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Hydraulic Press Draw Force Calculator

Bend Force
Cycle Rate
Draw Force

Two different draw force estimators are available…one for circular parts and one for rectangular parts. For circular parts, just enter a few parameters (material yield strength, thickness, draw and blank diameters) and, PRESTO, the drawing calculator gives you draw tonnage and total tonnage figures. For rectangular part jobs, enter a similar parameters (material yield strength and thickness, as well as corner radius and straight line lengths) and draw tonnage and total tonnage figures are given.

Hydraulic Press Draw Force Calculator Description

DISCLAIMER: Actual drawing force hydraulic press calculations are affected by many factors such as friction between the material and the die, material thickness, material strength variations, rolling direction of the steel, work hardening, die lubrication, speed of draw, cushion pressure required and other parameters. This estimate calculates a preliminary value to be used for initial machine sizing. The die maker can provide a more accurate estimate of tonnage required.

The calculators below provide "rough estimates" of draw form. Most parts are neither simple circular nor rectangular parts. There are a number of more detailed methods of determining draw force for more complicated parts.

CALCULATOR DESCRIPTION »
Calculator-app-image

Input values in the boxes. Click here for yield strengths.

Note: This provides an estimate of the tonnage necessary to draw form a circular part. Actual tonnage should be confirmed with the manufacturer of the die.

*Holding or cushion tonnage is estimated at 1/3 of draw tonnage. Actual tonnage will vary as required to achieve a quality part.