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
- EX832
- Manufacturer
- WINDMÖLLER & HÖLSCHER
- Year
- 1996
- Number of layers
- 3
- Overhaul/renovation
- gravimetric, thickness gauge and control, air ring, corona treatment, bubble cage, IBC control and ultrasonic gauges, head re-chroming, between 2013 and 2018.
- Film structure
- ABC
- Material
- LDPE, LLDPE, MDPE
- Film Width
- 1800
- Output (Kg/h)
- 350
- Extruder 1 Layer ref:
- A
- Screw diam 1
- 60mm. L/D30
- Description 1
- 4 components INOEX, hydraulic screen changer,
- Extruder 2 Layer ref:
- B
- Screw diam 2
- 90mm L/D30
- Description 2
- 4 components INOEX, hydraulic screen changer,
- Extruder 3 Layer ref:
- C
- Screw diam 3
- 60mm L/D30
- Description 3
- 4 components INOEX, hydraulic screen changer,
- Head description
- IBC with auto diameter control via 3 ultra sound sensors, KARAT air ring with automatic thickness profile control,
- Die diam (mm)
- 315
- Thickness controll system
- Kundig thickness gauge and Karat automatic air ring for thickness profile control
- Bubble cage
- motorised and with silicon rollers for mark free
- Take off unit
- rotating
- Corona treatment
- Vetaphone. 2x double side treaters: 2xCP3 6kw - 1x CP1C 1kw
- Web guide
- BST with automatic entering of sensors
- Rewinder Type
- Double back to back
- Rewinder description
- model Filmatic
- Note
- Automatic width control
| Machine Code | EX832 |
| Manufacturer | WINDMÖLLER & HÖLSCHER |
| Year | 1996 |
| Number of layers | 3 |
| Overhaul/renovation | gravimetric, thickness gauge and control, air ring, corona treatment, bubble cage, IBC control and ultrasonic gauges, head re-chroming, between 2013 and 2018. |
| Film structure | ABC |
| Material | LDPE, LLDPE, MDPE |
| Film Width | 1800 |
| Output (Kg/h) | 350 |
| Extruder 1 Layer ref: | A |
| Screw diam 1 | 60mm. L/D30 |
| Description 1 | 4 components INOEX, hydraulic screen changer, |
| Extruder 2 Layer ref: | B |
| Screw diam 2 | 90mm L/D30 |
| Description 2 | 4 components INOEX, hydraulic screen changer, |
| Extruder 3 Layer ref: | C |
| Screw diam 3 | 60mm L/D30 |
| Description 3 | 4 components INOEX, hydraulic screen changer, |
| Head description | IBC with auto diameter control via 3 ultra sound sensors, KARAT air ring with automatic thickness profile control, |
| Die diam (mm) | 315 |
| Thickness controll system | Kundig thickness gauge and Karat automatic air ring for thickness profile control |
| Bubble cage | motorised and with silicon rollers for mark free |
| Take off unit | rotating |
| Corona treatment | Vetaphone. 2x double side treaters: 2xCP3 6kw - 1x CP1C 1kw |
| Web guide | BST with automatic entering of sensors |
| Rewinder Type | Double back to back |
| Rewinder description | model Filmatic |
| Note | Automatic width control |
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