Sintered High Performance NdFeB Neodymium Ring Magnet For Permanent Motor
NdFeB magnets have the characteristics of small size, light weight, and strong magnetism, making them the most cost-effective magnets to date. It is expected that there will be no alternative magnetic materials to neodymium iron boron in the next 20-30 years. The main raw materials for producing neodymium iron boron permanent magnet materials include metal neodymium, pure iron, boron iron alloy, and other additives. Neodymium iron boron, as a sunrise industry for energy conservation and environmental protection, is widely used in fields such as information technology, automobiles, nuclear magnetic resonance, wind power generation, and electric motors.
There are many levels of NdFeB magnets, with ordinary grades N series and a maximum resistance to high temperatures of 80 degrees Celsius. M series, with a maximum temperature resistance of 100 degrees Celsius. H series, with a maximum temperature resistance of 120 degrees Celsius. SH series, with a maximum high-temperature resistance of 150 degrees Celsius. UH series, with a maximum temperature resistance of 180 degrees Celsius. EH series, with a maximum temperature resistance of 200 degrees Celsius. AH series, with a maximum temperature resistance of 230 degrees Celsius.
Please see the following our neo magnet grade
grade | Br | Hcb | Hcj | (BH)max | temperature coefficient | Max working temperature | |||||
α Br | β Hcj | ||||||||||
T | kGs | kA/m | kOe | kA/m | kOe | kJ/m3 | MGOe | %/℃ | %/℃ | ℃ | |
N54 | 1.45-1.48 | 14.5-14.8 | ≥836 | ≥10.5 | ≥876 | ≥11 | 415-461 | 52-58 | -0.12 | -0.65 | 80 |
N52 | 1.42-1.45 | 14.2-14.8 | ≥836 | ≥10.5 | ≥876 | ≥11 | 398-415 | 50-52 | -0.12 | -0.65 | 80 |
N50 | 1.40-1.42 | 14.0-14.5 | ≥836 | ≥10.5 | ≥955 | ≥12 | 374-398 | 47-50 | -0.12 | -0.65 | 80 |
N48 | 1.37-1.40 | 13.7-14.2 | ≥836 | ≥10.5 | ≥955 | ≥12 | 358-374 | 45-48 | -0.12 | -0.65 | 80 |
N45 | 1.32-1.37 | 13.2-13.7 | ≥836 | ≥10.5 | ≥955 | ≥12 | 342-358 | 43-45 | -0.12 | -0.65 | 80 |
N42 | 1.29-1.32 | 12.9-13.2 | ≥836 | ≥10.5 | ≥955 | ≥12 | 318-334 | 40-42 | -0.12 | -0.65 | 80 |
N40 | 1.26-1.29 | 12.6-12.9 | ≥836 | ≥10.5 | ≥955 | ≥12 | 303-318 | 38-40 | -0.12 | -0.65 | 80 |
