"Cradle" type winder
A flat head extrusion system for the production of thin manual stretch film on 1-m wide reels recently rolled off the assembly line at Dolci Extrusion. In particular, the system's winder has been optimised to ensure precise and consistent tension control of films that reach thicknesses of between 8 and 12 microns. The winder speed has been increased to 750 m/sec and the reel changing time at the top processing speed is 17 sec. Instead of a lateral pusher device, the winder features a "cradle" that, by supporting the reel from below, prevents the film edges from being damaged. The line has a throughput speed of 800 kg/h, and can be equipped with a jumbo reel winder or, alternatively, with a chill-roll set with a diameter of 1500 mm for stretch films (the "power" and "superpower" types).