Press Brake Tonnage Calculator

Force requried (F):

Shear strength of the material (S):

Bend length (L):

Material thickness (T):

Inside bend radius (R):

How This Is Calculated

$$ F = \frac{S \cdot L \cdot T^2}{R} $$ where:

F = Force requried (tons)

S = Shear strength of the material (kgf/mm²)

L = Bend length (mm)

T = Material thickness (mm)

R = Inside bend radius (mm)

Assumptions

The material properties are unifrom.
The bending process is ideal.
Friction effects are not considered.
Springback effects are not considered.

Related Calculators

Bend Deduction

Minimum Bend Radius

K-Factor

Springback Equation

Punch Force