3 layers MACCHI 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
EX748
Manufacturer
MACCHI
Year
2002
Number of layers
3
Film structure
ABC
Film Width
2200
Extruder 1 Layer ref:
A
Screw diam 1
60mm
Description 1
Screw year 2015 . Gravimetric doser and blender Doteco blendo 4 components
Extruder 2 Layer ref:
B
Screw diam 2
80mm
Description 2
Screw year 2015 . Gravimetric doser and blender Doteco blendo 4 components
Extruder 3 Layer ref:
C
Screw diam 3
60mm
Description 3
Screw year 2015 . Gravimetric doser and blender Doteco blendo 4 components
Head description
IBC, air ring Karat with automatic Thickness profile control Y 2019 . Ultrasonic sensors
Die diam (mm)
450mm
Thickness controll system
K design Karat 2019
Bubble cage
max circumference 6000mm
Panel for gussets
yes
Corona treatment
AFS
Web guide
K design year 2015
Rewinder Type
Double back to back
Rewinder description
Macchi BO Plus , gap and surface winding
Note
new cooling ring K design 2016 Gusseting units 2 complete heads 400 mm and 450 mm and double cooling rings
Machine Code EX748
Manufacturer MACCHI
Year 2002
Number of layers 3
Film structure ABC
Film Width 2200
Extruder 1 Layer ref: A
Screw diam 1 60mm
Description 1 Screw year 2015 . Gravimetric doser and blender Doteco blendo 4 components
Extruder 2 Layer ref: B
Screw diam 2 80mm
Description 2 Screw year 2015 . Gravimetric doser and blender Doteco blendo 4 components
Extruder 3 Layer ref: C
Screw diam 3 60mm
Description 3 Screw year 2015 . Gravimetric doser and blender Doteco blendo 4 components
Head description IBC, air ring Karat with automatic Thickness profile control Y 2019 . Ultrasonic sensors
Die diam (mm) 450mm
Thickness controll system K design Karat 2019
Bubble cage max circumference 6000mm
Panel for gussets yes
Corona treatment AFS
Web guide K design year 2015
Rewinder Type Double back to back
Rewinder description Macchi BO Plus , gap and surface winding
Note new cooling ring K design 2016 Gusseting units 2 complete heads 400 mm and 450 mm and double cooling rings
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