

3.99-4.40

24.0-28.0

3.0-3.5

Y27H

350~380

3.50~3.80

225-240

2.83-3.01

235-260

2.95-3.27

25.0-29.0

3.1-3.6

Y28

370~400

3.80~4.00

175-210

2.20-3.64

180-220

2.26-2.76

26.0-30.0

3.3-3.8

Y28H-1

380~400

3.70~4.00

240-260

3.01-3.27

250-280

3.14-3.52

27.0-30.0

3.4-3.8

Y28H-2

360~380

3.60~3.80

271-295

3.40-3.70

382-405

4.8-5.08

26.0-30.0

3.3-3.8

Y30H-1

380~400

3.80~4.00

230-275

2.89-3.46

235-290

2.95-3.64

27.0-32.5

3.4-4.1

Y30H-2

395~415

3.95~4.15

275-300

3.45-3.77

310-335

3.89-4.20

27.0-32.0

3.4-4.0

Y32

400~420

4.00~4.20

160-190

2.01-2.39

165-195

2.07-2.45

30.0-33.5

3.8-4.2

Y32H-1

380~400

3.80~4.00

230-275

2.89-3.46

235-290

2.95-3.64

27.0-32.5

3.4-4.1

Y32H-2

395~415

3.95~4.15

275-300

3.45-3.77

310-335

3.89-4.20

27.0-32.0

3.4-4.0

Y33

410~430

4.10~4.30

220-250

2.76-3.14

225-255

2.83-3.20

31.5-35.0

3.9-4.4

Y33H

410~430

4.10~4.30

250-270

3.14-3.39

250-275

3.14-3.45

31.5-35.0

3.9-4.4

Y34

420~440

4.20~4.40

200-230

2.51-2.89

205-235

2.57-2.95

32.5-36.0

4.1-4.4

Y35

430~450

4.30~4.50

215-239

2.70-3.00

217-241

2.73-3.03

33.1-38.2

4.1-4.8

Y36

430~450

4.30~4.50

247-271

3.10-3.40

250-274

3.14-3.44

35.1-38.3

4.4-4.8

Y38

440~460

4.40~4.60

285-305

3.58-3.83

294-310

3.69-3.89

36.6-40.6

4.6-5.1

Y40

440~460

4.40~4.60

330-354

4.15-4.45

340-360

4.27-4.52

37.6-41.8

4.7-5.2






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