Ring Shape Ferrite Magnet
Dongyang Aviation Magnetic Ltd is one of the leading China ring shape ferrite magnet manufacturers and suppliers,Website:, welcome to wholesale or buy ferrite toroid, magnetic ring, disc magnets 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
Ferrite divided barium ferrite (BaO · 6Fe2O3) and strontium ferrite (SrO · 6Fe2O3). High resistivity, is a semiconductor type, so a small eddy current losses, the coercive force, not the merits of demagnetization can be effectively applied in the air gap in the magnetic circuit, particularly suitable for small generators and permanent magnet motors.The major products anisotropic ferrite permanent magnet series. They can be used to make the permanent ignition motors, permanent magnet motors, permanent magnet concentrator, magnetic lifting heads, magnetic thrust bearing, magnetic separator, speakers, microwave devices, magnetic sheet, and hearing aids.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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