link chain bending and welding machine chain bending machine chain welding machine 3-22mm Automatic chain bending machine is a machine for the production of continuously bent round steel ... then the links are closed in a third bending process. Technical Data Wire diameter:3-6mm,6-11mm,11-16mm, ... (pitch):Max 130 mm;Wire infeed length:Max 100 mm;Tensile strength:Max 500Mpa;Output, chain links:40-70,35- ...