3 layers DOLCI COEX 90/160/90 film blowing machine

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.

Machine Code EX670
Manufacturer DOLCI
Model COEX 90/160/90
Year 1997
Number of layers 3
Film structure ABC
Material LDPE
Film Width (mm) 4000
Extruder 1 Layer ref: A
Screw diam 90/30
Description Gravim blender Doteco
Extruder 2 Layer ref: B
Screw diam 160/30
Description Gravim blender Doteco
Extruder 3 Layer ref: C
Screw diam 90/30
Description Gravim blender Doteco
Head description Coex3
Die diam (mm) 1600
Bubble cage Yes
Panel for gussets Yes
Take off unit Fixed
Web guide Yes
Rewinder max reel diameter 800
Additional information Gusseters. Winder net film width 4000 mm

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