Quality Control
Apart from the dimensional tolerances of length, width and height, permanent magnets have also deviations in shapes and positions..
![Tolerancias](https://www.imamagnets.com/wp-content/uploads/2014/08/Tolerancias-1024x191.jpg)
The main deviations in block magnets are mainly warping and parallelism. And in discs and ring magnets, the deviations are cone-shapes and concentricity.
Nominal Measure |
Isotropics magnets |
Antisotropics magnets |
Over |
Until |
Perpend. dir. pressing± |
Paralel. dir. pressing ± |
Perp. dir. de pressing± |
Paralelo. dir. pressing ± |
- |
4 |
0,25 |
0,30 |
0,25 |
0,30 |
4 |
6 |
0,25 |
0,30 |
0,25 |
0,30 |
6 |
8 |
0,25 |
0,30 |
0,25 |
0,30 |
8 |
10 |
0,30 |
0,40 |
0,30 |
0,40 |
10 |
13 |
0,30 |
0,40 |
0,30 |
0,40 |
13 |
16 |
0,30 |
0,40 |
0,35 |
0,45 |
16 |
20 |
0,30 |
0,40 |
0,45 |
0,55 |
20 |
25 |
0,30 |
0,40 |
0,55 |
0,70 |
25 |
30 |
0,35 |
0,45 |
0,70 |
0,90 |
30 |
35 |
0,40 |
0,50 |
0,80 |
1,00 |
35 |
40 |
0,45 |
0,55 |
0,95 |
1,20 |
40 |
45 |
0,50 |
0,60 |
1,10 |
1,35 |
45 |
50 |
0,60 |
0,80 |
1,20 |
- |
50 |
55 |
0,70 |
0,90 |
1,30 |
- |
55 |
60 |
0,75 |
1,00 |
1,45 |
- |
60 |
70 |
0,90 |
1,10 |
1,65 |
- |
70 |
80 |
1,10 |
1,35 |
1,90 |
- |
80 |
90 |
1,25 |
1,55 |
2,15 |
- |
90 |
100 |
1,40 |
1,70 |
2,40 |
- |
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