Material Type The scale below highlights the effect that material type has on clamping forces.
s department for more information.
Material Thickness (mm)
neral / y milling
1
2
5
10
15
20 and above
Workpiece Material
✔ ✔ ✔
✔
100
Mild Steel
✔ ✔ ✔ ✔
✔
✔ ✔ ✔ ✔ ✔
✔
70
Carbon Steel
✔ ✔
✔
Tool Steel
60
✔ ✔ ✔
✔
%
Grip
50
Cast Iron
✔ ✔ ✔ ✔
✔
✔ ✔ ✔ ✔ ✔
✔
Air Gaps An air gap between the magnet and the load will also affect lifter performance. The chart below shows the general effect on different materials.
1.20
1.00
100
80
0.80
Mild Steel 9% Carbon Steel Mild Steel 9% Carbon Steel Tool Steel Cast Iron Tool Steel Cast Iron
60
0.60
40
0.40
20
0.20
0
0.00
0
0.2
0.5
0.7
1
Air Gap
Effective air gap (mm)
Semi - closed circuit Reduced holding power
As the air gap increases the magnetic performance reduces.
7
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