N38 | 1.22-1.26 | 12.2-12.6 | ≥859 | ≥10.8 | ≥955 | ≥12 | 287-303 | 36-38 | -0.12 | -0.65 | 80 |
N35 | 1.17-1.21 | 11.7-12.1 | ≥859 | ≥10.8 | ≥955 | ≥12 | 263-279 | 33-35 | -0.12 | -0.65 | 80 |
N33 | 1.14-1.17 | 11.4-11.7 | ≥836 | ≥10.5 | ≥955 | ≥12 | 247-263 | 31-33 | -0.12 | -0.65 | 80 |
N30 | 1.08-1.12 | 10.8-11.2 | ≥796 | ≥10.0 | ≥955 | ≥12 | 223-239 | 28-30 | -0.12 | -0.65 | 80 |
N52M | 1.42-1.45 | 14.2-14.5 | ≥995 | 12.5 | ≥1114 | ≥14 | 389-422 | 49-53 | -0.12 | -0.65 | 100 |
N50M | 1.39-1.45 | 13.9-14.5 | ≥1050 | ≥13.2 | ≥1114 | ≥14 | 374-406 | 47-51 | -0.12 | -0.65 | 100 |
N48M | 1.37-1.42 | 13.7-14.2 | ≥1018 | ≥12.8 | ≥1114 | ≥14 | 366-390 | 46-49 | -0.12 | -0.65 | 100 |
N45M | 1.32-1.38 | 13.2-13.8 | ≥987 | ≥12.4 | ≥1114 | ≥14 | 334-366 | 42-46 | -0.12 | -0.65 | 100 |
N42M | 1.29-1.32 | 12.9-13.2 | ≥955 | ≥12.0 | ≥1114 | ≥14 | 318-334 | 40-42 | -0.12 | -0.65 | 100 |
N40M | 1.26-1.29 | 12.6-12.9 | ≥939 | ≥11.8 | ≥1114 | ≥14 | 303-318 | 38-40 | -0.12 | -0.65 | 100 |
N38M | 1.22-1.26 | 12.2-12.6 | ≥916 | ≥11.5 | ≥1114 | ≥14 | 287-303 | 36-38 | -0.12 | -0.65 | 100 |
N35M | 1.17-1.21 | 11.7-12.1 | ≥876 | ≥11.0 | ≥1114 | ≥14 | 263-279 | 33-35 | -0.12 | -0.65 | 100 |
N33M | 1.14-1.17 | 11.4-11.7 | ≥852 | ≥10.7 | ≥1114 | ≥14 | 247-263 | 31-33 | -0.12 | -0.65 | 100 |
N30M | 1.08-1.12 | 10.8-11.2 | ≥812 | ≥10.2 | ≥1114 | ≥14 | 223-239 | 28-30 | -0.12 | -0.65 | 100 |
N52H | 1.42-1.45 | 14.2-14.5 | ≥1035 | ≥13.0 | ≥1353 | ≥16.5 | 398-422 | 50-53 | -0.11 | -0.58 | 120 |
N50H | 1.39-1.42 | 13.9-14.2 | ≥1035 | ≥13.0 | ≥1353 | ≥17 | 374-398 | 47-50 | -0.11 | -0.58 | 120 |
N48H | 1.36-1.42 | 13.6-14.2 | ≥1026 | ≥12.9 | ≥1353 | ≥17 | 358-374 | 45-49 | -0.11 | -0.58 | 120 |
N45H | 1.32-1.38 | 13.2-13.8 | ≥987 | ≥12.4 | ≥1353 | ≥17 | 334-366 | 42-46 | -0.11 | -0.58 | 120 |
N42H | 1.29-1.32 | 12.9-13.2 | ≥955 | ≥12.0 | ≥1353 | ≥17 | 318-334 | 40-42 | -0.11 | -0.58 | 120 |
N40H | 1.26-1.29 | 12.6-12.9 | ≥939 | ≥11.8 | ≥1353 | ≥17 | 303-318 | 38-40 | -0.11 | -0.62 | 120 |
N38H | 1.22-1.26 | 12.2-12.6 | ≥916 | ≥11.6 | ≥1353 | ≥17 | 287-303 | 36-38 | -0.11 | -0.62 | 120 |
N35H | 1.17-1.21 | 11.7-12.1 | ≥875 | ≥11.0 | ≥1353 | ≥17 | 263-279 | 33-35 | -0.11 | -0.62 | 120 |
N33H | 1.14-1.17 | 11.4-11.7 | ≥851 | ≥10.7 | ≥1353 | ≥17 | 247-263 | 31-33 | -0.11 | -0.62 | 120 |
