Our strong Neodymium arc magnet(segment magnet) is suitable for advanced permanent magnets motor and pump.
We are providing the arc magnet with high energy material for motor application, like SH grade, L-SHT grade. These magnets can be assemblied together to a ring and sticked to iron housing. The meterial can work at high temperature and have low weight lost in high speed rotating. The material also have strong torque force.
Besides the basic grades, we also have T and L-T series grades which are derived from these basic grades. The T and L-T grades material are mainly for segment magntes which used in electric motor . The main properties of the derived grades such as Br, Hcj, Hcb and (BH)max are corresponding to those of the basic grades, while other properties are different. You can see, with highertemperature coefficient, this T and L-T material can work at higher temperature and has lower power decline.
The magnets can be coated with nickel, Zinc, epoxy, chrome, stannum or non- coated.
Magnetic Characteristics And Physical Properties of Sintered NdFeB magnet
Properties
Remanence
Coercive Force
Intrinsic Coercive Force
Max Energy Product
Max Working Temp
Br
Hcb
Hcj
(BH)max
Tw
Grade
mT(KGs)
KA/m (KGs)
KA/m (KOe)
KJ/m 3 ( MGOe )
℃
N-30
1080-1130
≥ 796
≥ 955
223-247
≤ 80
(10.8-11.3)
( ≥ 10)
( ≥ 12)
(28-31)
N-33
1130-1180
≥ 836
≥ 955
247-270
≤ 80
(11.3-11.8)
( ≥ 10.5)
( ≥ 12)
(31-34)
N-35
1170-1220
≥ 868
≥ 955
263-287
≤ 80
(11.7-12.2)
( ≥ 10.9)
( ≥ 12)
(33-36)
N-38
1220-1250
≥ 899
≥ 955
287-310
≤ 80
(12.2-12.5)
( ≥ 11.3)
( ≥ 12)
(36-39)
N-40
1250-1280
≥ 923
≥ 955
302-326
≤ 80
(12.5-12.8)
( ≥ 11.6)
( ≥ 12)
(38-41)
N-42
1280-1320
≥ 923
≥ 955
318-342
≤ 80
(12.8-13.2)
( ≥ 11.6)
( ≥ 12)
(40-43)
N-45
1320-1380
≥ 876
≥ 955
342-366
≤ 80
(13.2-13.8)
( ≥ 11.0)
( ≥ 12)
(43-46)
N-48
1380-1420
≥ 836
≥ 876
366-390
≤ 80
(13.8-14.2)
( ≥ 10.5)
( ≥ 11)
(46-49)
N-50
1400-1450
≥ 860
≥ 876
382-406
≤ 80
(14.0-14.5)
( ≥ 10.8)
( ≥ 11)
(48-51)
30M
1080-1130
≥ 796
≥ 1114
223-247
≤ 100
(10.8-11.3)
( ≥ 10)
( ≥ 14)
(28-31)
33M
1130-1180
≥ 836
≥ 1114
247-270
≤ 100
(11.3-11.8)
( ≥ 10.5)
( ≥ 14)
(31-34)
35M
1170-1220
≥ 868
≥ 1114
263-287
≤ 100
(11.7-12.2)
( ≥ 10.9)
( ≥ 14)
(33-36)
38M
1220-1250
≥ 899
≥ 1114
287-310
≤ 100
(12.2-12.5)
( ≥ 11.3)
( ≥ 14)
(36-39)
40M
1250-1280
≥ 923
≥ 1114
302-326
≤ 100
(12.5-12.8)
( ≥ 11.6)
( ≥ 14)
(38-41)
42M
1280-1320
≥ 955
≥ 1114
318-342
≤ 100
12.8-13.2
( ≥ 12.0)
( ≥ 14)
(40-43)
45M
1320-1380
≥ 995
≥ 1114
342-366
≤ 100
(13.2-13.8)
