Specification of Magnets >> Ferrite Magnet

Anisotropic Sr-Ferrite Magnet

Round Type
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Round Top Type
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Ring Type
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Large Ring Type
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Ring Type(Elevated Pierced)

Square Type
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Bar Type (Square Type)
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Pierced Square Type (Single Hole Type)

Pierced Square Type (Double Holes Type)
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Flat Round Type
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Segment C Type

Segment Type (Pierced)
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Segment Type (Large)

Anisotropic Sr-Ferrite Magnet Since its coercive force is strong, there is no demagnetization. Being a ceramic magnet, Ferrite magnet is highly anticorrosive and is suitable for a flat shape, but its weak point is that it tends to be easily broken. Ferrite magnet is used for traditional audio speakers and headphones, and since it becomes lighter and lighter (a half or one-third of previous ones) due to technical innovation, the demand for Ferrite magnet for automobile motors or generators is increasingly growing. As there is abundant ferric oxide, raw materials of Ferrite magnet, the magnet can be supplied at the lowest price among present magnets.

Round Type

OD × H

1.5 Φ × 3

2 Φ × 3

2) 2 Φ × 4

2.3 Φ × 2.8

2.3 Φ × 4.5

3 Φ × 3

3.2 Φ × 5

3.5 Φ × 3.5

4 Φ × 2

1)5 Φ × 2

5 Φ × 3

5 Φ × 8

6 Φ × 2

6 Φ × 5

6.35 Φ × 6.35

7 Φ × 2

7 Φ × 5

8 Φ × 2

OD × H

8 Φ × 3

8 Φ × 5

9 Φ × 3

10 Φ × 3

10 Φ × 5

10 Φ × 7

10 Φ × 10

11 Φ × 5

12 Φ × 4

12.5 Φ × 3.8

15 Φ × 4

15 Φ × 5.2

15 Φ × 8

15 Φ × 10

16 Φ × 12

17 Φ × 3

17 Φ × 4

18 Φ × 8

OD × H

20 Φ × 3

20 Φ × 4

20 Φ × 5

20 Φ × 7

20 Φ × 10

20 Φ × 15

22 Φ × 25.4

25 Φ × 4

25 Φ × 6

29.5 Φ × 11

30 Φ × 5

30 Φ × 8

30 Φ × 10

30 Φ × 13.5

38 Φ × 10

38 Φ × 13.5

50 Φ × 10

1) Ni plated is also available 2)Ni plated

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Round Top Type

OD × H

15 Φ × 6R

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Ring Type

OD × ID × H

6Φ × 2Φ × 2.5

8Φ × 3.5Φ × 4.5

10Φ × 3Φ × 2

12Φ × 5Φ × 4

12.5Φ × 5.3Φ × 6

13Φ × 6.1Φ × 10

13.5Φ × 5Φ × 2

14Φ × 8Φ × 3

15Φ × 6.1Φ × 10

17.5Φ × 7Φ × 3

17.5Φ × 10.8Φ × 5

19Φ × 6.5Φ × 10

20Φ × 8Φ × 4

20Φ × 8Φ × 8

20Φ × 10Φ × 3

20.5Φ × 7.5Φ × 3.6

21Φ × 12Φ × 4.5

23Φ × 6.5Φ × 3.7

23.5Φ × 15.6Φ × 4

25Φ × 8Φ × 6

28Φ × 10Φ × 3.5

OD × ID × H

29Φ × 10Φ × 3.5

29Φ × 10Φ × 5

29.6Φ × 18Φ × 2.7

30Φ × 9Φ × 6

30Φ × 12Φ × 5

32Φ × 8Φ × 5

35.6Φ × 14Φ × 6

36Φ × 18Φ × 8

37Φ × 14Φ × 6

39Φ × 22Φ × 7

41.8Φ × 23Φ × 6

45Φ × 22Φ × 6

45Φ × 22Φ × 8

45Φ × 22Φ × 10.5

45Φ × 22Φ × 11

45Φ × 24Φ × 8

48Φ × 17.7Φ × 6

50Φ × 9Φ × 20

50Φ × 16Φ × 10

52.5Φ × 20.3Φ × 5

55Φ × 24Φ × 12

OD × ID × H

55.5Φ × 40.5Φ × 2.5

56Φ × 45Φ × 19

60Φ × 32Φ × 7

60Φ × 32Φ × 8

60Φ × 32Φ × 10

70Φ × 32Φ × 8

70Φ × 32Φ × 10

70Φ × 32Φ × 15

70Φ × 53Φ × 8.4

75Φ × 32Φ × 10

80Φ × 40Φ × 8

80Φ × 40Φ × 10

80Φ × 40Φ × 12

85Φ × 33Φ × 22

90Φ × 50Φ × 16

100Φ × 60Φ × 15

110Φ × 50Φ × 15

134Φ × 75Φ × 20

156Φ × 80Φ × 20

200 Φ × 120Φ × 20

220 Φ × 110Φ × 20

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Large Ring Type

OD ×ID ×H

100 Φ × 32.5Φ × 27.4

100 Φ × 60 Φ × 15

110 Φ × 50 Φ × 15

115 Φ × 44.5Φ × 25.4

134 Φ × 75 Φ × 20

156 Φ × 80 Φ × 20

165 Φ × 86.3Φ × 38.1

169 Φ × 81.2Φ × 40

178 Φ × 88.9Φ × 25.4

190 Φ × 88.9Φ × 31.7

200 Φ × 86 Φ × 30

200 Φ ×120 Φ × 20

220 Φ ×110 Φ × 20

220 Φ ×110 Φ × 30

A thick large-sized ring type,which has been difficult to manufacture with Anisotropic Sr-Ferrite Magnets is now available with only by order-received production since it is large-sized.

