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Sintered NdFeB Magnets

Sintered NdFeB Magnets
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Sintered NdFeB Magnets (also known as Neodymium magnets ,Neo magnets,or NIB) is the most powerful and advanced permanent magnet today .Sintered NdFeB magnets has the high remanence, high coercive force and high energy. It has very high performance and high cost ration. 

The sintered Neodymium magnets have some limitations due to their poor corrosion resistance. In high-humidity, high-temperature, high-PH applications, protective coating is necessary for the sintered NdFeB magnets. Available coating includes NiCUNI ,Zn plating, Expoxy coating,  parylene, and combinations of these coatings ( Detail coating opition for  Sintered NdFeB magnets)


It can be easily formed into various sizes and different shapes, which are  disc, ring, block, segment, special and so on.

cylinder magnets ndfeb

 Disc Neodymium magnets list  

block neodymium magnets

Block Neodymium Magnets list

ring magnets

Ring  Neodymium  Magnets list 

motor segment NdFeB magnet

Arc Neodymium magnets list

special shape Neodymium magnets

Special shape Neodymium Magnets list 

radial neodymium magnets

Radial Neodymium Magnets list 


Application Field

The Sintered NdFeB magnets earliest mainly application was for the high performance Permanent magnet DC motors,  magnetic separation, magnetic resonance imaging, sensors and loudspeakers etc. 



Magnetic Properties   (Download Magnetic Property  Datasheet of Sintered NdFeB Magnets)  

Grade Remanence(Br) Coercivity Force(Hcb) Intrinsic Coercive Force(Hcj) Max. Energy Product(BHmax) Maximum Operating Temp.
mT kGs kA/m kOe kA/m kOe kJ/m3 MGOe
N35 1170-1220 11.7-12.2 ≥868 ≥10.9 ≥955 ≥12 263-287 33-36 80 ℃
N38 1220-1250 12.2-12.5 ≥899 ≥11.3 ≥955 ≥12 287-310 36-39 80 ℃
N40 1250-1280 12.5-12.8 ≥907 ≥11.4 ≥955 ≥12 302-326 38-41 80 ℃
N42 1280-1320 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 80 ℃
N45 1320-1380 13.2-13.8 ≥923 ≥11.6 ≥955 ≥12 342-366 43-46 80 ℃
N48 1380-1420 13.8-14.2 ≥923 ≥11.6 ≥876 ≥12 366-390 46-49 80 ℃
N50 1400-1450 14.0-14.5 ≥796 ≥10.0 ≥876 ≥11 382-406 48-51 60 ℃
N52 1430-1480 14.3-14.8 ≥796 ≥10.0 ≥876 ≥11 398-422 50-53 60 ℃
35M 1170-1220 11.7-12.2 ≥868 ≥10.9 ≥1114 ≥14 263-287 33-36 100 ℃
38M 1220-1250 12.2-12.5 ≥899 ≥11.3 ≥1114 ≥14 287-310 36-39 100 ℃
40M 1250-1280 12.5-12.8 ≥923 ≥11.6 ≥1114 ≥14 302-326 38-41 100 ℃
42M 1280-1320 12.8-13.2 ≥955 ≥12.0 ≥1114 ≥14 318-342 40-43 100 ℃
45M 1320-1380 13.2-13.8 ≥995 ≥12.5 ≥1114 ≥14 342-366 43-46 100 ℃
48M 1360-1430 13.6-14.3 ≥1027 ≥12.9 ≥1114 ≥14 366-390 46-49 100 ℃
50M 1400-1450 14.0-14.5 ≥1033 ≥13.0 ≥1114 ≥14 382-406 48-51 100 ℃
33H 1130-1170 11.3-11.7 ≥836 ≥10.5 ≥1353 ≥17 247-271 31-34 120 ℃
35H 1170-1220 11.7-12.2 ≥868 ≥10.9 ≥1353 ≥17 263-287 33-36 120 ℃
38H 1220-1250 12.2-12.5 ≥899 ≥11.3 ≥1353 ≥17 287-310 36-39 120 ℃
40H 1250-1280 12.5-12.8 ≥923 ≥11.6 ≥1353 ≥17 302-326 38-41 120 ℃
42H 1280-1320 12.8-13.2 ≥955 ≥12.0 ≥1353 ≥17 318-342 40-43 120 ℃
45H 1300-1360 13-13.6 ≥963 ≥12.1 ≥1353 ≥17 326-358 43-46 120 ℃
48H 1370-1430 13.7-14.3 ≥995 ≥12.5 ≥1353 ≥17 366-390 46-49 120 ℃
30SH 1080-1130 10.8-11.3 ≥804 ≥10.1 ≥1592 ≥20 223-247 28-31 150 ℃
33SH 1130-1170 11.3-11.7 ≥844 ≥10.6 ≥1592 ≥20 247-271 31-34 150 ℃
35SH 1170-1220 11.7-12.2 ≥876 ≥11.0 ≥1592 ≥20 263-287 33-36 150 ℃
38SH 1220-1250 12.2-12.5 ≥907 ≥11.4 ≥1592 ≥20 287-310 36-39 150 ℃
40SH 1240-1280 12.5-12.8 ≥939 ≥11.8 ≥1592 ≥20 302-326 38-41 150 ℃
42SH 1280-1320 12.8-13.2 ≥987 ≥12.4 ≥1592 ≥20 318-342 40-43 150 ℃
45SH 1320-1380 13.2-13.8 ≥1003 ≥12.6 ≥1592 ≥20 342-366 43-46 150 ℃
28UH 1020-1080 10.2-10.8 ≥764 ≥9.6 ≥1990 ≥25 207-231 26-29 180 ℃
30UH 1080-1130 10.8-11.3 ≥812 ≥10.2 ≥1990 ≥25 223-247 28-31 180 ℃
33UH 1130-1170 11.3-11.7 ≥852 ≥10.7 ≥1990 ≥25 247-271 31-34 180 ℃
35UH 1180-1220 11.8-12.2 ≥860 ≥10.8 ≥1990 ≥25 263-287 33-36 180 ℃
38UH 1220-1250 12.2-12.5 ≥876 ≥11.0 ≥1990 ≥25 287-310 36-39 180 ℃
40UH 1240-1280 12.5-12.8 ≥899 ≥11.3 ≥1990 ≥25 302-326 38-41 180 ℃
28EH 1040-1090 10.4-10.9 ≥780 ≥9.8 ≥2388 ≥30 207-231 26-29 200 ℃
30EH 1080-1130 10.8-11.3 ≥812 ≥10.2 ≥2388 ≥30 223-247 28-31 200 ℃
33EH 1130-1170 11.3-11.7 ≥836 ≥10.5 ≥2388 ≥30 247-271 31-34 200 ℃
35EH 1170-1220 11.7-12.2 ≥876 ≥11.0 ≥2388 ≥30 263-287 33-36 200 ℃
38EH 1220-1250 12.2-12.5 ≥899 ≥11.3 ≥2388 ≥30 287-310 36-39 200 ℃


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