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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
Magnet: is one of the
high performance rare earth permanent magnets, which use
neodymium (Nd), iron (Fe), and boron (B) as their main
ingredients and is susceptible to demagnetization when exposed to
elevated temperatures. There are many grades which can withstand
high temperatures, but several factors will dictate the performance
of the Neodymium magnet. There are Sintered NdFeB, Sintered AlNiCo,
Sintered SmCo and Sintered Ferrite.
NdFeB magnets, have the characteristics of
:
-
Super strong Br Resident
induction.Excellent demagnetization resistance
capability.
Good Price relative to its high magnetic
properties.
Coating is needed for NdFeB
-
Surface Treatment Method: Type Information
Metallic Zinc, Nickel, Nickel+Nickel, Copper+Nickel,
Nickel+Copper+Nickel,
Gold, Organic Epoxy, Nickel+Epoxy coating
Temporary Surface: Passivation
Dimension Available
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 Rings 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
|
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Ni+Cu+Epoxy
|
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Zn+Epoxy
|
|
Chemical
|
Ni
|
10-20
|
Silver Grey
|
Excellent Against
Humidity
|
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Parylene
|
Parylene
|
5-20
|
Grey
|
Excellent Against
Humidity, Salt Spray. Superior Against Solvents, Gases, Fungi and
Bacteria.
FDA Approved.
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