Sintered NdFeB magnet is the strongest magnetic permanent magnet material in the world today. Compared with traditional permanent magnet materials, it has excellent permanent magnet characteristics and high cost performance.Sintered NdFeb magnet is still the permanent magnet with the highest magnetic properties so far, and has long become a necessary functional material in many fields such as aerospace, national defense, electronic communications, clean energy, transportation, mining machinery, medical care and household appliances. Representative applications include permanent magnet motors, magnetic separation devices, nuclear magnetic resonance imaging, hard disk drives, consumer electronics and wind power. The sintered NdFeb block magnet produced by YanHe Magtech is often used in magnetizing wax repellent, automatic mahjong machine, door and window magnetic and magnetic tools.
Characteristic
Appearance: Smooth and Bright Surface, Burr-Free, Coating.
Advantages: Short production time and good price because of the simply production process.
Grade: N35~N54, N30M~N54M, N30H~N52H, N30SH~N48SH, N25UH~N45UH, N28EH~N40EH, N28AH~N40AH
Size: Regular size and large size and micro size and customized size
Magnetization mode: mostly thickness magnetization
Coating: Conventional nickel-copper-nickel (NiCuNi), blue-white zinc (Zn), phosphating/passivation, Epoxy (phosphating, nickel-copper, nickel-copper-nickel base); The other special coatings can also be provided, including Nickel+Stannum (NiSn), Teflon, gold plating, silver plating, Aluminium coating.
Application:
Automotive motors, wind turbines, safety systems, magnetic separators, magnetic resonance imaging (MRI), medical industry, special door locks, filters and filters, sensors, loudspeakers, microphones/earphone, brushless motors, micro motors, VCM, magnetic coupling, magnetic suckers, magnetic tools, etc.
Custmized service:
Our sintered NdFeB magnets are all REACH and ROHS compliant and don't contain any SVHC. It is produced according to ISO 9001 and ISO 14001 Quality Control Standards. PPAP, APQP, CPK/PPK, 8-D, CO, FTA are available. Sintered NdFeB magnets can be made in blocks, discs, rings, arcs, spheres, triangles, trapezoids and many other shapes. If you require a bespoke sintered NdFeB magnets or magnetic assembly, Technical Support or our sintered NdFeB Magnet Technical Data Sheet, please contact us. If you need a quotation for an existing magnet shape or a bespoke shape, please contact us. We offer a highly competitive price for your reference.
Typical Magnetic Performance for Sintered NdFeB magnet
Grade | Remanence | Coercive Force | Intrinsic Coercive | Max Energy | Max. Working Temp. | ||||
Br | Hcb | Hcj | (BH)max | ||||||
T | KGs | KA/m | KOe | KA/m | KOe | KJ/cm³ | MGOe | ||
