Windmoller & Holscher 3 layers Film blowing machine

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

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.