NdFeB magnets -The Strongest Permanent Magnets Today
NdFeB(Neodymium-Iron-Boron) magnet is used most popular by people in industry and our daily life, because it has superior magnetic properties than other kind of magnets.Place of Origin | Guangdong, China(Mainland) |
Magnet Type | Sintered NeFeB / rare earth / Permanent |
Composite | Neodymium-Iron-Boron |
Grade | N35-N54( M, H, SH, UH, EH, AH series ) |
Working Temperature | The Max. temp. is up to 80 / 100 /120 /150 / 230 celsius under different grade. |
Tolerance | +/-0.03 to +/-0.15 |
Shape of Magnet | Disc, Cylinder, Block, Ring, Sphere(ball), Arc Segment(Tile) and more custom shapes |
Size | various sizes custom-make welcome |
Coating | Ni, Zn, NiCuNi, gold, silver, copper, epoxy, etc. |
Magnetization Direction | Axially Magnetized, Radially Magnetized(Diametrically), Multi-poles Magnetized or other customized |
Quality System/Certificate | IATF 16949:2016; ISO9001:2000,QS-9000 SGS,RoHS,REACH |
Application | Industrial Magnet, Toy Magnet, Health Magnet and more |
Packaging | Antimagnetic Packaging / Neutral Packing / Custom-make welcome |
Shipping Method | by see, by air or by int'l express |
Lead Time | 10~25days |
· Automotive Starters | · Microphone Assemblies |
· Computer Rigid Disc Drives | · Particle Accelerators |
· DC Motors | · Printers |
· Headphone | · Relays |
· Halbach Arrays | · Servo Motors |
· Linear Actuators | · Stepper Motors |
· Linear Motors | · Switches |
· Loud Speakers | · Undulators |
· Magnetic Bearings | · Vacuum Deposition |
· Magnetic Couplings | · Voice Coil Motors (VCM) |
· Magnetic Separators | · Wind Turbines |
Series | Grade | Remanence | Coercive Force | Intrinsic Coercive force | Max. Energy Product | Max. Working Temp. | |||||
Br | Hcb | Hci | (BH) max | L/D=0.7 | |||||||
T | kGs | KA/m | KOe | KA/m | KOe | KJ/m3 | MGOe | ºC | °F | ||
N | N35 | 1.17-1.24 | 11.7-12.4 | ≥860 | ≥10.8 | ≥955 | ≥12 | 263-295 | 33-37 | 80 | 176 |
N38 | 1.22-1.30 | 12.2-13.0 | ≥860 | ≥10.8 | ≥955 | ≥12 | 287-318 | 36-40 | 80 | 176 | |
N40 | 1.26-1.32 | 12.6-13.2 | ≥860 | ≥10.8 | ≥955 | ≥12 | 302-334 | 38-42 | 80 | 176 | |
N42 | 1.29-1.35 | 12.9-13.5 | ≥860 | ≥10.8 | ≥955 | ≥12 | 318-350 | 40-44 | 80 | 176 | |
