1. Main material: neodymium, iron, boron;
2. Size:Â per your requirement;
3. Grade: N33-N52, N35M-N50M, N35H-N45H, N35SH-N42SH, N35UH-N40UH, N35EH-N38EH;
4. Shape:Â disc, ring, cylinder, block, segment, trapezoid and custom shape;
5. Coating: Ni-Cu-Ni, Nickel, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and more;
6. Application:Â wind generator, motor, vcm, magnetic hooks, magnetic holders and etc.
7. Working temperature of neodymium magnets:
Grade | Max. Operating Temperature |
N35-N52 | 80°C(176 °F) |
33M-48M | 100°C(212°F) |
33H-48H | 120°C(248°F) |
30SH-45SH | 150°C(302°F) |
30UH-40UH | 180°C(356°F) |
28EH-38EH | 200°C(392°F) |
28AH-35AH | 220°C(428°F) |
8. Direction of magnetization:
 a. diametrically magnetized;
 b. radially magnetized;
 c. magnetized through thickness;
 d. axially magnetized;
 e. multi-poles magnetized;Â
Neodymium magnet have N35, N40, N42..., different grades, all of the performance, strength, working temperature are different.
Â
Grade | Br | Hcb | Hcj | (BH)max | Working Temp | ||||
mT | Gs | kA/m | Oe | kA/m | Oe | kJ/m3 | MGOe | ºC | |
N35 | 1180-1230 | 11800-12300 | ≥868 | ≥10900 | ≥955 | ≥12000 | 263-287 | 33-36 | ≤80 |
N38 | 1220-1280 | 12200-12800 | ≥899 | ≥11300 | ≥955 | ≥12000 | 287-310 | 36-39 | |
N40 | 1260-1310 | 12600-13100 | ≥923 | ≥11600 | ≥955 | ≥12000 | 302-326 | 38-41 | |
N42 | 1280-1340 | 12800-13400 | ≥923 | ≥11600 | ≥955 | ≥12000 | 318-342 | 40-43 | |
N45 | 1320-1370 | 13200-13700 | ≥876 | ≥11000 | ≥955 | ≥12000 | 342-366 | 43-46 | |
N48 | 1360-1420 | 13600-14200 | ≥836 | ≥10500 | ≥876 | ≥11000 | 358-390 | 45-48 | |
N50 | 1390-1450 | 13900-14500 | ≥836 | ≥10500 | ≥876 | ≥11000 | 374-406 | 47-51 | |
N52 | 1420-1480 | 14200-14800 | ≥796 | ≥10000 | ≥876 | ≥11000 | 390-422 | 49-53 | |
N35M | 1180-1230 | 11800-12300 | ≥868 | ≥10900 | ≥1114 | ≥14000 | 263-287 | 33-36 | ≤100 |
N38M | 1220-1280 | 12200-12800 | ≥899 | ≥11300 | ≥1114 | ≥14000 | 287-310 | 36-39 | |
N40M | 1260-1310 | 12600-13100 | ≥923 | ≥11600 | ≥1114 | ≥14000 | 302-326 | 38-41 | |
N42M | 1280-1340 | 12800-13400 | ≥923 | ≥11600 | ≥1114 | ≥14000 | 318-342 | 40-43 | |
N45M | 1340-1390 | 13400-13900 | ≥876 | ≥11000 | ≥1114 | ≥14000 | 342-366 | 43-46 | |
N48M | 1360-1420 | 13600-14200 | ≥876 | ≥11000 | ≥1114 | ≥14000 | 366-390 | 46-49 | |
N35H | 1180-1230 | 11800-12300 | ≥868 | ≥10900 | ≥1353 | ≥17000 | 263-287 | 33-36 | ≤120 |
N38H | 1220-1280 | 12200-12800 | ≥899 | ≥11300 | ≥1353 | ≥17000 | 287-310 | 36-39 | |
N40H | 1260-1310 | 12600-13100 | ≥923 | ≥11600 | ≥1353 | ≥17000 | 302-326 | 38-41 | |
N42H | 1280-1340 | 12800-13400 | ≥923 | ≥11600 | ≥1353 | ≥17000 | 318-342 | 40-43 | |
N45H | 1330-1390 | 13300-13900 | ≥923 | ≥11600 | ≥1353 | ≥17000 | 342-366 | 43-46 | |
N48H | 1360-1420 | 13600-14200 | ≥923 | ≥11600 | ≥1274 | ≥16000 | 366-390 | 46-49 | |
N33SH | 1140-1190 | 11400-11900 | ≥836 | ≥10500 | ≥1592 | ≥20000 | 247-270 | 31-34 | ≤150 |
N35SH | 1180-1230 | 11800-12300 | ≥868 | ≥10900 | ≥1592 | ≥20000 | 263-287 | 33-36 | |
N38SH | 1220-1280 | 12200-12800 | ≥899 | ≥11300 | ≥1592 | ≥20000 | 287-310 | 36-39 | |
N40SH | 1260-1310 | 12600-13100 | ≥923 | ≥11600 | ≥1592 | ≥20000 | 302-326 | 38-41 | |
N42SH | 1280-1340 | 12800-13400 | ≥923 | ≥11600 | ≥1592 | ≥20000 | 318-342 | 40-43 | |
N45SH | 1330-1390 | 13300-13900 | ≥923 | ≥11600 | ≥1592 | ≥20000 | 342-366 | 43-46 | |
N28UH | 1030-1090 | 10300-10900 | ≥780 | ≥9800 | ≥1990 | ≥25000 | 207-231 | 26-29 | ≤180 |
N30UH | 1090-1140 | 10900-11400 | ≥812 | ≥10200 | ≥1990 | ≥25000 | 223-247 | 28-31 | |
N33UH | 1130-1170 | 11300-11700 | ≥852 | ≥10700 | ≥1990 | ≥25000 | 247-263 | 31-33 | |
N35UH | 1180-1220 | 11800-12200 | ≥868 | ≥10900 | ≥1990 | ≥25000 | 263-287 | 33-36 | |
N38UH | 1220-1270 | 12200-12700 | ≥899 | ≥11300 | ≥1990 | ≥25000 | 287-310 | 36-39 | |
N28EH | 1030-1090 | 10300-10900 | ≥780 | ≥9800 | ≥2388 | ≥30000 | 207-231 | 26-29 | ≤200 |
N30EH | 1080-1130 | 10800-11300 | ≥812 | ≥10200 | ≥2388 | ≥30000 | 223-247 | 28-31 | |