It is a roll forming line for the production of gutter curl with rapid change of profile. The gutter curl has an aesthetic and safety function. From this line products in different materials and sizes can be obtained. This line for gutter curl with rapid change of profile is made up of a decoiler, after come a chiselling unit and an hydraulic pre-cutting unit , then we find a rotating type roll forming machine where 4 set of forming rolls can be installed in order to obtain different types of profile, and finally there is a final supporting bench.