N45 | 1.32-1.38 | 13.2-13.8 | ≥860 | ≥10.8 | ≥955 | ≥12 | 334-366 | 42-46 | 80 | 176 | |
N48 | 1.37-1.43 | 13.7-14.3 | ≥836 | ≥10.5 | ≥876 | ≥11 | 358-390 | 45-49 | 80 | 176 | |
N50 | 1.40-1.45 | 14.0-14.5 | ≥836 | ≥10.5 | ≥876 | ≥11 | 374-406 | 47-51 | 80 | 176 | |
N52 | 1.42-1.48 | 14.2-14.8 | ≥836 | ≥10.5 | ≥876 | ≥11 | 390-422 | 49-53 | 80 | 176 | |
N54 | 1.45-1.51 | 14.5-15.1 | ≥836 | ≥10.5 | ≥876 | ≥11 | 398-438 | 50-55 | 80 | 176 | |
M | N35M | 1.17-1.24 | 11.7-12.4 | ≥860 | ≥10.8 | ≥1114 | ≥14 | 263-295 | 33-37 | 100 | 212 |
N38M | 1.22-1.30 | 12.2-13.0 | ≥915 | ≥11.5 | ≥1114 | ≥14 | 287-318 | 36-40 | 100 | 212 | |
N40M | 1.26-1.32 | 12.6-13.2 | ≥939 | ≥11.8 | ≥1114 | ≥14 | 302-334 | 38-42 | 100 | 212 | |
N42M | 1.29-1.35 | 12.9-13.5 | ≥955 | ≥12.0 | ≥1114 | ≥14 | 318-350 | 40-44 | 100 | 212 | |
N45M | 1.32-1.38 | 13.2-13.8 | ≥987 | ≥12.4 | ≥1114 | ≥14 | 334-366 | 42-46 | 100 | 212 | |
N48M | 1.37-1.43 | 13.7-14.3 | ≥1019 | ≥12.8 | ≥1114 | ≥14 | 358-390 | 45-49 | 100 | 212 | |
N50M | 1.40-1.45 | 14.0-14.5 | ≥1043 | ≥13.1 | ≥1114 | ≥14 | 374-406 | 47-51 | 100 | 212 | |
N52M | 1.42-1.48 | 14.2-14.8 | ≥1059 | ≥13.3 | ≥1114 | ≥14 | 390-422 | 49-53 | 100 | 212 | |
H | N35H | 1.17-1.24 | 11.7-12.4 | ≥876 | ≥11 | ≥1350 | ≥17 | 263-295 | 33-37 | 120 | 248 |
N38H | 1.22-1.30 | 12.2-13.0 | ≥915 | ≥11.5 | ≥1350 | ≥17 | 287-318 | 36-40 | 120 | 248 | |
N40H | 1.26-1.32 | 12.6-13.2 | ≥939 | ≥11.8 | ≥1350 | ≥17 | 302-334 | 38-42 | 120 | 248 | |
N42H | 1.29-1.35 | 12.9-13.5 | ≥963 | ≥12.1 | ≥1350 | ≥17 | 318-350 | 40-44 | 120 | 248 | |
N45H | 1.31-1.37 | 13.1-13.7 | ≥979 | ≥12.3 | ≥1350 | ≥17 | 335-366 | 42-46 | 120 | 248 | |
N48H | 1.37-1.43 | 13.7-14.3 | ≥1011 | ≥12.7 | ≥1274 | ≥16 | 358-390 | 45-49 | 120 | 248 | |
N50H | 1.40-1.45 | 14.0-14.5 | ≥1027 | ≥12.9 | ≥1274 | ≥16 | 374-406 | 47-51 | 120 | 248 | |
SH | N33SH | 1.14-1.21 | 11.4-12.1 | ≥852 | ≥10.7 | ≥1592 | ≥20 | 247-279 | 31-35 | 150 | 302 |
N35SH | 1.17-1.24 | 11.7-12.4 | ≥876 | ≥11 | ≥1592 | ≥20 | 263-295 | 33-37 | 150 | 302 | |
N38SH | 1.22-1.29 | 12.2-12.9 | ≥915 | ≥11.5 | ≥1592 | ≥20 | 287-318 | 36-40 | 150 | 302 | |
N40SH | 1.26-1.32 | 12.6-13.2 | ≥939 | ≥11.8 | ≥1592 | ≥20 | 302-334 | 38-42 | 150 | 302 | |
N42SH | 1.29-1.35 | 12.9-13.5 | ≥963 | ≥12.1 | ≥1592 | ≥20 | 318-350 | 40-44 | 150 | 302 | |
