Tools
Engineering calculators
Punching force and busbar ampacity, worked through with the figures shown and the matching machines listed.
Machine selector
Enter the bar envelope and the operations required. The selector returns the machines that clear it, the machines that do not, and the reason in each case.
Busbar punching force calculator
Work out the press force a hole needs, from bar thickness, hole geometry and material shear strength β then see which machines clear it.
Busbar ampacity calculator
Continuous current rating for copper and aluminium bar, with the DIN 43671 correction factors that most online calculators leave out.