Select hole type - Round or Other. Select Hole Size for Round or enter the Perimeter (in inches) of the hole if Other is selected. Select Material Type. Select Material Thickness or insert your material thickness if it is not listed. Click Calculate.

Hole Punch Tonnage Diameter(in): {perimeter} > 1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1 1-1/2 2 2-1/2 3 3-1/2 4 4-1/2 5 or Perimeter(in): Material Type:  Aluminum - Soft Sheet Aluminum - Half Hard Aluminum - Hard Brass - Soft Sheet Brass - Half Hard Copper - Rolled Steel - Mild Steel - ASTM-A36 Steel - .50 Carbon Steel - Cold Drawn Steel - Stainless (18-8)  Mat Thick(in):  {other} > 20 Ga. 18 Ga. 16 Ga. 14 Ga. 12 Ga. 11 Ga. 10 Ga. 3/16" 1/4" 5/16" 3/8" 1/2"

i.e. For a 1/2" X 3/4" rectangular hole in 1/8" mild steel: Hole Perimeter = 2.5" Material Type = Steel-Mild Material Thickness (in) = 0.125 Tonnage = 7.813 tons

This information is valuable when determining which of the Conway Press C-Series hydraulic presses will best suit your needs. Additional information regarding the differences about the C-Series models is available on the C-Series product page. Please let us know if we can help you use this calculator or in selecting a Conway Hydraulic Press.