Press Brake & Bending
V-Opening Calculator
This V-Opening Calculator helps you find the recommended minimum, optimal, and maximum V-opening sizes based on your sheet thickness. It ensures clean, accurate bends while protecting tooling and reducing trial-and-error during press brake setup.
- Sheet Thickness: Enter your sheet metal thickness to calculate suitable V-opening values for safe and precise bending.
- Minimum V-Opening: The smallest safe V-opening for your sheet thickness.
- Optimal V-Opening: The recommended V-opening for best bending results.
- Maximum V-Opening: The largest usable V-opening while maintaining bend quality.
V-Opening Calculator
Units:
Theory & Formulas
V-Opening Rule of Thumb:
- Minimum: V = 6 × thickness
- Optimal: V = 8 × thickness
- Maximum: V = 12 × thickness
Material Adjustments:
- Mild Steel: Use 8× factor
- Stainless Steel: Use 10× factor
- Aluminum: Use 6× factor
The inside bend radius is approximately V ÷ 6 for air bending operations.
- Minimum: V = 6 × thickness
- Optimal: V = 8 × thickness
- Maximum: V = 12 × thickness
Material Adjustments:
- Mild Steel: Use 8× factor
- Stainless Steel: Use 10× factor
- Aluminum: Use 6× factor
The inside bend radius is approximately V ÷ 6 for air bending operations.