Use this quick bending calculator tool to input material type and thickness, die and punch parameters, and overall bending length. (Check out the quick reference press brake tonnage chart). Then press a button and the exact tonnage is revealed to process a 90 degree air bend. Other parameters are also revealed automatically.
Input data into the boxes for your material and punch & die configuration. This estimates the tonnage required to bend steel a complete 90°.
DISCLAIMER: Actual bending force is 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 and other parameters. This estimator calculates a force representative of the press brake requirement for air bending. Sizing of a machine or available die width should allow for up to 20% additional capacity. Pacific Press makes no guarantee of actual force required to make a bend in a specific part.