Contact Us
Xiamen Everbeen Magnet Electron Co., Ltd.
Add: Unit H, 4F Rihua Mansion, No. 8 Xinfeng 2nd road, Torch Hi-Tech Zone, Xiamen, China.
Tel: 0086-592-5781916
Fax: 0086-592-5123653
Home > Products > Neodymium Magnets

Neodymium Magnets

block neodymium magnets

Block neodymium magnet, rectangular magnet, bar magnet, rare earth magnet, NdFeB Magnet, Neodymium-Iron-Boron magnet, used for various motors, generators, holding magnet, cleaning machines,wind-turb...

more

Ring neodymium magnets

Rings neodymium magnets (Nd-Fe-B) are composed of neodymium, iron, boron and a few transition metals in rings sharps. These magnets are extremely strong for their small size, metallic in appearance...

more

Sphere neodymium magnets

These noedym magnets are coated Nickel or Chrome. We have various dimensions, such as Dia5mm, Dia8mm, Dia10mm, Dia12mm, Dia15mm, Dia19mm and Dia22mm. Other size will be customized according to clien...

more

Special Shaped NdFeB magnet

Special Shaped NdFeB magnet:  arc magnets, sector magnets oval magnets, wedge-shaped magnets, bullet-shaped magnets, cone-shaped magnet. tile magnet, Material:  Nd2Fe14B + other rare ea...

more

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.

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.℃)

 

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

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 %/℃ -0.10-0.07
 Curie Temperature 310-340
  Hardness Hv 80-120
 Resistivity Ω.cm 0.026
  Compressibility kgf/mm2 3.0
 Flexure Strength kg/mm 25
 Tensile Strength kg/mm2 4.2-5.8