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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
- EX661
- Manufacturer
- WINDMÖLLER & HÖLSCHER
- Modello
- VAREX
- Year
- 1998
- Number of layers
- 5
- Film structure
- A-B-C-D-E
- Material
- LDPE, LLDPE, EVOH
- Film Width
- 2200
- Output (Kg/h)
- 500 Kg/h
- Extruder 1 Layer ref:
- A
- Screw diam 1
- 90 L/D 30
- Description 1
- Gravimetric doser Module G,1+2 comp, hydraulic screen changer, 4 zones thermo regulation, Bimetallic barrel, 110 Kw motor
- Extruder 2 Layer ref:
- B
- Screw diam 2
- 50 mm L/D 25
- Description 2
- Gravimetric doser Module G 1+4 comp, hydraulic screen changer, 4 zones thermo regulation, Bimetallic barrel, 30 Kw motor
- Extruder 3 Layer ref:
- C
- Screw diam 3
- 60 mm L/D 30
- Description 3
- Gravimetric doser Module G 1+4 comp, hydraulic screen changer, 4 zones thermo regulation, Bimetallic barrel, 55 Kw motor
- Extruder 4 Layer ref:
- D
- Screw diam 4
- 50 mm L/D 25
- Description 4
- Gravimetric doser Module G 1+2 comp, hydraulic screen changer, 4 zones thermo regulation, Bimetallic barrel, 30 Kw motor
- Extruder 5 Layer ref:
- E
- Screw diam 5
- 60 mm L/D30
- Description 5
- Gravimetric doser Module G 1+4 comp, hydraulic screen changer, 4 zones thermo regulation, Bimetallic barrel, 55 Kw motor
- Head description
- B 400/500-5-ZIK-P2
- Die diam (mm)
- 500 mm Gap 1,25 spare die 400mm
- Thickness controll system
- Optifil Plus modular process automation system
- Bubble cage
- Yes
- Bubble cage
- Ultrasonic bubble control
- Take off unit
- oscillating
- Corona treatment
- Softal
- Web guide
- Yes
- Web guide
- YES
- Rewinder Type
- Double back to back
- Rewinder max reel diameter
- 1000 mm
- Rewinder description
- Surface driven , center-surface driven, center gap
- Note
- Centralized resin vacuum conveying system Ultrasonic bubble control Film thickness : TDS 10-250µm, actual produced 30-150µm Thickness gauge upgraded in 2019 Extruder's screws replaced in 2019 Several spares available, among which also: - spare bottom part of extrusion head (distributuon part) - heaters - complete set for 400mm die
| Machine Code | EX661 |
| Manufacturer | WINDMÖLLER & HÖLSCHER |
| Modello | VAREX |
| Year | 1998 |
| Number of layers | 5 |
| Film structure | A-B-C-D-E |
| Material | LDPE, LLDPE, EVOH |
| Film Width | 2200 |
| Output (Kg/h) | 500 Kg/h |
| Extruder 1 Layer ref: | A |
| Screw diam 1 | 90 L/D 30 |
| Description 1 | Gravimetric doser Module G,1+2 comp, hydraulic screen changer, 4 zones thermo regulation, Bimetallic barrel, 110 Kw motor |
| Extruder 2 Layer ref: | B |
| Screw diam 2 | 50 mm L/D 25 |
| Description 2 | Gravimetric doser Module G 1+4 comp, hydraulic screen changer, 4 zones thermo regulation, Bimetallic barrel, 30 Kw motor |
| Extruder 3 Layer ref: | C |
| Screw diam 3 | 60 mm L/D 30 |
| Description 3 | Gravimetric doser Module G 1+4 comp, hydraulic screen changer, 4 zones thermo regulation, Bimetallic barrel, 55 Kw motor |
| Extruder 4 Layer ref: | D |
| Screw diam 4 | 50 mm L/D 25 |
| Description 4 | Gravimetric doser Module G 1+2 comp, hydraulic screen changer, 4 zones thermo regulation, Bimetallic barrel, 30 Kw motor |
| Extruder 5 Layer ref: | E |
| Screw diam 5 | 60 mm L/D30 |
| Description 5 | Gravimetric doser Module G 1+4 comp, hydraulic screen changer, 4 zones thermo regulation, Bimetallic barrel, 55 Kw motor |
| Head description | B 400/500-5-ZIK-P2 |
| Die diam (mm) | 500 mm Gap 1,25 spare die 400mm |
| Thickness controll system | Optifil Plus modular process automation system |
| Bubble cage | Yes |
| Bubble cage | Ultrasonic bubble control |
| Take off unit | oscillating |
| Corona treatment | Softal |
| Web guide | Yes |
| Web guide | YES |
| Rewinder Type | Double back to back |
| Rewinder max reel diameter | 1000 mm |
| Rewinder description | Surface driven , center-surface driven, center gap |
| Note | Centralized resin vacuum conveying system Ultrasonic bubble control Film thickness : TDS 10-250µm, actual produced 30-150µm Thickness gauge upgraded in 2019 Extruder's screws replaced in 2019 Several spares available, among which also: - spare bottom part of extrusion head (distributuon part) - heaters - complete set for 400mm die |
WINDMÖLLER & HÖLSCHER OPTIMEX
-
Machine Code: EX763
-
Year: 2014
-
Film Width: 2200
BIELLONI Coex 3
-
Machine Code: EX764
-
Year: 1999
-
Film Width: 1700