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Ring Type (Elevated Pierced)

OD × MD × ID × h× H	Diameter
50Ø × 12Ø × 9.5Ø × 4.5 × 20	3.5Φ

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Square Type

L × W × H

4 × 3.2 × 0.65

4 × 4 × 2

7 × 7 × 4

12 × 8 × 2.5

12.5 × 5.3 × 6

12.5 × 8.5 × 4.7

13.5 × 5.5 × 2

15 × 10 × 4

15 × 15 × 5

18 × 11.5 × 5

18.5 × 6 × 3

20 × 10 × 4

20 × 10 × 5

20 × 12 × 5

20 × 15 × 7

20 × 20 × 10

23 × 22 × 8

23.5 × 15.6 × 4

24 × 10 × 4

25 × 6 × 4

25 × 8 × 5

25 × 15 × 7

25 × 19 × 4.5

25 × 19 × 5

25.5 × 25.5 × 3

26 × 26 × 3

27 × 8.5 × 4

27 × 14.5 × 7

L × W × H

30 × 6 × 4

30 × 9 × 6

30 × 10 × 5

30 × 10 × 10

30 × 20 × 5

30 × 30 × 10

34 × 8 × 5

34 × 34 × 10

35 × 15 × 4.5

40 × 12 × 6

40 × 12 × 8

40 × 25 × 5

40 × 25 × 10

40 × 40 × 10

40 × 40 × 12

40 × 40 × 15

40 × 40 × 20

41.5 × 4 × 3.3

47.5 × 47.5 × 20

48 × 15 × 5

48 × 22 × 10

50 × 20 × 5

50 × 50 × 12

50 × 50 × 18

55 × 4 × 4

55 × 30 × 18

58 × 14 × 16

58 × 14 × 19

L × W × H

58 × 14 × 25

60 × 30 × 5

60 × 30 × 10

63 × 14 × 10

63.5 × 19 × 5

65 × 15 × 25.4

68 × 18 × 12

75 × 30 × 25.4

80 × 80 × 20

90 × 34 × 20

96× 10 × 3

100 × 15 × 5

100 × 35 × 5

100 × 50 × 10

100 × 63.5 × 17

100 × 100 × 3

100 × 100 × 5

100 × 100 × 8

100 × 100 × 10

110 × 33.5 × 10

150 × 26 × 15

150 × 100 × 15

150 × 100 × 20

150 × 100 × 25.4

160 × 80 × 20

270 × 90 × 10

270 × 90 × 25.4

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Bar Type (Square Type)

W × H × L

3 × 3 × 7

4 × 10 × 20

6 × 6 × 18

6.3 × 6.8 × 27.5

7 × 7 × 12

9.75 × 9.75 × 25.4

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Pierced Square Type (Single Hole Type)

L × W × H × (ID)	Remarks
8 × 8 × 7 (2.5Φ)
12 × 9 × 5 (3Φ)
19 × 17.5 × 4.8 (3.5Φ)
20 × 12 × 4 (6Φ)
22 × 16 × 5 (5Φ)
24 × 13.5 × 4.5 (5Φ)
25 × 19 × 4.5 (5Φ)	Elevated pierced
30 × 18 × 6 (4.5Φ)
31 × 11.7 × 5.3 (3.2Φ)	Elevated pierced
40 × 25 × 5.2 (5Φ)	Elevated pierced
40 × 40 × 10 (12Φ)
85 × 65 × 18 (9Φ)

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Pierced Square Type (Double Holes Type)

L × W × H × (ID)	Remarks
48 × 22.5 × 10 (5Φ × 2)	Counter sunk
60 × 30 × 10 (7Φ × 2)

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Flat Round Type

OD × H

3.8Φ × 0.53

4Φ × 0.6

5Φ × 1

13Φ × 1.2

15Φ × 1.2

19Φ × 1.2

20Φ × 1.2

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Segment C Type

Code	R × r × W × H	Angle
SEG-1	43 × 37.6 × 30 × 35	40°
SEG-2	33 × 25.5 × 57 × 40	120°
SEG-3	23.1 × 18 × 39.2 × 21	120°
SEG-4	16 × 12 × 29 × 30	120°
SEG-5	23.9 × 18.3 × 41.5 × 49	130°
SEG-6	23.9 × 18.3 × 41.5 × 34.7	130°
SEG-7	23.2 × 18 × 42 × 32	130°
SEG-8	43 × 34.85 × 78.5 × 50	130°