En Press Brake Tonnage Calculator estimates the bending force required for air bending based on material type, thickness, bend length, and V-die opening. Use it to support preliminary press brake selection and check whether your machine may have sufficient capacity for a planned job. Choose or enter the material’s tensile strength for a more relevant estimate. Actual tonnage requirements vary with material grade, tooling, and machine setup, so confirm calculations with your press brake and tooling manufacturer.