N45SH | 1.32-1.38 | 13.2-13.8 | ≥994 | ≥12.5 | ≥1592 | ≥20 | 335-366 | 42-46 | 150 | 302 | |
UH | N30UH | 1.08-1.16 | 10.8-11.6 | ≥812 | ≥10.2 | ≥1990 | ≥25 | 223-255 | 28-32 | 180 | 356 |
N33UH | 1.14-1.21 | 11.4-12.1 | ≥852 | ≥10.7 | ≥1990 | ≥25 | 247-279 | 31-35 | 180 | 356 | |
N35UH | 1.17-1.24 | 11.7-12.4 | ≥876 | ≥11 | ≥1990 | ≥25 | 263-295 | 33-37 | 180 | 356 | |
N38UH | 1.22-1.29 | 12.2-12.9 | ≥915 | ≥11.5 | ≥1990 | ≥25 | 287-318 | 36-40 | 180 | 356 | |
N40UH | 1.26-1.32 | 12.6-13.2 | ≥939 | ≥11.8 | ≥1990 | ≥25 | 302-334 | 38-42 | 180 | 356 | |
N42UH | 1.29-1.35 | 12.9-13.5 | ≥963 | ≥12.1 | ≥1990 | ≥25 | 318-350 | 40-44 | 180 | 356 | |
EH | N30EH | 1.08-1.15 | 10.8-11.5 | ≥812 | ≥10.2 | ≥2388 | ≥30 | 223-255 | 28-32 | 200 | 392 |
N33EH | 1.14-1.21 | 11.4-12.1 | ≥851 | ≥10.7 | ≥2388 | ≥30 | 247-279 | 31-35 | 200 | 392 | |
N35EH | 1.17-1.24 | 11.7-12.4 | ≥876 | ≥11 | ≥2388 | ≥30 | 263-295 | 33-37 | 200 | 392 | |
N38EH | 1.22-1.29 | 12.2-12.9 | ≥915 | ≥11.5 | ≥2388 | ≥30 | 287-318 | 36-40 | 200 | 292 | |
AH | N28AH | 1.04-1.12 | 10.4-11.2 | ≥772 | ≥9.70 | ≥2786 | ≥35 | 207-239 | 26-30 | 230 | 446 |
N30AH | 1.08-1.15 | 10.8-11.5 | ≥812 | ≥10.2 | ≥2786 | ≥35 | 223-255 | 28-32 | 230 | 446 | |
N33AH | 1.14-1.21 | 11.4-12.1 | ≥852 | ≥10.7 | ≥2786 | ≥35 | 247-279 | 31-35 | 230 | 446 |
Grade | Br | Hcb | Hcj | (BH)max | Material | Application | |
Isotropic | JPM-1A | 200~235mT | 135~160kA/m | 210~250kA/m | 7.1~9.0kJ/m2 | BaO.6Fe2O3 | Micro-motor Toy Stationary Holder |
2000~2350Gs | 1697~2011 Oe | 2640~3143 Oe | 0.9~1.1 MGOe | SrO.6Fe2O3 | |||
Dry-Aniso. | JPM-2A | 340~360mT | 215~240kA/m | 235~270kA/m | 21~24kJ/m3 | SrO.6Fe2O3 | |
3400~3600Gs | 2703~3017 Oe | 2954~3394 Oe | 2.6~3.0MGOe | ||||
JPM-2C | 350~380mT | 228~252kA/m | 235~265kA/m | 24~28kJ/m3 | SrO.6Fe2O3 | Micro-motor Household Appliance OA Facilities Electric Tool | |
3500~3800Gs | 2866~3168 Oe | 2954~3331 Oe | 3.0~3.5MGOe | ||||
JPM-2D | 365~395mT | 230~260kA/m | 235~275kA/m | 26~30kJ/m3 | SrO.6Fe2O3 | ||
3650~3950Gs | 2891~3268 Oe | 2954~3457 Oe | 3.3~3.8MGOe | ||||
Wet-Aniso. | JPM-3 | 330~360mT | 230~260kA/m | 235~270kA/m | 21~25kJ/m3 | SrO.6Fe2O3 | |
3300~3600Gs | 2891~3268 Oe | 2954~3394 Oe | 2.6~3.1MGOe | ||||
