Disc permanent Magnets product specification:
1.Grade: N33, N35, N38, N40, N42, N48, N50, N52 (M, H, SH, EH, UH,AH)
2.Shape:
Disc, Cylinder, Block,
Ring, Countersunk, Segment, Trapezoid, Irregular shapes and more. Customized Design (Design proper magnets for clients specific requirements)
3.Coating: Ni-Cu-Ni, Nickel, Zn, Gold, Silver, Copper,
Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and more.
4.Maximum Working Temperature:
N35-N52, 80°C(176°F)
35M-50M, 100°C(212°F)
35H-48H, 120°C(248°F)
35SH-45SH, 150°C(302°F)
33UH-40UH, 180°C(356°F)
33EH-38EH, 200°C(392°F)
28AH-35AH, 220°C(428°F)
5.Tolerance:
+/-0.05mm for small dimensions,
+/-0.1mm for common specifications,
+/-0.15mm for big blocks
6. Directions of Magnetization:
a. Axially Magnetized
b. Diametrally Magnetized
c. Radial Magnetized
d. Multi-poles magnetized
e. Customzied specific requirements magnetized
Application:
Sintered NdFeB Magnets are widely used in many fields, such as motors, sensors, microphones, wind turbines, wind generators, VCMs in hard disk drives, printer, switchboard, loudspeakers, magnetic separation, magnetic hooks,
magnetic holder,
magnetic chuck, common daily use, and so on.
Magnetic properties of Neodymiummagnets
Grade | Br | Hcb | Hcj | (BH)max | Density | Curie Temp | Working Temp |
mT | kGs | kA/m | kOe | kA/m | kOe | kJ/m3 | MGOe | g/cm3 | ℃ | ℃ |
N35 | 1180-1230 | 11800-12300 | ≥868 | ≥10900 | ≥955 | ≥12000 | 263-287 | 33-36 | 7.45 | 310 | ≤80 |
N38 | 1220-1280 | 12200-12800 | ≥899 | ≥11300 | ≥955 | ≥12000 | 287-310 | 36-39 |
N40 | 1250-1310 | 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 | 1380-1420 | 13600-14200 | ≥836 | ≥10500 | ≥876 | ≥11000 | 358-390 | 45-48 |
N50 | 1400-1450 | 13900-14500 | ≥836 | ≥10500 | ≥876 | ≥11000 | 374-406 | 47-51 |
N52 | 1430-1480 | 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 |
N33EH | 1130-1170 | 11300-11700 | ≥852 | ≥10700 | ≥2388 | ≥30000 | 247-263 | 31-33 |
N35EH | 1180-1220 | 11800-12200 | ≥868 | ≥10900 | ≥2388 | ≥30000 | 263-287 | 33-36 |