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Servo Press Tonnage Calculator

Calculate required press tonnage for blanking, drawing, bending, and forming operations

Calculate Tonnage

Presets:

Material Reference

MaterialTensile (MPa)Shear (MPa)Ratio
Mild Steel2702160.80
HSLA 4004003200.80
DP 5905904720.80
DP 7807806240.80
DP 9809807840.80
MS 118011809440.80
304 Stainless5203900.75
6061-T6 Aluminum3102000.65
Copper C1102401680.70

Formulas Used

Blanking: F = Perimeter × Thickness × Shear Strength (ratio varies by material)

Drawing: F = π × d × t × UTS × (Ratio - 0.7) + 30% blank holder force

V-Bending: F = (C × UTS × L × t²) / V — C varies: steel 1.33, stainless 1.5, aluminum 0.67, UHSS 1.6

Forming: F = Area × UTS × 1.3

Coining: F = Area × UTS × 3.0

⚠️ Safety Warning: All calculations are approximations for reference only. Always verify with qualified engineers and follow OSHA/CE/ISO safety standards before operation.