BENDING FORCE CALCULATOR
Tensile strength, Rm (N/mm2)
Target angle, α (°)
Thickness, S (mm)
Bending length, L (mm)
V-opening, V (mm)
Upper tool radius, R
Bending force, F (t)
1163.6
Inner radius, rᵢ (when R ≤ rᵢ) (mm)
45
Flange min. lenght B (mm)
221.1
Please check sheet metal material and tensile strength from the list below!
Materials Rm - tensile strength (N/mm2) Mild steel S235 510 Mild steel S355 630 Raex 300 1000 Raex 400 1250 Raex 450 1450 Raex 500 1600 Optim 500 MC 550-700 Optim 550 MC 600-760 Optim 600 MC 650-820 Optim 650 MC 700-880 Optim 700 MC 750-950 Optim 700 MC PLUS 750-950 Optim 900 QC 930-1200 Optim 960 QC 980-1250 Optim 1100 QC ≥1200 Ramor 400 1300 Ramor 450 1280 Ramor 500 1700 Ramor 550 1850 Miilux 400 1250 Miilux 450 1400 Miilux 500 1650 Protection 400 1250 Protection 450 1450 Protection 500 1600 Hardox 400 1250 Hardox 450 1400 Hardox 500 1650 Stainless steel EN 1.4301 600 Stainless steel EN 1.4501 830
F 1163.6
B 221.1
rᵢ 45
α 90
R 80
S 18
V 300
Tensile strength, Rm (N/mm2)
Target angle, α (°)
Thickness, S (mm)
Bending length, L (mm)
V-opening, V (mm)
Upper tool radius, R
Bending force, F (t)
1163.6 Inner radius, rᵢ (when R ≤ rᵢ) (mm)
45 Flange min. lenght B (mm)
221.1
1163.6 Inner radius, rᵢ (when R ≤ rᵢ) (mm)
45 Flange min. lenght B (mm)
221.1
Please check sheet metal material and tensile strength from the list below!
| Materials | Rm - tensile strength (N/mm2) |
| Mild steel S235 | 510 |
| Mild steel S355 | 630 |
| Raex 300 | 1000 |
| Raex 400 | 1250 |
| Raex 450 | 1450 |
| Raex 500 | 1600 |
| Optim 500 MC | 550-700 |
| Optim 550 MC | 600-760 |
| Optim 600 MC | 650-820 |
| Optim 650 MC | 700-880 |
| Optim 700 MC | 750-950 |
| Optim 700 MC PLUS | 750-950 |
| Optim 900 QC | 930-1200 |
| Optim 960 QC | 980-1250 |
| Optim 1100 QC | ≥1200 |
| Ramor 400 | 1300 |
| Ramor 450 | 1280 |
| Ramor 500 | 1700 |
| Ramor 550 | 1850 |
| Miilux 400 | 1250 |
| Miilux 450 | 1400 |
| Miilux 500 | 1650 |
| Protection 400 | 1250 |
| Protection 450 | 1450 |
| Protection 500 | 1600 |
| Hardox 400 | 1250 |
| Hardox 450 | 1400 |
| Hardox 500 | 1650 |
| Stainless steel EN 1.4301 | 600 |
| Stainless steel EN 1.4501 | 830 |
F 1163.6
B 221.1
rᵢ 45
α 90
R 80
S 18
V 300