Amada Tooling Price list 2023

Punch Press

Tonnage Calculation

The punching tonnage is calculated by using the following formula:

Length of the cut edge (mm) x Material Thickness (mm) x Tensile Strength (kg/mm 2 ) 1000

Example 1 Rectangle 50 x 10 in 2.0 mm Stainless Steel

Tonnage Required = (50 + 50 + 10 + 10) x (2.0) x (60) 1000

Tonnage Required = 14.4 Tonnes

Example 2 30mm Diameter in 1.5 mm Mild Steel Tonnage Required = (3.142 x 30) x (1.5) x (40) 1000

Tonnage Required = 5.7 Tonnes

Minimum Hole Diameter

As a general guideline, the following table shows the minimum diameter (mm) of a punched hole with regards to material thickness.

t = Material Thickness

Material Type

Minimum Hole Diameter

Mild Steel Aluminium

1.0 x t 1.0 x t 2.0 x t

Stainless Steel

It is possible to punch smaller hits, please contact Tooling Hotline for assistance

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