N35 | 1.18-1.25 | 11.8-12.5 | ≥876 | ≥11.0 | ≥955 | ≥12 | 263-302 | 33-38 | 80 ℃ |
N38 | 1.23-1.30 | 12.3-13.0 | ≥876 | ≥11.0 | ≥955 | ≥12 | 286-326 | 36-41 | 80 ℃ |
N40 | 1.26-1.32 | 12.6-13.2 | ≥876 | ≥11.0 | ≥955 | ≥12 | 302-334 | 38-42 | 80 ℃ |
N42 | 1.30-1.35 | 13.0-13.5 | ≥860 | ≥10.8 | ≥955 | ≥12 | 318-350 | 40-44 | 80 ℃ |
N45 | 1.32-1.38 | 13.2-13.8 | ≥860 | ≥10.8 | ≥955 | ≥12 | 334-366 | 42-46 | 80 ℃ |
N48 | 1.37-1.43 | 13.7-14.3 | ≥836 | ≥10.5 | ≥875 | ≥11 | 358-390 | 45-49 | 80 ℃ |
N50 | 1.39-1.46 | 13.9-14.6 | ≥836 | ≥10.5 | ≥875 | ≥11 | 374-406 | 47-51 | 80 ℃ |
N52 | 1.42-1.48 | 14.2-14.8 | ≥836 | ≥10.5 | ≥875 | ≥11 | 390-422 | 49-53 | 80 ℃ |
N54 | 1.45-1.51 | 14.5-15.1 | ≥836 | ≥10.5 | ≥875 | ≥11 | 406-438 | 51-55 | 80 ℃ |
N35M | 1.18-1.25 | 11.8-12.5 | ≥876 | ≥10.5 | ≥1114 | ≥14 | 263-302 | 33-38 | 100 ℃ |
N38M | 1.23-1.30 | 12.3-13.0 | ≥916 | ≥11.5 | ≥1114 | ≥14 | 287-326 | 36-41 | 100 ℃ |
N40M | 1.26-1.32 | 12.6-13.2 | ≥939 | ≥11.8 | ≥1114 | ≥14 | 302-342 | 38-43 | 100 ℃ |
N42M | 1.30-1.35 | 13.0-13.5 | ≥955 | ≥12.0 | ≥1114 | ≥14 | 318-358 | 40-45 | 100 ℃ |
N45M | 1.32-1.38 | 13.2-13.8 | ≥971 | ≥12.2 | ≥1114 | ≥14 | 334-374 | 42-47 | 100 ℃ |
N48M | 1.37-1.43 | 13.7-14.3 | ≥995 | ≥12.5 | ≥1114 | ≥14 | 358-398 | 45-50 | 100 ℃ |
N50M | 1.39-1.46 | 13.9-14.6 | ≥995 | ≥12.5 | ≥1035 | ≥13 | 374-414 | 47-52 | 100 ℃ |
N52M | 1.42-1.48 | 14.2-14.8 | ≥995 | ≥12.5 | ≥1035 | ≥13 | 390-422 | 49-53 | 100 ℃ |
N54M | 1.45-15.0 | 14.5-15.0 | ≥995 | ≥12.5 | ≥1035 | ≥13 | 406-438 | 51-55 | 100 ℃ |
N33H | 1.14-1.17 | 11.4-11.7 | ≥836 | ≥10.5 | ≥1353 | ≥17 | 247-263 | 31-33 | 120 ℃ |
N35H | 1.18-1.25 | 11.8-12.5 | ≥876 | ≥11.0 | ≥1353 | ≥17 | 263-302 | 33-38 | 120 ℃ |
N38H | 1.23-1.30 | 12.3-13.0 | ≥916 | ≥11.5 | ≥1353 | ≥17 | 287-326 | 36-41 | 120 ℃ |
N40H | 1.26-1.32 | 12.6-13.2 | ≥939 | ≥11.8 | ≥1353 | ≥17 | 302-342 | 38-43 | 120 ℃ |
N44H | 1.30-1.37 | 13.0-13.7 | ≥963 | ≥12.1 | ≥1273 | ≥16 | 326-366 | 41-46 | 120 ℃ |
N46H | 1.34-1.40 | 13.4-14.0 | ≥995 | ≥12.5 | ≥1273 | ≥16 | 342-382 | 43-48 | 120 ℃ |
N48H | 1.36-1.42 | 13.6-14.2 | ≥1011 | ≥12.7 | ≥1273 | ≥16 | 358-398 | 45-50 | 120 ℃ |
N50H | 1.38-1.44 | 13.8-14.4 | ≥1026 | ≥12.9 | ≥1273 | ≥16 | 374-406 | 47-51 | 120 ℃ |
N52H | 1.40-1.46 | 14.0-14.6 | ≥1035 | ≥13.0 | ≥1273 | ≥16 | 382-422 | 48-53 | 120 ℃ |
N33SH | 1.14-1.17 | 11.4-11.7 | ≥836 | ≥10.5 | ≥1592 | ≥20 | 247-263 | 31-33 | 150 ℃ |
N35SH | 1.18-1.25 | 11.8-12.5 | ≥883 | ≥11.1 | ≥1592 | ≥20 | 263-302 | 33-38 | 150 ℃ |
N38SH | 1.23-1.30 | 12.3-13.0 | ≥923 | ≥11.6 | ≥1592 | ≥20 | 287-326 | 36-41 | 150 ℃ |
N40SH | 1.26-1.32 | 12.6-13.2 | ≥939 | ≥11.8 | ≥1592 | ≥20 | 302-342 | 38-43 | 150 ℃ |
N42SH | 1.28-1.34 | 12.8-13.4 | ≥955 | ≥12.0 | ≥1512 | ≥19 | 310-350 | 39-44 | 150 ℃ |
N45SH | 1.32-1.38 | 13.2-13.8 | ≥987 | ≥12.4 | ≥1512 | ≥19 | 334-374 | 42-47 | 150 ℃ |
