Sintered NdFeB magnets 
NdFeB arc magnets NdFeB block magnets NdFeB ring magnets NdFeB cylinder magnets NdFeB disc magnets NdFeB tube magnets NdFeB rod magnets NdFeB sphere magnets Customer magnets Bonded NdFeB magnets Compression magnets Injection magnets AlNiCo magnets AlNiCo block magnets AlNiCo ring magnets U-shape magnets AlNiCo arc magnets AlNiCo disc magnets AlNiCo cylinder magnets Irregular magnets SmCo magnets SmCo arc magnets SmCo block magents SmCo Cylinder magnets SmCo disc magnets SmCo ring magnets Customers magnets Ferrite magnets Ferrite arc magnets Ferrite block magnets Ferrite cylinder magnets Ferrite disc magnets Ferrite ring magnets magnetic filter magnetic rods magnetic grids magnetic separator Water magnetic clean water magnetic filter magnetic speaker parts tweeter york motor parts rotor parts shaft parts stator parts other magnetic applications cow magnets cup magnet magneitc coupling Magnetic chuck magnetic holding tool Magnetic hook magnetic lifter OEM products 
Bonded NdFeB magnets are manufactured by binding rapid-quenching NdFeB powder. The powder is mixed with resin to form a magnet by compression molding with epoxy or infection molding with nylon. The latter technique is particularly effective in large volume production, though the magnetic value of products is lower than those made with compression molding because of their relatively lower density. Various shapes of high dimensional accuracy can be produced without further processing. Surface is treated by epoxy coating or nickel-plating to prevent corrosion
Magnetic Properties of compression molding bonded NdFeB Magnets:
|
Grade |
BNP-6 |
BNP-8 |
BNP-10 |
BNP-12 |
BNP-8H |
|
|
Br (T) |
0.52-0.60 |
0.60-0.65 |
0.65-0.70 |
0.70-0.76 |
0.55-0.62 |
|
|
HcB |
KA/M |
304-360 |
360-440 |
360-464 |
424-480 |
400-480 |
|
KOe |
3.8-4.5 |
4.5-5.5 |
4.5-5.8 |
5.3-6.0 |
5.0-6.0 |
|
|
HcJ |
KJ/m3 |
640-800 |
640-960 |
650-960 |
650-880 |
960-1280 |
|
KOe |
8.0-10 |
8.0-12 |
8.0-12 |
8.0-11 |
12-16 |
|
|
(BH)Max |
KJ/m3 |
40-56 |
56-72 |
72-80 |
80-96 |
48-72 |
|
MGOe |
5-7 |
7-9 |
9-10 |
10-12 |
6-9 |
|
|
Density (g/cm3) |
5.3-5.8 |
5.6-6.0 |
5.8-6.1 |
6.0-6.2 |
5.6-6.0 |
|
|
a Br (%/℃) |
-0.13 |
-0.13 |
-0.07- -0.105 |
-0.13 |
-0.07- -0.13 |
|
|
Tw (℃) |
140 |
140 |
120 |
130 |
130 |
|
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