3 LAYER BLOWN FILM LINE FOR THE PRODUCTION
OF QUALITY TECHNICAL FILMS FOR INDUSTRIAL AND FOOD PACKAGING APPLICATIONS
IN WIDTH UP TO 2000 MM

Main features of the line

• The 3 extruders are on parallel lay-out on common frame (or upon request on radial lay-out); All are with a.c. vector motors, bimetallic barrel, ceramic lined heater bands, low-shear barrier screws.
• The coex head is the well reputed Multisplit type (direct feeding and binary repartition), featuring a very minimum melt resident time, a low-working pressure and a quite high self-clearing factor.
• The IBC construction is vertical passing through the head, thus granting an absolute temperature homogeneity of the steel mass, to the benefit of the thickness distribution.
• The die is 300, 350 or 400 mm diameter, internally chromed. Die gap is according to resins used.
• The dual lip cooling ring can be coupled with an automatic film profile control system, (a segmented flow design), that, thru 48 actuators, a circular scanner with capacity type head and a powerful software, grants gauge variations below the threshold of ± 4%.
• The oscillating nip is a 360° horizontal – diverging type, with air cushion rollers and option for additional nip-roll on the film descent section, before the photocell edge guide.
• The 2 station automatic winder is the well reputed “classic” Dolci winder: rugged, simple but highly reliable; it is a flat-bed type with contract winding on a large size rubber roller – reels max. diameter is 1000 mm.