Ring Shape Ferrite Magnet
Zhonghao Magnetic Materials Co.,Ltd is one of the leading China ring shape ferrite magnet manufacturers and suppliers welcome to wholesale ferrite toroid,Website:, magnetic ring, circular magnet, donut magnets, ceramic ring magnets, ferrite rings, ring shape ferrite magnet, shape ferrite magnet, ring magnet from our factory.
External D
Opposite sex product: D± 2% D ± 0.1mm
D±0.1mm
Homosexual products: D±1.5% and D ± 2%
Inside diameter d
Opposite sex product：d±2%
d±0.1mm
Homosexual products：d±1.5%and d±2%
ThicknessH
H±1.0mm
H±0.1mm
Sintered ferrite is a sintered magnetic material. The main components are SrO or BaO and Fe2O3, according to the different processing technology, can be divided into isotropic and anisotropic. Isotropic magnets have a lower performance, but it can be magnetized by each side of the magnet; the anisotropic magnets have higher performance, but they can only be obtained by pre designed magnet dimensions.
Our main magnet for loudspeaker, microwave oven, three-dimensional motor, instrument and equipment, mechanical equipment, art and toys etc..
Sintered Ferrite Magnet Performance and Grade
Grade
(Br)
(HcB)
(HcJ)
(BH)max
mT
KGauss
KA/m
KOe
KA/m
KOe
KJ/m3
MGOe
Y10T
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
3.70~4.00
175-210
2.20-3.64
180-220
2.26-2.76
26.0-30.0
3.3-3.8
Y28H-1
380~400
3.80~4.00
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
4.80-5.08
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
400~420
4.00~4.20
190-230
2.39-2.89
230-250
2.89-3.14
31.5-35.0
3.9-4.4
Y32H-2
400~440
4.00~4.40
224-240
2.81-3.01
230-250
2.89-3.14
31.0-34.0
3.9-4.3
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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