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 Segment 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 Segment Magnets are mainly used in automotive manufacturing and electronic equipment.If necessary, welcome to call or email us for consultation!
Characteristic
As usual, we call them NdFeB segments, neodymium magnet arc, magnet arc or neodymium tile magnets, these are widely used in the system of high grade Motor or Generator's magnetic rotor, but they are easily damaged which will stick to the surface between magnet and yoke, and increase the gap distance. Thus, a pole shoe made of the same or similar magnetic material is needed with the yoke. Sintered NdFeB Segment Magnet is the brunch of NdFeB magnet, intered NdFeB segment magnet is a type of magnetic material that has unique properties. These magnets are known for their high magnetic strength, making them ideal for a wide range of applications. In addition to their strength, intered NdFeB segment magnets are also known for their high resistance to demagnetization, making them a reliable choice for long-term use.
Appearance: Smooth and bright surface without burrs.
Customized service
Grades: N30~N54, N30M~N52M, N30H~N52H, N30SH~N48SH, N25UH~N45UH, N28EH~N40EH, N28AH~N40AH
Size: According to customer requirements.
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
Mainly used in PM DC motor, PM Brushless motor, PM Servo motor, PM Stepper motor. PM Linear motor, PM motor magnets, Micro-motor 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/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 |
