Macchi 3 layers Blown film plant

Number of layers 3
Film structure ABC
Material LLDPE/LDPE/LLD/HDPE
Film Width 2400

Extruder 1 Layer ref: A
Screw diam 1 65mm
Description 1 Dosing units Doteco

Extruder 2 Layer ref: B
Screw diam 2 80mm
Description 2 Dosing units Doteco

Extruder 3 Layer ref: C
Screw diam 3 65mm
Description 3 Dosing units Doteco

Head description TE5303-IBC-350/500, Dual flow air ring carbon fibre, Die gap 1.8mm
Die diam (mm) 350mm
Thickness controll system Automatic Thickness control Kundig/K-Design Profile gauge control system
Panel for gussets Motorised side gusseting
Take off unit Oscillating
Corona treatment Martignoni
Web guide E&L
Rewinder Type Double back to back
Rewinder max reel diameter 800
Rewinder description fully automatic roll change
Note Tower included

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.