EXTRUSION HEAD / TEMPERING ROLLER Extrusion slot width: 1054 mm Heating capacity: 45 kW Heating zones: 7 Material: Steel with internal chrome plating Lip opening: 1.7 / 3.5mm Lip adjustment: automatic by means of 37 electrically heated bolts
TEMPERING ROLLER Hardening roller characteristics: System: Roller immersed in water Film width: 1000 mm Mechanical speed: 2 / 60 m/min Diameter: 2400 mm Table width: 1400 mm Flow rate of project: 2350 Kg/h Temperature range: 30 / 90°C
LONGITUDINAL IRONING System: longitudinal stretching between driven and heated rollers at a controlled temperature Roller table width: 1200 mm Film width: 1000mm Draw ratio: 1 : 1 –10 – 1 Slow section: 2 / 60 m/min. Fast section: 9 / 250 m/min. Roller heating: by means of diathermic oil at 270° C Preheating rollers: n° 18 rollers (n° 9 teflon coated n°9 chromed diameter 614 mm ) Ironing rollers: n° 6 chromed rollers diameter 150 mm Stabilization rollers n° 2 diameter 614 mm
TRANSVERSE DRAWING OVEN Infeed film width: 850 / 1000 mm Max. ironing width: 8500 mm Outgoing film width: 6700 / 7500 mm Mechanical speed: 250m/min. No. of oven zones: 7 Heating: by means of fans and diathermic oil exchangers at 270°C Transport system: by means of clamps pivoted on a sliding chain on runners
TOW BENCH
Characteristics: Infeed film width: max. 7400mm Max speed 250m/min Motorisations: n° 3 DC motors 21 Kw/each Roller table width: 7600 mm Selvedge cutting system Selvedge grinding system by means of a mill with a capacity of 350 Kg/h Flame treatment system (underside of the film) (EsseCi) Corona treatment system (upper side of the film) by means of 2 stations of 40 KW / each (MERO) Thickness reading system using Krypton radioactive source
WINDER Spindle diameter: 450 mm Spindle length: 7800 mm Film width: 7200 Winding speed: 250m/min Film tension: 150 / 700 N Diameter max. coil: 1000mm Winding System: Slot / Contact Winding stations: n° 2 alternating
PRIMARY CUTTER REWINDER 1st LINE Year of construction: 1988 Working width: 7500mm Cylinder width: 7600 mm Max width film: 7200mm Mother reel diameter: 1000 mm ( possible up to 1200 mm ) Daughter reel diameter: 900 Minimum cutting width: 200 mm Maximum cutting width: 2000mm Wrapping stations: n° 14 + 2 for the selvages Processing: polypropylene film thickness 12.5 7 50 microns Max speed 800m/min
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