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| Products: Permanent
Magnets >> Sintered NdFeB Magnet
(Neodymium Iron Boron) |
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We are
professional NdFeB, NdFeB magnet, SmCo magnet, AlNiCo magnet, Hard
Ferrite magnet, rubber magnet, flexible magnet sheet, flexible
magnet for micro motor, fridge magnet, magnetic toys,
magnetic assemblies, bonded magnet manufacturer and factory in
China. We can produce NdFeB
magnet, sintered NdFeB
magnet according to your requirements. More types of
NdFeB magnets, sintered NdFeB magnet wanted,
please contact us right now!
General Introduction
Sintered NdFeB magnet
(NdFeB Magnets), the third
generation of rare-earth permanent magnet, is the most powerful and
advanced commercialized permanent magnet today. NdFeB has the high remanence, high coercive force,
high-energy product and high performance/cost ratio, It can
be formed into various sizes and widely used in many fields such as
aviation, electronics, instruments, meters, machine, medical
instrument and the like. It is especially suitable for the
development of high-performance, compact and light
products.
A variety
of coatings can be applied to the sintered NdFeB magnets' surface
to overcome the principle drawback of neodymium-based magnets,
their tendency to corrode easily.
Sintered
NdFeB Magnets production process >>
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What
shapes can it be
formed? |
NdFeB magnet, Sintered NdFeB
magnet
|
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| NdFeB magnets for motor, generator,driver in various
specification |
Tile-shaped and special-shaped ndfeb magnet |
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| NdFeB Blocks in various specification |
NdFeB products painted with epoxy resin |
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| NdFeB Circles in various specification |
NdFeb Cylinders in various specification |
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| Special Shape of NdFeB Magnet |
Rubber Coated NdFeB Magnet |
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Magnetic properties of Sintered
NdFeB magnet:
|
|
Grade
|
Remanence |
Coercive
Force |
Intrinsic
Coercive Force |
Max. energy
product |
Max.
Operating
Temperature |
|
Br
mT
(kGs)
|
Hcb
kA/m
(kOe)
|
Hcj
kA/m
(kOe)
|
（ BH ）max kJ/m3
(MGOe)
|
Tw
|
|
N35
|
1170-1220
(11.7-12.2)
|
≥ 868
( ≥ 10.9)
|
≥ 955
( ≥ 12)
|
263-287
(33-36)
|
80 ℃
|
|
N38
|
1220-1250
(12.2-12.5)
|
≥ 899
( ≥ 11.3)
|
≥ 955
( ≥ 12)
|
287-310
(36-39)
|
80 ℃
|
|
N40
|
1250-1280
(12.5-12.8)
|
≥ 907
( ≥ 11.4)
|
≥ 955
( ≥ 12)
|
302-326
(38-41)
|
80 ℃
|
|
N42
|
1280-1320
(12.8-13.2)
|
≥ 915
( ≥ 11.5)
|
≥ 955
( ≥ 12)
|
318-342
(40-43)
|
80 ℃
|
|
N45
|
