Handy Calculators › Press Brake Bend Calculator
Press brake bend calculator
Based on our 200 t Morgan Rushworth PBXS (3,100 mm bed) with Amada tooling. Pick your material, thickness and V-die to get the flat blank length, inside radius, minimum flange and bending force, with a dimensioned sketch.
Guide figures only. A 2D check of the cross-section only, based on Amada standard tooling on our 200 t Morgan Rushworth PBXS. Ask us to confirm before ordering.
Build your profile
Draw the side view (cross-section) of your part. We read lines, polylines and arcs. Your file stays on your device; nothing is uploaded.
Up to 8 bends. Up and down are as seen walking along the part from flange 1.
Results
Bend sequence and collision check
Auto picks the strongest punch that clears; suggested order is outer bends first. Move bends up or down to try your own order.
Want us to bend it? Email info@sellar-eng.co.uk or call 01466 794933.
How it works. Figures are for our 200 t Morgan Rushworth PBXS press brake (3,100 mm bed) with Amada standard tooling. V-die openings, inside radius (ir), minimum flange length (b) and force per metre are taken from Amada's published air bending force chart for 90° air bending (mild steel Rm ≈ 450 N/mm², stainless Rm ≈ 700 N/mm²). Recommended V follows Amada's rule: 6t up to 3 mm, 8t for 3 to 8 mm, 10t for 8 to 12 mm, 12t above. Following Amada's guidance, other materials use the mild steel chart multiplied by Rm/450 (S355 at 550 N/mm², aluminium 5083-O at 310 N/mm², and aluminium 1050A-H14 at 145 N/mm², the top of the EN 485-2 range of 105 to 145 N/mm²). Bend allowance uses the K-factor from DIN 6935, k = 0.65 + 0.5·log(ir/t), with K = k/2; flange lengths A and B are outside dimensions to the virtual sharp. The multi-bend collision check is a 2D cross-section check at the bottom of the stroke, using punch and die outlines taken from Amada’s published tooling catalogue, and treating the tool holder and upper beam as a block above the punch. Guide figures only. A 2D check of the cross-section only, based on Amada standard tooling on our 200 t Morgan Rushworth PBXS. Ask us to confirm before ordering.