JPM-4A | 375~400mT | 250~274kA/m | 260~285kA/m | 27~31kJ/m3 | SrO.6Fe2O3 | ||
3750~4000Gs | 3143~3444 Oe | 3268~3582 Oe | 3.4~3.9MGOe | ||||
JPM-4B | 385~405mT | 220~250kA/m | 230~260kA/m | 29~31.8KJ/ m3 | SrO.6Fe2O3 | ||
3850~4050Gs | 2765~3143 Oe | 2891~3268 Oe | 3.6~4.0MGOe | ||||
JPM-5A | 360~380mT | 260~285kA/m | 310~335kA/m | 25~29kJ/m3 | SrO.6Fe2O3 | ||
3600~3800Gs | 3268~3582 Oe | 3897~4211 Oe | 3.1~3.6MGOe | ||||
JPM-5B | 330~360mT | 260~285kA/m | 330~360kA/m | 24~27kJ/m3 | SrO.6Fe2O3 | ||
3300~3600Gs | 3268~3582 Oe | 4148~4525 Oe | 3.0~3.4MGOe | ||||
Wet-Aniso. | JPM-5X | 400~420mT | 240~270kA/m | 250~275kA/m | 30~34kJ/m2 | SrO.6Fe2O3 | Starter Automotive Motor OA Facilities Household Appliance |
4000~4200Gs | 3017~3394 Oe | 3142~3457 Oe | 3.8~4.3 MGOe | ||||
JPM-5XH | 395~415mT | 265~285kA/m | 270~290kA/m | 31~34kJ/m3 | SrO.6Fe2O3 | ||
3950~4150Gs | 3331~3582 Oe | 3394~3645 Oe | 3.9~4.3MGOe | ||||
JPM-5N | 420~440mT | 215~240kA/m | 218~245kA/m | 33~37kJ/m3 | SrO.6Fe2O3 | ||
4200~4400Gs | 2703~3017 Oe | 2740~3080 Oe | 4.1~4.6MGOe | ||||
JPM-5H | 380~400mT | 275~300kA/m | 300~330kA/m | 27~32kJ/m3 | SrO.6Fe2O3 | ||
3800~4000Gs | 3457~3771 Oe | 3771~4148 Oe | 3.4~4.0MGOe | ||||
JPM-5E | 350~375mT | 265~295kA/m | 355~380kA/m | 24~27kJ/m3 | SrO.6Fe2O3 | ||
3500~3750Gs | 3331~3708 Oe | 4462~4777 Oe | 3.0~3.4MGOe | ||||
JPM-6E | 370~390mT | 278.6~302.4kA/m | 382~405.8kA/m | 25.9~29.1kJ/m3 | SrO.6Fe2O3 | ||
3700~3900Gs | 3502~3801 Oe | 4802~5101 Oe | 3.3~3.7MGOe | ||||
JPM-6B | 410~430mT | 291.1~314.9kA/m | 306.1~329.9kA/m | 31.8~35kJ/m3 | SrO.6Fe2O3 | ||
4100~4300Gs | 3659~3958 Oe | 3848~4147 Oe | 4.0~4.4MGOe | ||||
JPM-6H | 390~410mT | 290.5~314.3kA/m | 346.2~370kA/m | 28.7~31.9kJ/m3 | SrO.6Fe2O3 | ||
3900~4100Gs | 3652~3951 Oe | 4352~4651 Oe | 3.6~4.0MGOe | ||||
JPM-6N | 430~450mT | 246.7~270.5kA/m | 250.7~274.5kA/m | 35.1~38.3kJ/m3 | SrO.6Fe2O3 | ||
4300~4500Gs | 3101~3400 Oe | 3151~3450 Oe | 4.4~4.8MGOe |
Curie Temperature | Specific Heat | Electrical Resistance | Sintered Density | Temperature Coefficient | Deflective Strength | Linear Expansion Coefficient | ||
Unit | ºC | cal/g.ºC | Ω.m | g/cm3 | %/ºC | kgf/mm2 | c//* | c ┴ * |
Numberic Value | 450~460 | 0.15~0.2 | >104 | 4.7~5.1 | -0.2 | 5~10 | 14~15 × 10 -6 | 9~10× 10 -6 |