How to Select Press Brake Tonnage and Tooling

FAQ

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折弯机 · 设备 · 选型

Calculate tonnage based on sheet thickness, length, and material strength; selection of V-die and punch.

Bending tonnage estimation: P ≈ 1.42 × sheet thickness² × length × tensile strength / (1000 × V-die width); in practice, use the equipment manufacturer's formula and allow a 20% margin.

Key points:
- V-die width is generally taken as 6-8 times the sheet thickness (use the larger value for stainless steel).
- The punch R angle affects the inner radius and springback.
- Bending long sheets requires consideration of deflection compensation (hydraulic cushion or mechanical compensation).
- Stainless steel has large springback; prioritize equipment with CNC angle compensation.

When selecting, calculate based on the thickest and longest workpiece; avoid the "good enough" approach.

本文由 SteelWe 编辑与行业专家整理，内容仅供行业交流参考，不构成交易或投资建议。引用请注明来源。

How to Select Press Brake Tonnage and Tooling

Calculate tonnage based on sheet thickness, length, and material strength; selection of V-die and punch.

Bending tonnage estimation: P ≈ 1.42 × sheet thickness² × length × tensile strength / (1000 × V-die width); in practice, use the equipment manufacturer's formula and allow a 20% margin.

Key points:
- V-die width is generally taken as 6-8 times the sheet thickness (use the larger value for stainless steel).
- The punch R angle affects the inner radius and springback.
- Bending long sheets requires consideration of deflection compensation (hydraulic cushion or mechanical compensation).
- Stainless steel has large springback; prioritize equipment with CNC angle compensation.

When selecting, calculate based on the thickest and longest workpiece; avoid the "good enough" approach.

本文由 SteelWe 编辑与行业专家整理，内容仅供行业交流参考，不构成交易或投资建议。引用请注明来源。