Film-making machine and method for producing stretch films

The invention relates to a film-making machine (10) for producing stretch film, comprising an outlet device (20) with an outlet gap (22) for the outlet of free-flowing film material (100) and a rotatably mounted casting roll (30) for receiving the released free-flowing film material (100) on the surface (32) of the casting roll (30), and further comprising a cleaning device (40) with a rotatably mounted cleaning roll (42) for contacting the film material (100) lying on the surface (32) of the casting roll (30), wherein the cleaning device (40) has an adjusting mechanism (50) with a circumferential adjustment (52) for adjusting a cleaning position (PP) of the cleaning roll (42) around the circumferential direction of the casting roll (30).