Alpine 3 layers blown film machine

Number of layers 3
Film structure ABC
Material LDPE/HDPE
Film Width 1650
Output (Kg/h) 250

Extruder 1 Layer ref: A
Screw diam 1 50
Description 1 5 component gravimetric system, screen changer, AC motor

Extruder 2 Layer ref: B
Screw diam 2 65
Description 2 5 component gravimetric system, screen changer, AC motor

Extruder 3 Layer ref: C
Screw diam 3 50
Description 3 5 component gravimetric system, screen changer, AC motor

Head description Alpine fixed
Die diam (mm) 250
Thickness controll system Kundig
Bubble cage Yes
Panel for gussets yes
Take off unit rotating
Corona treatment Double Ferrarini e Benelli
Web guide Yes
Rewinder Type Double back to back
Note Tower not included. New head.

In a blown film extruder PE granulates (or other polymer) are melted in an extruder and
pushed through a circular die extruding a tube of molten polymer.
Tube is then inflated to multiples of its initial diameter and cooled to form a thin film.
Bobble is later collapsed and re-winded.