1320-1380
(13.2-13.8)
|
≥ 923
( ≥ 11.6)
|
≥ 955
( ≥ 12)
|
342-366
(43-46)
|
80 ℃
|
|
N48
|
1380-1420
(13.8-14.2)
|
≥ 923
( ≥ 11.6)
|
≥ 876
( ≥ 12)
|
366-390
(46-49)
|
80 ℃
|
|
N50
|
1400-1450
(14.0-14.5)
|
≥ 796
( ≥ 10.0)
|
≥ 876
( ≥ 11)
|
382-406
(48-51)
|
60 ℃
|
|
N52
|
1430-1480
(14.3-14.8)
|
≥ 796
( ≥ 10.0)
|
≥ 876
( ≥ 11)
|
398-422
(50-53)
|
60 ℃
|
|
30M
|
1080-1130
(10.8-11.3)
|
≥ 796
( ≥ 10.0)
|
≥ 1114
( ≥ 14)
|
223-247
(28-31)
|
100 ℃
|
|
33M
|
1130-1170
(11.3-11.7)
|
≥ 836
( ≥ 10.5)
|
≥ 1114
( ≥ 14)
|
247-263
(31-33)
|
100 ℃
|
|
35M
|
1170-1220
(11.7-12.2)
|
≥ 868
( ≥ 10.9)
|
≥ 1114
( ≥ 14)
|
263-287
(33-36)
|
100 ℃
|
|
38M
|
1220-1250
(12.2-12.5)
|
≥ 899
( ≥ 11.3)
|
≥ 1114
( ≥ 14)
|
287-310
(36-39)
|
100 ℃
|
|
40M
|
1250-1280
(12.5-12.8)
|
≥ 923
( ≥ 11.6)
|
≥ 1114
( ≥ 14)
|
302-326
(38-41)
|
100 ℃
|
|
42M
|
1280-1320
(12.8-13.2)
|
≥ 955
( ≥ 12.0)
|
≥ 1114
( ≥ 14)
|
318-342
(40-43)
|
100 ℃
|
|
45M
|
1320-1380
(13.2-13.8)
|
≥ 995
( ≥ 12.5)
|
≥ 1114
( ≥ 14)
|
342-366
(43-46)
|
100 ℃
|
|
48M
|
1360-1430
(13.6-14.3)
|
≥ 1027
( ≥ 12.9)
|
≥ 1114
( ≥ 14)
|
366-390
(46-49)
|
100 ℃
|
|
50M
|
1400-1450
(14.0-14.5)
|
≥ 1033
( ≥ 13.0)
|
≥ 1114
( ≥ 14)
|
382-406
(48-51)
|
100 ℃
|
|
30H
|
1080-1130
(10.8-11.3)
|
≥ 796
( ≥ 10.0)
|
≥ 1353
( ≥ 17)
|
223-247
(28-31)
|
120 ℃
|
|
33H
|
1130-1170
(11.3-11.7)
|
≥ 836
( ≥ 10.5)
|
≥ 1353
( ≥ 17)
|
247-271
(31-34)
|
120 ℃
|
|
35H
|
1170-1220
(11.7-12.2)
|
≥ 868
( ≥ 10.9)
|
≥ 1353
( ≥ 17)
|
263-287
(33-36)
|
120 ℃
|
|
38H
|
1220-1250
(12.2-12.5)
|
≥ 899
( ≥ 11.3)
|
≥ 1353
( ≥ 17)
|
287-310
(36-39)
|
120 ℃
|
|
40H
|
1250-1280
(12.5-12.8)
|
≥ 923
( ≥ 11.6)
|
≥ 1353
( ≥ 17)
|
302-326
(38-41)
|
120 ℃
|
|
42H
|
1280-1320
(12.8-13.2)
|
≥ 955
( ≥ 12.0)
|
≥ 1353
( ≥ 17)
|
318-342
(40-43)
|
120 ℃
|
|
45H
|
1300-1360
(13-13.6)
|
≥ 963
( ≥ 12.1)
|
≥ 1353
( ≥ 17)
|
326-358
(43-46)
|
120 ℃
|
|
48H
|
1370-1430
(13.7-14.3)
|
≥ 995
( ≥ 12.5)
|
≥ 1353
( ≥ 17)
|
366-390
(46-49)
|
120 ℃
|
|
30SH
|
1080-1130
(10.8-11.3)
|
≥ 804
( ≥ 10.1)
|
≥ 1592
( ≥ 20)
|
223-247
(28-31)
|
150 ℃
|
|
33SH
|
1130-1170
(11.3-11.7)
|
≥ 844
( ≥ 10.6)
|
≥ 1592
( ≥ 20)
|
247-271
(31-34)
|
150 ℃
|
|
35SH
|
1170-1220
(11.7-12.2)
|
≥ 876
( ≥ 11.0)
|
≥ 1592
( ≥ 20)
|
263-287
(33-36)
|
150 ℃
|
|
38SH
|
1220-1250
(12.2-12.5)
|
≥ 907
( ≥ 11.4)
|
≥ 1592
( ≥ 20)
|
287-310
(36-39)
|
150 ℃
|
|
40SH
|
1240-1280
(12.5-12.8)
|
≥ 939
( ≥ 11.8)
|
≥ 1592
( ≥ 20)
|
302-326
(38-41)
|
150 ℃
|
|
42SH
|
1280-1320
(12.8-13.2)
|
≥ 987
( ≥ 12.4)
|
≥ 1592
( ≥ 20)
|
318-342
(40-43)
|
150 ℃
|
|
45SH
|
1320-1380
(13.2-13.8)
|
≥ 1003
( ≥ 12.6)
|
≥ 1592
( ≥ 20)
|
342-366
(43-46)
|
150 ℃
|
|
28UH
|
1020-1080
(10.2-10.8)
|
≥ 764
( ≥ 9.6)
|
≥ 1990
( ≥ 25)
|
207-231
(26-29)
|
180 ℃
|
|
30UH
|
1080-1130
(10.8-11.3)
|
≥ 812
( ≥ 10.2)
|
≥ 1990
