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Address:No. 249 West Xianmu Road, Huzhen Town, Jinyun County, Lishui, Zhejiang China
Zip Code:321404
TEL: +86-578-3272111
FAX:+86-578-3263799
E-mail: sales@cnlishuai.com

Complaints:Loonge Zhang
E-mail:loonge@cnlishuai.com

Neodymium magnet



Neodymium magnet

 

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Features & Spec.
 
Application
 
Attention
 
Package
 
Name:Neodymium magnet
Serial:Neodymium magnet Nd-Fe-B
Features:Neodymium magnet Nd-Fe-B
Detail:

Neodymium magnet (Nd-Fe-B) is one of the highest property and strongest permanent magnet by now, are made through powder metallurgy manufacturing techniques. They are mainly composed of neodymium(32%), iron(64%), boron(1%), and a few quantity rare earth material, such as Dy, Tb, Co, Nb, Ga, Al, Cu,etc. Neodymium magnet is regarded as "Magnet King" due to its recorded high remanence, coercive force and maximum energy product. With Neodymium magnet rapid development, many high-tech products were developed. Especially its application in motors makes products miniaturization and micromation. At the same time, because of its high remanence,coercive force and maximum energy product, this type magnet is widely used in servo motor, flat brushless motor, step motor, IT products, Nuclear Magnetic Resonance, speaker and other products. Neodymium magnet is easily rust and oxidated, so their surface must be plated Zn, Ni, Silver, Gold or made phosphor and epoxy treatment.
Our company has advanced scientific research and production equipments, strictly following ISO9001 Quality Management System to manufacture. We continuously strengthen inner management. From melting, milling, sinter and then process, all the working procedure are very perfect. The manufacturing technique are excellent. We can supply various dimension neodymium magnets with high property and enduring high temperature. The mainly higher product Grade is N45, N48, N50, N52, 48M, 50M, 44H, 46H, 48H, 42SH, 44SH, 38UH, 40UH, 33EH, 35EH.

Main Application Fields of NdFeB Magnet
Sonic Equipment:  Earphone ,Microphone,Loudspeaker.
Apparatus:     Electricity Meter,Velometer,Flow-meter,Tachometer.
Medical Device:  Magnetic Resonance Image Device,Water Magnetizer,Magnetic Therary Device.
Miceo motor and special motor:   Voice Coil Motor(VCM),step Motor,Texture Motor,Geared down Moror,Disk Motor,Servo Motor,and Permanent-Dynamic System.
Industry installation:  Magnetic Clamp, Magnetic Crane/Magnetic Lift, Magnetize Filter, CD-ROM, petrol dewaxing Equipment, Magnetic Coupler,Magntic Switch, Generator, Magnetic Separator.

Surface treatment: Nickel plating, Zinc plating, Tin plating, Spray Coating Epoxy Resin

