NEW GEKA USA Punching Capacities Calculator
Perimeter(p) x Thickness x Tensile/2000 = US Tons
Please refer to the below drawing for more information about how to calculate the perimeter (p) of the most common shapes.
CAUTION: Never punch a diameter
smaller than the material thickness
Please select a shape and introduce measures:
Resistance is a compulsory field.
Example: for a given diameter, thickness and strength*, work out the tonnage.
Usual material strengths
|Material Name||Minimum Tensile||Maximum Tensile|
|6061 T6 Aluminum||45000|
the correct gap between punch and die:
|THICKNESS||RECOMMENDED DIE CLEARANCE|
|1/8″ to 1/2″||1/32″|
|1/2″ to 3/4″||1/16″|
|Mild steel (ST37 to 42)||10 %|
|3/4″ to 1″||3/32″|
|1″ & +||1/8″|
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