Permanent neodymium magnets
on the base of Neodymium-Iron-Boron (Nd-Fe-B) alloys
(TU U 21174514.001-96)
Permanent neodymium magnets on the base of Neodymium-Iron-Boron alloy are the most powerful permanent magnets in the world.
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Polus-N have a varied range of magnets to suit many different applications. Here you can browse through the range of magnets that we can supply and find out more about how they could help your business. |
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- magnetic remanence (in the gap) Вr, Т - 0,8...1,2
- magnetic remanence (on the surface) Вr, Т - 0,25...0,35
- coercitivity Нbc, kА/m - 400...1300
- coercitivity Нjc, kА/m - 400...1500
- energy product (ВН)max, kJ/m3 - 200... 400
- working temperature, ТоС - 100...150
- temperature coefficient of magnetic flux ξ,%/оС - 0,15
- density ρ, g/cm3 - 7,4
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Magnetic data sheets
(the thickness of the magnet is not mentioned and can be varied according customers needs)
| Disk |
Ring |
Plate |
| D |
D |
d |
a |
b |
| 5 |
|
|
6,5 |
6,5 |
| 6 |
|
|
9 |
7 |
| 6,5 |
|
|
11 |
11 |
| 7 |
|
|
12 |
12 |
| 8 |
|
|
13,5 |
11 |
| 9 |
|
|
13 |
14 |
| 10 |
|
|
16 |
16 |
| 11,5 |
11,5 |
7;7,2;7,4 |
16,5 |
16,5 |
| 13 |
|
|
16 |
8 |
| 14 |
|
|
16 |
12 |
| 14,5 |
14,5 |
8 |
18 |
13 |
| 14,9 |
|
|
18 |
17 |
| 16 |
|
|
20 |
8 |
| 16,5 |
|
|
20 |
10 |
| 17 |
|
|
20 |
15 |
| 18 |
18 |
3 |
21 |
16,3 |
| 20 |
|
|
24 |
14,5 |
| 22,5 |
22,5 |
5;10;15,5 |
24 |
24 |
| 25 |
25 |
17;18 |
25 |
19 |
| 26 |
26 |
12 |
30 |
20 |
| 27 |
27 |
6,3 |
30 |
24 |
| 27,5 |
28 |
6,2;12,8 |
30 |
27 |
| 28 |
|
|
33 |
8 |
| 31 |
31 |
3;19;19,7 |
35 |
12 |
| 32 |
32 |
12,8;20 |
40 |
11,5 |
| 35 |
|
|
40 |
28 |
| 36 |
36 |
7;26,5 |
40 |
40 |
| 38 |
|
|
46 |
5 |
| 41 |
|
|
46 |
5,5 |
| 41,5 |
41,5 |
15;20 |
46 |
28 |
| 44 |
44 |
22 |
48 |
19 |
| 47 |
|
|
48 |
28 |
| 48 |
48 |
6;15;16;25 |
50 |
10 |
| 49 |
|
|
50 |
30 |
| 50 |
|
|
50 |
50 |
| 51 |
51 |
14,5;29,5 |
59 |
14 |
| 58 |
|
|
60 |
40 |
| 59 |
59 |
5;20;35 |
64 |
19 |
| 60 |
|
|
70 |
40 |
| 64 |
64 |
20 |
70 |
70 |
| 69 |
|
|
62 |
38 |
| 70 |
|
|
65 |
20 |
| 71 |
|
|
65 |
50 |
| 72 |
72 |
31;32;42 |
80 |
16 |
| 73 |
|
|
80 |
29 |
| 80 |
80 |
27;31;40;51 |
80 |
50 |
| 90 |
90 |
63 |
83 |
10 |
| 100 |
100 |
28;46;51 |
100 |
50 |
| 102 |
|
|
|
|
| |
130** |
54 |
|
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** - combined
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Magnets can be protected by corrosion-resistant coatings such as zinc (Zn), nickel (Ni), titanium nitride (TiN).
We can also supply magnetic materials made of barium ferrite, AlNiCo and Sm-Co.
Approximate lead time 2-10 days.
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