( ≥ 25)
|
223-247
(28-31)
|
180 ℃
|
|
33UH
|
1130-1170
(11.3-11.7)
|
≥ 852
( ≥ 10.7)
|
≥ 1990
( ≥ 25)
|
247-271
(31-34)
|
180 ℃
|
|
35UH
|
1180-1220
(11.8-12.2)
|
≥ 860
( ≥ 10.8)
|
≥ 1990
( ≥ 25)
|
263-287
(33-36)
|
180 ℃
|
|
38UH
|
1220-1250
(12.2-12.5)
|
≥ 876
( ≥ 11.0)
|
≥ 1990
( ≥ 25)
|
287-310
(36-39)
|
180 ℃
|
|
40UH
|
1240-1280
(12.5-12.8)
|
≥ 899
( ≥ 11.3)
|
≥ 1990
( ≥ 25)
|
302-326
(38-41)
|
180 ℃
|
|
28EH
|
1040-1090
(10.4-10.9)
|
≥ 780
( ≥ 9.8)
|
≥ 2388
( ≥ 30)
|
207-231
(26-29)
|
200 ℃
|
|
30EH
|
1080-1130
(10.8-11.3)
|
≥ 812
( ≥ 10.2)
|
≥ 2388
( ≥ 30)
|
223-247
(28-31)
|
200 ℃
|
|
33EH
|
1130-1170
(11.3-11.7)
|
≥ 836
( ≥ 10.5)
|
≥ 2388
( ≥ 30)
|
247-271
(31-34)
|
200 ℃
|
|
35EH
|
1170-1220
(11.7-12.2)
|
≥ 876
( ≥ 11.0)
|
≥ 2388
( ≥ 30)
|
263-287
(33-36)
|
200 ℃
|
|
38EH
|
1220-1250
(12.2-12.5)
|
≥ 899
( ≥ 11.3)
|
≥ 2388
( ≥ 30)
|
287-310
(36-39)
|
200 ℃
|
|
30AH
|
1080-1120
(10.8-11.2)
|
≥ 812
( ≥ 10.2)
|
≥ 2785
( ≥ 35)
|
223-255
(28-32)
|
220 ℃
|
|
33AH
|
1120-1170
(11.2-11.7)
|
≥ 812
( ≥ 10.2)
|
≥ 2785
( ≥ 35)
|
247-271
(31-34)
|
220 ℃
|
|
|
Physical and Mechanical Properties of
ndfeb:
|
|
Thermal
Conductivity
|
7.7 kcal/m-h-°C
|
|
Young’s Modulus
|
1.7 x 104
kg/mm2
|
|
Bending
Strength
|
24
kg/mm2
|
|
Compressive
Strength
|
80
kg/mm2
|
|
Electrical
Resistivity
|
160
µ-ohm-cm/cm2
|
|
Density
|
7.4-7.55
g/cm3
|
|
Vickers
Hardness
|
500 - 600
|
|
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|
Available coatings for sintered ndfeb
magnet:
|
|
Available
Coatings:
|
|
Surface
|
Coating
|
Thickness
(Microns)
|
Color
|
Resistance
|
|
Passivation
|
|
1
|
Silver Grey
|
Temporary
Protection
|
|
Nickel
|
Ni+Ni
|
10-20
|
Bright Silver
|
Excellent against
Humidity
|
|
Ni+Cu+Ni
|
|
Zinc
|
Zn
|
8-20
|
Bright Blue
|
Good Against Salt
Spray
|
|
C-Zn
|
Shinny Color
|
Excellent Against Salt
Spray
|
|
Tin
|
Ni+Cu+Sn
|
15-20
|
Silver
|
Superior Against
Humidity
|
|
Gold
|
Ni+Cu+Au
|
10-20
|
Gold
|
Superior Against
Humidity
|
|
Copper
|
Ni+Cu
|
10-20
|
Gold
|
Temporary
Protection
|
|
Epoxy
|
Epoxy
|
15-25
|
Black, Red,
Grey
|
Excellent Against
Humidity
& Salt Spray
|
|
Ni+Cu+Epoxy
|
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Zn+Epoxy
|
|
Chemical
|
Ni
|
10-20
|
Silver Grey
|
Excellent Against
Humidity
|
|
Parylene
|
Parylene
|
5-20
|
Grey
|
Excellent Against
Humidity, Salt Spray. Superior Against Solvents, Gases, Fungi and
Bacteria.
FDA Approved.
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magnet,samarium cobalt,
ceramic magnet, hard ferrite magnet, ferrite magnet,alnico, cast alnico,
rubber magnet, flexible rubber magnet, magnetic toy, magnetic tool, magnetic assembly, magnet, permanent
magnets, Dailymag Magnetics |
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