3 layers DOLCI COEX 90/160/90 blown film plant

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 EX671
Manufacturer DOLCI
Model COEX 90/160/90
Year 1998
Number of layers 3
Film structure ABC
Material LDPE
Film Width (mm) 4900
Extruder 1 Layer ref: A
Screw diam 90/30
Description Gravim blender Doteco 2018
Extruder 2 Layer ref: B
Screw diam 160/30
Description Gravim blender Doteco 2018
Extruder 3 Layer ref: C
Screw diam 90/30
Description Gravim blender Doteco 2018
Head description Coex3 head
Die diam (mm) 1800
Bubble cage Yes
Panel for gussets Yes
Take off unit rotating
Web guide Yes
Rewinder max reel diameter 800

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