Hinge Curling & Rolling Calculator

Calculate blank development length for rolled hinge knuckles and curled edges.

Enter material thickness S and curling radius R from the dropdown lists, then enter straight flange length l (default 0 mm). Click Calculate.

Thickness S: 0.1 0.2 0.3 0.4 0.5 0.6 0.8 1 1.2 1.3 1.5 1.6 1.8 2 2.5 3 3.5 4 4.5 5 5.5 6 8 10 12 14 16 18 20 mm     Radius R: 0.1 0.2 0.3 0.4 0.5 0.6 0.8 1 1.2 1.3 1.5 1.6 1.8 2 2.5 3 3.5 4 4.5 5 5.5 5.7 6 6.7 7.5 8 8.4 10 11 12 13 14 15 16 18 20 27 30 33 mm

Straight section l: mm