1 layers KIEFEL blown film extruder

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.

Machine Code	EX679
Manufacturer	KIEFEL
Year	1995
Number of layers	1
Overhaul/renovation	several mechanical and control renovations in 2006 Plastcontrol, 2016-2017 Screw, barrel and feeding zone, AC extruder motor, AC motors of winder and take up unit, K-Design gauge control
Material	LDPE and HDPE (different die inserts)
Film Width (mm)	1800
Output (Kg/h)	200-230 Kg/h with low neck configuration (LD) and 180 with high neck configuration (HD)
Screw diam	80
Description	l/d 27, AC motor Baumuller year 2017. Screw new in 2017 and cylinder renovated in 2017. AC motor and inverter (225 KW) year 2017, gravimetri coser 5 components
Head description	diameter control K design 2017 3 ultrasonic sensors
Die diam (mm)	300mm die with "low neck" configuration for LDPE, 225mm die with "high neck configuration (for HDPE)
Thickness controll system	Plast control Magic flow Procon, capacitive gauge and automatic profile regulation via air ring
Bubble cage	year 2016 for layflats 430-1950mm Gammatec brand
Panel for gussets	yes
Take off unit	rotating, new motors and inverters in 2016
Corona treatment	Ferrarini Benelli double for 4 film side treatments
Web guide	E+L
Rewinder max reel diameter	900mm
Rewinder description	Make Dolci new motors and inverters in 2016, 9 shafts 76mm, 8 shafts 152mm, in cline slitting with 8 blades 2018
Additional information	speed, mechanical up to 180 m/min