Magnetic Characteristic of Sintered NdFeB Magnets
Grades
Br
Hcb
iHc
(BH)max
TW
mt(KG)
Koe(KA/m)
Koe(KA/m)
KJ/m3 (MGOe)
N35
1170-1210(11.7-12.1)
≥10.8(860)
≥12(955)
263-287(33-36)
80
N38
1210-1250(12.1-12.5)
≥10.8(860)
≥12(955)
287-310(36-39)
80
N40
1250-1280(12.5-12.8)
≥11.6(923)
≥12(955)
302-326(38-41)
80
N42
1280-1320(12.8-13.2)
≥11.6(923)
≥12(955)
318-342(40-43)
80
N45
1320-1380(13.2-13.8)
≥11.0(876)
≥12(955)
342-366(43-46)
80
N48
1380-1420(13.8-14.2)
≥10.5(835)
≥12(955)
366-390(46-49)
80
N50
1380-1450(13.8-14.5)
≥10.5(835)
≥12(955)
474-406(47-51)
80
33M
1130-1170(11.3-11.7)
≥10.3(820)
≥14(1114)
247-263(31-33)
100
35M
1170-1210(11.7-12.1)
≥10.8(860)
≥14(1114)
263-287(33-36)
100
38M
1210-1250(12.1-12.5)
≥11.0(876)
≥14(1114)
287-310(36-39)
100
40M
1250-1280(12.5-12.8)
≥11.4(907)
≥14(1114)
302-326(38-41)
100
42M
1280-1320(12.8-13.2)
≥11.6(923)
≥14(1114)
318-342(40-43)
100
45M
1320-1380(13.2-13.8)
≥11.8(939)
≥14(1114)
342-366(43-46)
100
48M
1360-1400(13.6-14.0)
≥11.8(939)
≥14(1114)
366-390(46-49)
100
30H
1080-1130(10.8-11.3)
≥10.2(812)
≥17(1353)
223-247(28-31)
120
33H
1130-1170(11.3-11.7)
≥10.6(844)
≥17(1353)
247-263(31-33)
120
35H
1170-1210(11.7-12.1)
≥11.0(876)
≥17(1353)
263-287(33-36)
120
38H
1210-1250(12.1-12.5)
≥11.2(890)
≥17(1353)
287-310(36-39)
120
40H
1250-1280(12.5-12.8)
≥11.5(915)
≥17(1353)
302-326(38-41)
120
42H
1280-1320(12.8-13.2)
≥12.0(955)
≥17(1353)
318-342(40-43)
120
45H
1320-1380(13.2-13.8)
≥12.0(955)
≥17(1353)
335-366(42-46)
120
30SH
1080-1130(10.8-11.3)
≥10.0(796)
≥21(1672)
223-247(28-31)
150
33SH
1130-1170(11.3-11.7)
≥10.6(844)
≥21(1672)
247-263(31-33)
150
35SH
1170-1210(11.7-12.1)
≥11.0(876)
≥21(1672)
263-287(33-36)
150
38SH
1210-1250(12.1-12.5)
≥11.4(907)
≥21(1672)
287-310(36-39)
150
40SH
1250-1280(12.5-12.8)
≥11.8(939)
≥21(1672)
302-326(38-41)
150
42SH
1280-1320(12.8-13.2)
≥11.8(939)
≥21(1672)
320-343(40-43)
150
30UH
1080-1130(10.8-11.3)
≥10.2(812)
≥25(1990)
223-247(28-31)
180
33UH
1130-1170(11.3-11.7)
≥10.7(852)
≥25(1990)
247-263(31-33)
180
35UH
1170-1210(11.7-12.1)
≥10.7(852)
≥25(1990)
263-287(33-36)
180
28EH
1040-1080(10.4-10.8)
≥9.5(756)
≥30(2388)
207-231(26-29)
200
30EH
1080-1130(10.8-11.3)
≥9.5(756)
≥30(2388)
223-247(28-31)
200
33EH
1130-1170(11.3-11.7)
≥10.2(812)
≥30(2388)
247-263(31-33)
200
35EH
1170-1210(11.7-12.1)
≥10.2(812)
≥30(2388)
263-287(33-36)
200

Physical Property of NdFeB Magnets
Item         
Property
Density
7.4g/cm3
Reversible Temp Coeff
-0.11%℃
Curie Temperature
310-340℃
Hardness
600Hv
Resistivity
144μΩ.cn
Compressibility
9.8×10-12m2/N
Flexure Strength
25kg/mm
Tensile Strength
8.0kg/mm2
Specific heat
0.12kCak/(kg.℃)

Magnetic Characteristic of bonded NdFeB Magnet
 
Remanence  Br
Coercive force
bHc
Intrinsic coercive force
iHc
Maximum energy product 
(BH)max  
Max Operating Temp
KGs
MT
Koe
KA/m
Koe
KA/m
MGOe
KJ/m3
NJN-6
4.20-5.60
420-560
3.4-4.3
272-344
9.0-13.0
720-1040
5.0-6.0
40-48
120
NJN-8
5.6-6.2
560-620
4.0-4.9
320-392
8.0-10.0
640-800
6.0-8.0
48-64
120
NJN-10
6.0-7.2
600-720
4.7-5.5
370-440
13.5-17.0
1080-1360
8.0-10.0
64-80
125
NJN-12
7.0-7.6
700-760
5.3-5.9
424-472
8.0-10.8
640-864
10.0-12.0
80-96
120

Property of  bonded NdFeB Magnets
ITEM
Property
Density
g/m³
5.8-6.2
Reversible Temp Coeff
%/℃
-0.17
Curie Temperature
310-340
Hardness
Hv
80-120
Resistivity
Ω.cm
0.026
Compressibility
kgf/mm2
3
Flexure Strength
kg/mm
25
Tensile Strength
kg/mm2
4.2-5.8

 


No. 249 West Xianmu Road, Huzhen Town, Jinyun County, Lishui, Zhejiang China (Mainland)
Tel:+86-578-3272111,Fax:+86-578-3263799
E-mail:sales@cnlishuai.com

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