Strong Permanent NdFeB Magnet Ring
1. Materials: Neodymium-Iron-Boron;
2. Technology: Utilizes new Sintered NdFeB magnet techniques and equipment such as strip casting, HDDR technology;
3. Magnetic properties: High coercive force, the max operation temp is up to 200 degree centigrade or 380 curie temperature;
4. Grades: N35-N52, 35M-48M, 35H-48H, 35SH-45SH, 30UH-40UH and 30EH-38EH;
5. Shapes: Ring
6. Size: According to customers' request;
7. Coatings: Ni, Zn, gold, copper, epoxy, chemical, parylene and so on;
8. Applications: Widely used in different applications, such as sensors, motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on
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Technical Data of Sintered NdFeB Magnet
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|
Grade
|
Br
|
Hcb
|
Hcj
|
(BH)max
|
(Tw)
|
|
mT
|
(kGs)
|
kA/m
|
(kOe)
|
kA/m
|
(kOe)
|
kJ/m3
|
(MGOe)
|
|
N35
|
1170-1220
|
(11.7-12.2)
|
≥868
|
( ≥10.9)
|
≥955
|
( ≥12)
|
263-287
|
(33-36)
|
80 ºC
|
|
N38
|
1220-1250
|
(12.2-12.5)
|
≥899
|
( ≥11.3)
|
≥955
|
( ≥12)
|
287-310
|
(36-39)
|
80 ºC
|
|
N40
|
1250-1280
|
(12.5-12.8)
|
≥907
|
( ≥11.4)
|
≥955
|
( ≥12)
|
302-326
|
(38-41)
|
80 ºC
|
|
N42
|
1280-1320
|
(12.8-13.2)
|
≥915
|
( ≥11.5)
|
≥955
|
( ≥12)
|
318-342
|
(40-43)
|
80 ºC
|
|
N45
|
1320-1380
|
(13.2-13.8)
|
≥923
|
( ≥11.6)
|
≥955
|
( ≥12)
|
342-366
|
(43-46)
|
80 ºC
|
|
N48
|
1380-1420
|
(13.8-14.2)
|
≥923
|
( ≥11.6)
|
≥876
|
( ≥12)
|
366-390
|
(46-49)
|
80 ºC
|
|
N50
|
1400-1450
|
(14.0-14.5)
|
≥796
|
( ≥10.0)
|
≥876
|
( ≥11)
|
382-406
|
(48-51)
|
60 ºC
|
|
N52
|
1430-1480
|
(14.3-14.8)
|
≥796
|
( ≥10.0)
|
≥876
|
( ≥11)
|
398-422
|
(50-53)
|
60 ºC
|
|
30M
|
1080-1130
|
(10.8-11.3)
|
≥796
|
( ≥10.0)
|
≥1114
|
( ≥14)
|
223-247
|
(28-31)
|
100 ºC
|
|
33M
|
1130-1170
|
(11.3-11.7)
|
≥836
|
( ≥10.5)
|
≥1114
|
( ≥14)
|
247-263
|
(31-33)
|
100 ºC
|
|
35M
|
1170-1220
|
(11.7-12.2)
|
≥868
|
( ≥10.9)
|
≥1114
|
( ≥14)
|
263-287
|
(33-36)
|
100 ºC
|
|
38M
|
1220-1250
|
(12.2-12.5)
|
≥899
|
( ≥11.3)
|
≥1114
|
( ≥14)
|
287-310
|
(36-39)
|
100 ºC
|
|
40M
|
1250-1280
|
(12.5-12.8)
|
≥923
|
( ≥11.6)
|
≥1114
|
( ≥14)
|
302-326
|
(38-41)
|
100 ºC
|
|
42M
|
1280-1320
|
(12.8-13.2)
|
≥955
|
( ≥12.0)
|
≥1114
|
( ≥14)
|
318-342
|
(40-43)
|
100 ºC
|
|
45M
|
1320-1380
|
(13.2-13.8)
|
≥995
|
( ≥12.5)
|
≥1114
|
( ≥14)
|
342-366
|
(43-46)
|
100 ºC
|
|
48M
|
1360-1430
|
(13.6-14.3)
|
≥1027
|
( ≥12.9)
|
≥1114
|
( ≥14)
|
366-390
|
(46-49)
|
100 ºC
|
|
50M
|
1400-1450
|
(14.0-14.5)
|
≥1033
|
( ≥13.0)
|
≥1114
|
( ≥14)
|
382-406
|
(48-51)
|
100 ºC
|
|
30H
|
1080-1130
|
(10.8-11.3)
|
≥796
|
( ≥10.0)
|
≥1353
|
( ≥17)
|
223-247
|
(28-31)
|
120 ºC
|
|
33H
|
1130-1170
|
(11.3-11.7)
|
≥836
|
( ≥10.5)
|
≥1353
