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
- EX770
- Manufacturer
- BIELLONI
- Modello
- Coex 3
- Year
- 2000
- Number of layers
- 3
- Film Width
- 2000
- Output (Kg/h)
- 250 kg/h
- Extruder 1 Layer ref:
- A
- Screw diam 1
- 65 mm
- Description 1
- Gravimetric dosing unit Contrex M+S
- Extruder 2 Layer ref:
- B
- Screw diam 2
- 80 mm
- Description 2
- Gravimetric dosing unit Contrex M+S
- Extruder 3 Layer ref:
- C
- Screw diam 3
- 65 mm
- Description 3
- Gravimetric dosing unit Contrex M+S
- Head description
- TRO
- Die diam (mm)
- 2 dies inserts 350 mm diam gaps 1,7 and 2,2 mm
- Thickness controll system
- CONTREX
- Panel for gussets
- Yes
- Take off unit
- Oscillating
- Corona treatment
- MARTIGNONI
- Rewinder description
- SXO
- Note
- Microperforator Gusset units Option Print unit in line Total height 10 mt
| Machine Code | EX770 |
| Manufacturer | BIELLONI |
| Modello | Coex 3 |
| Year | 2000 |
| Number of layers | 3 |
| Film Width | 2000 |
| Output (Kg/h) | 250 kg/h |
| Extruder 1 Layer ref: | A |
| Screw diam 1 | 65 mm |
| Description 1 | Gravimetric dosing unit Contrex M+S |
| Extruder 2 Layer ref: | B |
| Screw diam 2 | 80 mm |
| Description 2 | Gravimetric dosing unit Contrex M+S |
| Extruder 3 Layer ref: | C |
| Screw diam 3 | 65 mm |
| Description 3 | Gravimetric dosing unit Contrex M+S |
| Head description | TRO |
| Die diam (mm) | 2 dies inserts 350 mm diam gaps 1,7 and 2,2 mm |
| Thickness controll system | CONTREX |
| Panel for gussets | Yes |
| Take off unit | Oscillating |
| Corona treatment | MARTIGNONI |
| Rewinder description | SXO |
| Note | Microperforator Gusset units Option Print unit in line Total height 10 mt |
