3 layers WINDMOLLER & HOLSCHER VAREX 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.

Machine Code EX693
Manufacturer WINDMOLLER & HOLSCHER
Model VAREX
Year 2006
Number of layers 3
Film structure ABC
Material LDPE, LLDPE, MDPE
Film Width (mm) 1800
Output (Kg/h) 350Kg/h
Extruder 1 Layer ref: A
Screw diam 60mm
Description AC motor 60 kW, Gravimetric doser Doteco 6 comp, , hydraulic screen changer
Extruder 2 Layer ref: B
Screw diam 100mm
Description AC motor 160 kW , Gravimetric doser Doteco 6 comp, hydraulic screen changer
Extruder 3 Layer ref: C
Screw diam 60mm
Description AC motor 60 kW, Gravimetric doser Doteco 6 comp, , hydraulic screen changer
Die diam (mm) 250
Thickness controll system Thickness gauge Kundic control OPTIFIL P3
Bubble cage yes. Utlasonic sensors for width control
Panel for gussets yes
Take off unit Fixed
Corona treatment CASON
Rewinder description Width 1800mm

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