N48SH | 1.36-1.42 | 13.6-14.2 | ≥1011 | ≥12.7 | ≥1512 | ≥19 | 358-390 | 45-49 | 150 ℃ |
N50SH | 1.38-1.44 | 13.8-14.4 | ≥1035 | ≥13.0 | ≥1512 | ≥19 | 372-406 | 47-51 | 150 ℃ |
N28UH | 1.07-1.09 | 10.7-10.9 | ≥780 | ≥9.80 | ≥1990 | ≥25 | 211-225 | 26-28 | 180 ℃ |
N30UH | 1.09-1.17 | 10.9-11.7 | ≥820 | ≥10.3 | ≥1990 | ≥25 | 223-263 | 28-33 | 180 ℃ |
N33UH | 1.14-1.22 | 11.4-12.2 | ≥859 | ≥10.8 | ≥1990 | ≥25 | 247-287 | 31-36 | 180 ℃ |
N35UH | 1.18-1.25 | 11.8-12.5 | ≥891 | ≥11.2 | ≥1990 | ≥25 | 263-302 | 33-38 | 180 ℃ |
N38UH | 1.22-1.28 | 12.2-12.8 | ≥923 | ≥11.6 | ≥1990 | ≥25 | 287-326 | 36-41 | 180 ℃ |
N40UH | 1.26-1.32 | 12.6-13.2 | ≥955 | ≥12.0 | ≥1990 | ≥25 | 302-334 | 38-42 | 180 ℃ |
N42UH | 1.29-1.35 | 12.9-13.5 | ≥955 | ≥12.0 | ≥1990 | ≥25 | 318-350 | 40-44 | 180 ℃ |
N45UH | 1.32-1.38 | 13.2-13.8 | ≥987 | ≥12.4 | ≥1990 | ≥25 | 334-374 | 42-47 | 180 ℃ |
N48UH | 1.36-1.41 | 13.6-14.1 | ≥1011 | ≥12.7 | ≥1911 | ≥24 | 358-398 | 45-50 | 180 ℃ |
N28EH | 1.07-1.09 | 10.7-10.9 | ≥780 | ≥9.80 | ≥2388 | ≥30 | 211-227 | 26-28 | 200 ℃ |
N30EH | 1.09-11.7 | 10.9-11.7 | ≥820 | ≥10.3 | ≥2388 | ≥30 | 223-263 | 28-33 | 200 ℃ |
N33EH | 1.14-1.20 | 11.4-12.0 | ≥859 | ≥10.8 | ≥2388 | ≥30 | 247-287 | 31-36 | 200 ℃ |
N35EH | 1.17-1.23 | 11.7-12.3 | ≥883 | ≥11.1 | ≥2388 | ≥30 | 263-295 | 33-37 | 200 ℃ |
N38EH | 1.22-1.28 | 12.2-12.8 | ≥923 | ≥11.6 | ≥2388 | ≥30 | 287-318 | 36-40 | 200 ℃ |
N40EH | 1.26-1.32 | 12.6-13.2 | ≥939 | ≥11.8 | ≥2388 | ≥30 | 302-334 | 38-42 | 200 ℃ |
N44EH | 1.30-1.35 | 13.0-13.5 | ≥979 | ≥12.3 | ≥2308 | ≥29 | 326-366 | 41-46 | 200 ℃ |
N28AH | 1.05-1.13 | 10.5-11.3 | ≥780 | ≥10.0 | ≥2786 | ≥35 | 207-247 | 26-31 | 220 ℃ |
N30AH | 1.09-1.17 | 10.9-11.7 | ≥820 | ≥10.3 | ≥2786 | ≥35 | 223-263 | 28-33 | 220 ℃ |
N35AH | 1.17-1.24 | 11.7-12.4 | ≥876 | ≥11.0 | ≥2786 | ≥35 | 263-295 | 33-37 | 220 ℃ |
Surface Treatment
Zinc coating:
Good corrosion resistance
Good salt spray resistance
Nickel coating:
Excellent corrosion resistance
Superior resistance against humidity and heat
Passivation:
Surface clean
Certain protection for uncoated magnets
Epoxy coating:
Excellent corrosion resistance
Superior salt spray resistance
Good resistance against humidity and heat
Name | White Zinc | Color Zinc | Nickel | Electroless Nickel | NiCuNi | NiSn | Epoxy | Phosphating | NiAu |
Coating Thickness (μm) | 8-15 | 10-15 | 20-30 | 20-30 | 15-30 | 20-30 | 10-30 | 1-3 | 10-20 |
Color | Blue & white | Multicolor | Silver | Silver | Silver | Silver | Black | Black | Gold |
PCT | 3 | 3 | 1 | 1 | 2 | 2 | 2 | 3 | 2 |
Humidity Test | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | 2 |
Salt Spray Test | 3 | 2 | 3 | 1 | 2 | 2 | 1 | 3 | 2 |
Collision Test | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 3 | 1 |
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