The irregular Neodymium magnets are relatively difficult to machine because Neodymium magnets are too brittle when you machine them but we can do many complicated shapes of neodymium magnets according to customer's special requirement and this kind of magnets are usually used in some new developed electronic components and craft products.
There usually need many machining processes such as cutting, wire cutting, drilling, milling and turning etc and the cost is relative higher than ordinary shapes of magnets. The coatings are still Nickel(Ni-Cu-Ni), Black Nickel, Zinc(Trivalent), Epoxy, Stannum, Gold, Silver or Parylene etc in order to keep from rusting according to order requirement.
Magnetic Property for NdFeB magnets (sintered)
No. | Grade |
Br
|
Hcb
|
Hcj
|
(BH)max
| TW*
L/D=0.7 |
T
KGs | KA/m
KOe | KA/m
KOe | KJ/m3
MGOe |
Nom | Nim | Nom | Nim | Nom | Nim | ºC |
1 | N35 | 1.22
12.2 | 1.18
11.8 | 907
11.4 | 860
10.8 | ≥955
≥12 | 287
36 | 263
33 | ≤80 |
2 | N38 | 1.26
12.6 | 1.22
12.2 | 907
11.4 | 860
10.8 | ≥955
≥12 | 303
38 | 287
36 | ≤80 |
3 | N40 | 1.29
12.9 | 1.26
12.6 | 907
11.4 | 860
10.8 | ≥955
≥12 | 318
40 | 303
38 | ≤80 |
4 | N42 | 1.33
13.3 | 1.29
12.9 | 907
11.4 | 860
10.8 | ≥955
≥12 | 342
43 | 318
40 | ≤80 |
5 | N45 | 1.37
13.7 | 1.33
13.3 | 907
11.4 | 863
10.5 | ≥955
≥12 | 366
46 | 342
43 | ≤80 |
6 | N48 | 1.41
14.1 | 1.37
13.7 | 836
10.5 | 716
9.0 | ≥836
≥10.5 | 390
49 | 366
46 | ≤80 |
7 | N50 | 1.45
14.5 | 1.41
14.1 | 907
10.5 | 860
10.8 | ≥836
≥10.5 | 406
51 | 390
49 | ≤80 |
8 | N52 | 1.48
14.8 | 1.44
14.8 | 907
10.5 | 828
10.5 | ≥876
≥11.0 | 414
52 | 394
49.5 | ≤70 |
8 | N35M | 1.22
12.2 | 1.18
11.8 | 907
11.4 | 860
10.8 | ≥1114
≥14 | 287
36 | 263
33 | ≤100 |
9 | N38M | 1.26
12.6 | 1.22
12.2 | 907
11.4 | 860
10.8 | ≥1114
≥14 | 303
38 | 287
36 | ≤100 |
10 | N40M | 1.29
12.9 | 1.26
12.6 | 907
11.4 | 860
10.8 | ≥1114
≥14 | 318
40 | 303
38 | ≤100 |
11 | N42M | 1.33
13.3 | 1.29
12.9 | 907
11.4 | 860
10.8 | ≥1114
≥14 | 342
43 | 318
40 | ≤100 |
12 | N45M | 1.37
13.7 | 1.33
13.3 | 907
11.4 | 860
10.8 | ≥1114
≥14 | 366
46 | 342
43 | ≤100 |
13 | N48M | 1.41
14.1 | 1.37
13.7 | 907
11.4 | 860
10.8 | ≥1114
≥14 | 390
49 | 366
46 | ≤100 |
14 | N33H | 1.18
11.8 | 1.14
11.4 | 876
11.0 | 820
10.3 | ≥1353
≥17 | 263
33 | 247
31 | ≤120 |
15 | N35H | 1.22
12.2 | 1.18
11.8 | 907
11.4 | 876
11.0 | ≥1353
≥17 | 287
36 | 263
33 | ≤120 |
16 | N38H | 1.26
12.6 | 1.22
12.2 | 940
11.8 | 890
11.2 | ≥1353
≥17 | 303
38 | 287
36 | ≤120 |
17 | N40H | 1.29
12.9 | 1.26
12.6 | 995
12.5 | 916
11.5 | ≥1353
≥17 | 318
40 | 303
38 | ≤120 |
18 | N42H | 1.33
13.3 | 1.29
12.9 | 995
12.5 | 939
11.8 | ≥1353
≥17 | 342
43 | 318
40 | ≤120 |
19 | N44H | 1.35
13.5 | 1.33
13.3 | 1035
13.0 | 956
12.0 | ≥1353
≥17 | 358
45 | 342
43 | ≤120 |
20 | N46H | 1.38
13.8 | 1.35
13.5 | 1035
13.0 | 956
12.0 | ≥1353
≥17 | 374
47 | 358
45 | ≤120 |
21 | N33SH | 1.18
11.8 | 1.14
11.4 | 876
11.0 | 820
10.3 | ≥1592
≥20 | 263
33 | 247
31 | ≤150 |
22 | N35SH | 1.22
12.2 | 1.18
11.8 | 907
11.4 | 860
10.8 | ≥1592
≥20 | 287
36 | 263
33 | ≤150 |
23 | N38SH | 1.26
12.6 | 1.22
12.2 | 907
11.4 | 860
10.8 | ≥1592
≥20 | 303
38 | 287
36 | ≤150 |
24 | N40SH | 1.29
12.9 | 1.26
12.6 | 907
11.4 | 860
10.8 | ≥1592
≥20 | 318
40 | 303
38 | ≤150 |
25 | N42SH | 1.33
13.3 | 1.29
12.9 | 907
11.4 | 860
10.8 | ≥1592
≥20 | 342
43 | 318
40 | ≤150 |
26 | N44SH | 1.35
13.5 | 1.33
13.3 | 907
11.4 | 860
10.8 | ≥1592
≥20 | 358
45 | 342
43 | ≤150 |
27 | N30UH | 1.14
11.4 | 1.08
10.8 | 844
10.6 | 804
10.1 | ≥1989
≥25 | 247
31 | 223
28 | ≤180 |
37 | N33UH | 1.18
11.8 | 1.14
11.4 | 876
11.0 | 820
10.3 | ≥1989
≥25 | 263
33 | 247
30 | ≤180 |
38 | N35UH | 1.22
12.2 | 1.18
11.8 | 907
11.4 | 860
10.8 | ≥1989
≥25 | 287
36 | 263
33 | ≤180 |
39 | N38UH | 1.26
12.6 | 1.22
12.2 | 907
11.4 | 860
10.8 | ≥1989
≥25 | 303
38 | 287
36 | ≤180 |
40 | N30EH | 1.14
11.4 | 1.08
10.8 | 844
10.6 | 804
10.1 | ≥2387
≥30 | 247
31 | 223
28 | ≤200 |
41 | N33EH | 1.18
11.8 | 1.14
11.4 | 876
11.0 | 820
10.3 | ≥2388
≥30 | 263
33 | 247
31 | ≤200 |
42 | N35EH | 1.22
12.2 | 1.18
11.8 | 907
11.4 | 836
10.5 | ≥2388
≥30 | 287
36 | 263
33 | ≤200 |
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