Press Brake Tonnage Chart & Bending Force Calculator for Sheet Metal

Press Brake Tonnage Calculation: Precision Engineering for Accurate Bending 

Accurate press brake tonnage calculation is essential for achieving precise bending angles, protecting press brake tooling, and securing high-repeatability. For standard 90° air bending of mild steel with a tensile strength of approx 450 N/mm2, selecting the correct bending force eliminates structural material cracking, tooling deflection, and machine overload.

Use the Press Brake Tonnage Calculator below to instantly analyze your required force based on material type, sheet thickness, bending length, and V-die opening width to eliminate costly manufacturing errors and optimize your production performance. It is ideal for CNC press brake operations, high-precision metal bending for mass production.

 

Press Brake Tonnage Calculator

ESTIMATED PRESSURE:
0.00 TONS
* This calculation is based on the formula: P = (650 * S² * L / V) / 9.8. For air bending reference only.

Basic Press Brake Bending Force Formula

For mild steel (450N/mm²), you can estimate the required tonnage with this formula:

P = (650 × S² × L) / (V × 1000)

P = Bending Force (Tons)

S = Plate Thickness (mm)

L = Plate Length (mm)

V = V-opening Width (mm)

*Note: For stainless steel, multiply the result by 1.5.

 

Use the correct tonnage calculator to optimize your bending process and improve manufacturing performance.

  Bending accuracy and repeatability
  Press Brake Tooling and machine service life
  Production consistency and efficiency
  Sheet metal bending quality
  Reduced material waste and downtime

Hydraulic Press Brake Tonnage Chart & Bending Force

 

Press Brake Tonnage Chart and Bending Force Table for mild steel

Thickness (mm) V-Opening (mm) Tonnage per Meter (T/M)
2.0 16 17
4.0 32 34
6.0 50 48
8.0 63 63

* Data based on mild steel with tensile strength of 450N/mm².

 

🚀 Applications of Press Brake Tonnage Chart

This press brake tonnage force/chart is widely used for:

  • 🔹 Stainless steel bending
  • 🔹 Aluminum sheet fabrication
  • 🔹 Electrical cabinet production
  • 🔹 Heavy plate bending applications
  • 🔹 HVAC duct manufacturing

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