N30H | 1.08-1.12 | 10.8-11.2 | ≥812 | ≥10.2 | ≥1353 | ≥17 | 223-239 | 28-30 | -0.11 | -0.62 | 120 |
N50SH | 1.39-1.42 | 13.9-14.2 | ≥1035 | ≥13.0 | ≥1500 | ≥19 | 398-415 | 47-50 | -0.11 | -0.6 | 150 |
N48SH | 1.36-1.42 | 13.6-14.2 | ≥1026 | ≥12.9 | ≥1592 | ≥20 | 358-398 | 45-49 | -0.11 | -0.6 | 150 |
N45SH | 1.32-1.36 | 13.2-13.6 | ≥987 | ≥12.4 | ≥1592 | ≥20 | 334-366 | 42-46 | -0.11 | -0.6 | 150 |
N42SH | 1.29-1.32 | 12.9-13.2 | ≥963 | ≥12.1 | ≥1592 | ≥20 | 318-334 | 40-42 | -0.11 | -0.6 | 150 |
N40SH | 1.26-1.29 | 12.6-12.9 | ≥931 | ≥11.7 | ≥1592 | ≥20 | 303-318 | 38-40 | -0.11 | -0.6 | 150 |
N38SH | 1.22-1.26 | 12.2-12.6 | ≥899 | ≥11.3 | ≥1592 | ≥20 | 287-303 | 36-38 | -0.11 | -0.6 | 150 |
N35SH | 1.17-1.21 | 11.7-12.1 | ≥876 | ≥11.0 | ≥1592 | ≥20 | 263-279 | 33-35 | -0.11 | -0.6 | 150 |
N33SH | 1.14-1.17 | 11.4-11.7 | ≥851 | ≥10.7 | ≥1592 | ≥20 | 247-263 | 31-33 | -0.11 | -0.6 | 150 |
N30SH | 1.08-1.12 | 10.8-11.2 | ≥812 | ≥10.2 | ≥1592 | ≥20 | 223-239 | 28-30 | -0.11 | -0.6 | 150 |
N45UH | 1.32-1.36 | 13.2-13.6 | ≥987 | ≥12.4 | ≥1990 | ≥25 | 334-366 | 42-46 | -0.1 | -0.55 | 180 |
N42UH | 1.29-1.32 | 12.9-13.2 | ≥963 | ≥12.1 | ≥1990 | ≥25 | 318-334 | 40-42 | -0.1 | -0.55 | 180 |
N40UH | 1.26-1.32 | 12.6-13.2 | ≥939 | ≥11.8 | ≥1990 | ≥25 | 303-318 | 38-40 | -0.1 | -0.55 | 180 |
N38UH | 1.22-1.26 | 12.2-12.6 | ≥915 | ≥11.5 | ≥1990 | ≥25 | 287-303 | 36-38 | -0.1 | -0.55 | 180 |
N35UH | 1.17-1.21 | 11.7-12.1 | ≥875 | ≥11.0 | ≥1990 | ≥25 | 263-279 | 33-35 | -0.1 | -0.55 | 180 |
N33UH | 1.14-1.17 | 11.4-11.7 | ≥851 | ≥10.7 | ≥1990 | ≥25 | 247-263 | 31-33 | -0.1 | -0.55 | 180 |
N30UH | 1.08-1.12 | 10.8-11.2 | ≥812 | ≥10.2 | ≥1990 | ≥25 | 223-239 | 28-30 | -0.1 | -0.55 | 180 |
N38EH | 1.22-1.29 | 12.2-12.9 | ≥907 | ≥11.4 | ≥2388 | ≥30 | 287-318 | 36-40 | -0.09 | -0.5 | 200 |
N35EH | 1.18-1.25 | 11.8-12.5 | ≥875 | ≥11.0 | ≥2388 | ≥30 | 263-295 | 33-37 | -0.09 | -0.5 | 200 |
N33EH | 1.14-1.17 | 11.4-11.7 | ≥851 | ≥10.7 | ≥2388 | ≥30 | 247-263 | 31-33 | -0.09 | -0.5 | 200 |
N30EH | 1.08-1.12 | 10.8-11.2 | ≥812 | ≥10.2 | ≥2388 | ≥30 | 223-239 | 28-30 | -0.09 | -0.5 | 200 |
N32AH | 1.12-1.20 | 10.8-12.0 | ≥860 | ≥10.8 | ≥2626 | ≥33 | 247-279 | 31-35 | -0.09 | -0.44 | 220 |