Purline machine is a purline channel rollformer line, purline machine can produce C purline, Z purline, U purline, Sigma purline and L angle purline. Thickness is from 1.5mm to 4 mm, size from 80-300,100-400mm. The Purline machine including full automatic C purline roll forming machine, manual adjusting C purling rollformer line, full automatic Z purline machine and manual adjusting Z purline machine, full automatic CZ purline machine and half automatic CZ purline machine, full automatic Sigma purline machine and manual adjusting sigma purline machine. The purline machine working flow is: de-coiler, leveling system, roll forming machine, hydraulic punching system and cutting system. The cutting system has two types, front cutting and post cutting.