Roll forming machine

Roll forming is a continuous metal forming process which bends or (forms˜ sheets, strips or coiled stock into predesigned shapes or profiles by passing the metal between successive pairs of rolls that increasingly (gradually) shape it till the desired cross section is achieved, thereby adding strength and rigidity to light weight metals. Except for a slight thinning of the metal at the bend radius, the metal thickness does not get altered.
Almost any material that can be formed to the desired radius at room temperature can be roll-formed. The more ductile the material, the better it will form. This process can handle ferrous, non-ferrous, hot rolled, cold rolled, polished, plated or pre-painted materials as well.
Metals as thin as 0.127 mm and as thick as 19 mm can be roll formed depending on the machinery.
Normally cross sectional tolerances from +/- 0.25 mm to +/- 0.78 mm can be achieved but if better tolerances are enquired, a material that is amenable to such tolerance should be chosen.