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 greatly expands the application potential of permanent magnet materials, widely used in transportation, energy, communication, home appliances, machinery and medical and other fields, and is playing an important role in green energy and artificial intelligence, has become an indispensable important functional material in production and life.Sintered NdFeB magnets are mainly used in automobiles (electric drive, electric power steering and sensors, etc.), wind power generation, information industry (hard drive, CD drive), consumer electronics (mobile phone, digital camera), household appliances (frequency conversion air conditioning, refrigerator and washing machine), elevator linear motor, magnetic separator, nuclear magnetic resonance imager, etc. The application of intelligent manufacturing, intelligent driving and intelligent service represented by robots remains to be developed. The Sintered NdFeB Trapezoid Magnets produced by YanHe Megtech are widely used in sensors and nuclear magnetic resonance imagers.
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
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.
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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/m³ | 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 |
