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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