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 |
Others in the same category:

KUHNE C5 / 2000 MAX TL
Category: Film extrusion lines
Subcategory: Blown film
Film Width (mm): 2000
Year: 2012

MACCHI COEX 5
Category: Film extrusion lines
Subcategory: Blown film
Film Width (mm): 2100
Year: 2015