3 layers DOLCI blown film extruder

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.

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Machine Code
EX711
Manufacturer
DOLCI
Year
1989
Number of layers
3
Film structure
ABC
Material
LDPE/LLDPE
Film Width
1600
Extruder 1 Layer ref:
A
Screw diam 1
55mm
Description 1
6 components Doteco grado gravimetric. leverage ty screen changer
Extruder 2 Layer ref:
B
Screw diam 2
60mm
Description 2
6 components Doteco grado gravimetric. leverage ty screen changer
Extruder 3 Layer ref:
C
Screw diam 3
55mm
Description 3
6 components Doteco grado gravimetric. leverage ty screen changer
Head description
coex3 , rotating, IBC, Ultrasonic diam sensor
Die diam (mm)
300
Thickness controll system
Yes
Bubble cage
Yes
Panel for gussets
Yes
Take off unit
fixed
Corona treatment
Yes
Web guide
Erhard+Leimer
Rewinder Type
Double back to back
Note
Exact Evolution 10 2002 year
Machine Code EX711
Manufacturer DOLCI
Year 1989
Number of layers 3
Film structure ABC
Material LDPE/LLDPE
Film Width 1600
Extruder 1 Layer ref: A
Screw diam 1 55mm
Description 1 6 components Doteco grado gravimetric. leverage ty screen changer
Extruder 2 Layer ref: B
Screw diam 2 60mm
Description 2 6 components Doteco grado gravimetric. leverage ty screen changer
Extruder 3 Layer ref: C
Screw diam 3 55mm
Description 3 6 components Doteco grado gravimetric. leverage ty screen changer
Head description coex3 , rotating, IBC, Ultrasonic diam sensor
Die diam (mm) 300
Thickness controll system Yes
Bubble cage Yes
Panel for gussets Yes
Take off unit fixed
Corona treatment Yes
Web guide Erhard+Leimer
Rewinder Type Double back to back
Note Exact Evolution 10 2002 year
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