|
( ≥17)
|
247-271
|
(31-34)
|
120 ºC
|
|
35H
|
1170-1220
|
(11.7-12.2)
|
≥868
|
( ≥10.9)
|
≥1353
|
( ≥17)
|
263-287
|
(33-36)
|
120 ºC
|
|
38H
|
1220-1250
|
(12.2-12.5)
|
≥899
|
( ≥11.3)
|
≥1353
|
( ≥17)
|
287-310
|
(36-39)
|
120 ºC
|
|
40H
|
1250-1280
|
(12.5-12.8)
|
≥923
|
( ≥11.6)
|
≥1353
|
( ≥17)
|
302-326
|
(38-41)
|
120 ºC
|
|
42H
|
1280-1320
|
(12.8-13.2)
|
≥955
|
( ≥12.0)
|
≥1353
|
( ≥17)
|
318-342
|
(40-43)
|
120 ºC
|
|
45H
|
1300-1360
|
(13-13.6)
|
≥963
|
( ≥12.1)
|
≥1353
|
( ≥17)
|
326-358
|
(43-46)
|
120 ºC
|
|
48H
|
1370-1430
|
(13.7-14.3)
|
≥995
|
( ≥12.5)
|
≥1353
|
( ≥17)
|
366-390
|
(46-49)
|
120 ºC
|
|
30SH
|
1080-1130
|
(10.8-11.3)
|
≥804
|
( ≥10.1)
|
≥1592
|
( ≥20)
|
223-247
|
(28-31)
|
150 ºC
|
|
33SH
|
1130-1170
|
(11.3-11.7)
|
≥844
|
( ≥10.6)
|
≥1592
|
( ≥20)
|
247-271
|
(31-34)
|
150 ºC
|
|
35SH
|
1170-1220
|
(11.7-12.2)
|
≥876
|
( ≥11.0)
|
≥1592
|
( ≥20)
|
263-287
|
(33-36)
|
150 ºC
|
|
38SH
|
1220-1250
|
(12.2-12.5)
|
≥907
|
( ≥11.4)
|
≥1592
|
( ≥20)
|
287-310
|
(36-39)
|
150 ºC
|
|
40SH
|
1240-1280
|
(12.5-12.8)
|
≥939
|
( ≥11.8)
|
≥1592
|
( ≥20)
|
302-326
|
(38-41)
|
150 ºC
|
|
42SH
|
1280-1320
|
(12.8-13.2)
|
≥987
|
( ≥12.4)
|
≥1592
|
( ≥20)
|
318-342
|
(40-43)
|
150 ºC
|
|
45SH
|
1320-1380
|
(13.2-13.8)
|
≥1003
|
( ≥12.6)
|
≥1592
|
( ≥20)
|
342-366
|
(43-46)
|
150 ºC
|
|
28UH
|
1020-1080
|
(10.2-10.8)
|
≥764
|
( ≥9.6)
|
≥1990
|
( ≥25)
|
207-231
|
(26-29)
|
180 ºC
|
|
30UH
|
1080-1130
|
(10.8-11.3)
|
≥812
|
( ≥10.2)
|
≥1990
|
( ≥25)
|
223-247
|
(28-31)
|
180 ºC
|
|
33UH
|
1130-1170
|
(11.3-11.7)
|
≥852
|
( ≥10.7)
|
≥1990
|
( ≥25)
|
247-271
|
(31-34)
|
180 ºC
|
|
35UH
|
1180-1220
|
(11.8-12.2)
|
≥860
|
( ≥10.8)
|
≥1990
|
( ≥25)
|
263-287
|
(33-36)
|
180 ºC
|
|
38UH
|
1220-1250
|
(12.2-12.5)
|
≥876
|
( ≥11.0)
|
≥1990
|
( ≥25)
|
287-310
|
(36-39)
|
180 ºC
|
|
40UH
|
1240-1280
|
(12.5-12.8)
|
≥899
|
( ≥11.3)
|
≥1990
|
( ≥25)
|
302-326
|
(38-41)
|
180 ºC
|
|
28EH
|
1040-1090
|
(10.4-10.9)
|
≥780
|
( ≥9.8)
|
≥2388
|
( ≥30)
|
207-231
|
(26-29)
|
200 ºC
|
|
30EH
|
1080-1130
|
(10.8-11.3)
|
≥812
|
( ≥10.2)
|
≥2388
|
( ≥30)
|
223-247
|
(28-31)
|
200 ºC
|
|
33EH
|
1130-1170
|
(11.3-11.7)
|
≥836
|
( ≥10.5)
|
≥2388
|
( ≥30)
|
247-271
|
(31-34)
|
200 ºC
|
|
35EH
|
1170-1220
|
(11.7-12.2)
|
≥876
|
( ≥11.0)
|
≥2388
|
( ≥30)
|
263-287
|
(33-36)
|
200 ºC
|
|
38EH
|
1220-1250
|
(12.2-12.5)
|
≥899
|
( ≥11.3)
|
≥2388
|
( ≥30)
|
287-310
|
(36-39)
|
200 ºC
|
|
28AH
|
1040-1090
|
(10.4-10.9)
|
≥787
|
( ≥9.9)
|
≥2624
|
( ≥33)
|
207-231
|
(26-29)
|
230 ºC
|
|
30AH
|
1080-1130
|
(10.8-11.3)
|
≥819
|
( ≥10.3)
|
≥2624
|
( ≥33)
|
223-247
|
(28-31)
|
230 ºC
|
|
33AH
|
1130-1170
|
(11.3-11.7)
|
≥843
|
( ≥10.6)
|
≥2624
|
( ≥33)
|
247-271
|
(31-34)
|
230 ºC
|