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
- EX725
- Manufacturer
- MACCHI
- Year
- 1988
- Number of layers
- 1
- Material
- LDPE,
- Film Width
- 1000
- Output (Kg/h)
- 60
- Screw diam 1
- 60/30
- Description 1
- Moretto feeder
- Head description
- Rotating
- Die diam (mm)
- 120 gap 1,2mm, plus 250
- Bubble cage
- yes
- Panel for gussets
- yes manual
- Take off unit
- Fixed
- Rewinder Type
- Double back to back
- Rewinder max reel diameter
- 1000
- Rewinder description
- Back to back with 4x 3" air shafts
- Note
- Microperforator
| Machine Code | EX725 |
| Manufacturer | MACCHI |
| Year | 1988 |
| Number of layers | 1 |
| Material | LDPE, |
| Film Width | 1000 |
| Output (Kg/h) | 60 |
| Screw diam 1 | 60/30 |
| Description 1 | Moretto feeder |
| Head description | Rotating |
| Die diam (mm) | 120 gap 1,2mm, plus 250 |
| Bubble cage | yes |
| Panel for gussets | yes manual |
| Take off unit | Fixed |
| Rewinder Type | Double back to back |
| Rewinder max reel diameter | 1000 |
| Rewinder description | Back to back with 4x 3" air shafts |
| Note | Microperforator |
OMICRON COEX 3
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Machine Code: EX605
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Year: 1994
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Film Width: 1600
BIELLONI Coex 3
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Machine Code: EX764
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Year: 1999
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Film Width: 1700
WINDMÖLLER & HÖLSCHER Only extrusion head
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Machine Code: EX673
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Year: 2000