( ≥ 12.5)
( ≥ 14)
(43-46)
48M
1360-1430
≥ 1027
≥ 1114
366-390
≤ 100
(13.6-14.3)
( ≥ 12.9)
( ≥ 14)
(46-49)
50M
1400-1450
≥ 1033
≥ 1114
382-406
≤ 100
(14.0-14.5)
( ≥ 13.0)
( ≥ 14)
(48-51)
30H
1080-1130
≥ 796
≥ 1353
223-247
≤ 120
(10.8-11.3)
( ≥ 10)
( ≥ 17)
(28-31)
33H
1130-1180
≥ 836
≥ 1353
247-271
≤ 120
(11.3-11.8)
( ≥ 10.5)
( ≥ 17)
(31-34)
35H
1170-1220
≥ 868
≥ 1353
263-287
≤ 120
(11.7-12.2)
( ≥ 10.9)
( ≥ 17)
(33-36)
38H
1220-1250
≥ 899
≥ 1353
287-310
≤ 120
(12.2-12.5)
( ≥ 11.3)
( ≥ 17)
(36-39)
40H
1250-1280
≥ 923
≥ 1353
302-326
≤ 120
(12.5-12.8)
( ≥ 11.6)
( ≥ 17)
(38-41)
42H
1280-1320
≥ 955
≥ 1353
318-342
≤ 120
(12.8-13.2)
( ≥ 12.0)
( ≥ 17)
(40-43)
45H
1320-1380
≥ 963
≥ 1353
342-366
≤ 120
(13.2-13.8)
( ≥ 12.1)
( ≥ 17)
(43-46)
48H
1370-1430
≥ 995
≥ 1274
366-390
≤ 120
(13.7-14.3)
( ≥ 12.5)
( ≥ 16)
(46-49)
30SH
1080-1130
≥ 804
≥ 1592
223-247
≤ 150
(10.8-11.3)
( ≥ 10.1)
( ≥ 20)
(28-31)
33SH
1130-1170
≥ 844
≥ 1592
247-271
≤ 150
(11.3-11.7)
≥ 10.6
( ≥ 20)
(31-34)
35SH
1170-1220
≥ 876
≥ 1592
263-287
≤ 150
(11.7-12.2)
( ≥ 11.0)
( ≥ 20)
(33-36)
38SH
1220-1250
≥ 907
≥ 1592
287-310
≤ 150
(12.2-12.5)
( ≥ 11.4)
( ≥ 20)
(36-39)
40SH
1250-1280
≥ 939
≥ 1592
302-326
≤ 150
(12.5-12.8)
( ≥ 11.8)
( ≥ 20)
(38-41)
42SH
1280-1320
≥ 995
≥ 1592
318-342
≤ 150
(12.8-13.2)
( ≥ 12.5)
( ≥ 20)
(40-43)
45SH
1320-1380
≥ 1003
≥ 1592
342-366
≤ 150
(13.2-13.8)
( ≥ 12.6)
( ≥ 20)
(43-46)
28UH
1020-1080
≥ 764
≥ 1990
207-231
≤ 180
(10.2-10.8)
( ≥ 9.6)
( ≥ 25)
(26-29)
30UH
1080-1130
≥ 812
≥ 1990
223-247
≤ 180
(10.8-11.3)
( ≥ 10.2)
( ≥ 25)
(28-31)
33UH
1130-1170
≥ 852
≥ 1990
247-271
≤ 180
(11.3-11.7)
( ≥ 10.7)
( ≥ 25)
(31-34)
35UH
1180-1220
≥ 860
≥ 1990
263-287
≤ 180
(11.8-12.2)
( ≥ 10.8)
( ≥ 25)
(33-36)
38UH
1220-1250
≥ 907
≥ 1990
287-310
≤ 180
(12.2-12.5)
( ≥ 11.4)
( ≥ 25)
(36-39)
30EH
1080-1130
≥ 812
≥ 2388
223-247
≤ 200
(10.8-11.3)
( ≥ 10.2)
( ≥ 30)
(28-31)
33EH
1130-1170
≥ 812
≥ 2388
247-271
≤ 200
(11.3-11.7)
( ≥ 10.2)
( ≥ 30)
(31-34)
35EH
1170-1220
≥ 876
≥ 2388
263-287
≤ 200
(11.7-12.2)
( ≥ 11.0)
( ≥ 30)
(33-36)
30AH
1080-1130
≥ 812
≥ 2785
223-247
≤ 240
(10.8-11.3)
( ≥ 10.2)
( ≥ 35)
(28-31)
33AH
1130-1170
≥ 812
≥ 2785
247-271
≤ 240
(11.3-11.7)
( ≥ 10.2)
( ≥ 35)
31-34
NOTES:
The above-mentioned data of magnetic parameters and physical properties ars given at room temperature.
The maximum service temperature of magnet is changeable due to the ratio length and diameter and
Environmental factors.
Density: 7.4~7.6g/cm 3 ; α Br:-0.09~0.13%/ ℃, β Hcj: -0.50~0.80%/ ℃; Hv:600.