3 layers BIELLONI blown film 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.

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Machine Code
EX771
Manufacturer
BIELLONI
Year
1998
Number of layers
3
Film Width
2000
Output (Kg/h)
250 kg/h
Extruder 1 Layer ref:
A
Screw diam 1
65mm
Description 1
Gravimetric dosing unit Contrex M+S
Extruder 2 Layer ref:
B
Screw diam 2
80mm
Description 2
Gravimetric dosing unit Contrex M+S
Extruder 3 Layer ref:
C
Screw diam 3
65mm
Description 3
Gravimetric dosing unit Contrex M+S
Die diam (mm)
400mm- gap.2,2
Thickness controll system
CONTREX
Take off unit
Oscillating
Corona treatment
FERRARINI
Rewinder Type
Double back to back
Note
Microperforator Total height 10 mt
Machine Code EX771
Manufacturer BIELLONI
Year 1998
Number of layers 3
Film Width 2000
Output (Kg/h) 250 kg/h
Extruder 1 Layer ref: A
Screw diam 1 65mm
Description 1 Gravimetric dosing unit Contrex M+S
Extruder 2 Layer ref: B
Screw diam 2 80mm
Description 2 Gravimetric dosing unit Contrex M+S
Extruder 3 Layer ref: C
Screw diam 3 65mm
Description 3 Gravimetric dosing unit Contrex M+S
Die diam (mm) 400mm- gap.2,2
Thickness controll system CONTREX
Take off unit Oscillating
Corona treatment FERRARINI
Rewinder Type Double back to back
Note Microperforator Total height 10 mt
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