3 layers DOLCI NEXTROM Cast film extruder

Cast film extrusion lines are commonly used to extrude plastic films especially for flexible packaging industry. / In a cast film extruder PE, PP or PA granulates (or other polymers) are melted inro an extruder and pushed through a flat extrusion die (T die), extruding a sheet of molten polymer onto a cooled roller (chill roll).

Machine Code CA151
Manufacturer DOLCI
Year 1998
Number of layers 3
Film structure ABC
Film width (mm) 2000
Speed (m/min) 550
Output (Kg/h) 1200 kg/h of LLDPE
Extruder 1 Layer ref: A
Screw diam 90mm
Description 30D including feeding hopper with magnetic grid bimetallic barrel Reiloy 121/nitrited screw 2 melt pressure/ 1 melt temperature gauges ABB 138Kw DC motor complete with ABB drive; thermoregulation cartridge screenchanger
Extruder 2 Layer ref: B
Screw diam 180mm
Description 30D extruder complete as above with ABB 3641 W motor and ABB dribe
Extruder 3 Layer ref: C
Screw diam 120mm
Description ABB 213 KW ; DC motor and ABB drive connection pieces to the head . Thermoregulation for screenchanger,
Head description Cloeren flat die with lips opening automatic adjustement. 3 ways feed block
Chill roll unit 2 water cooled rollers- first group 1000mm diam with brake- second roller 350mm diam ABB brushless motorization with dedicated special drive and control panel.1tank and pumps group for chill roll watr cooling
Web guide 1 edge recovering system
Rewinder description BVA/2000 automatic winder with surface, gap. center driver winding system complete with take off group, load cellls for film tensioning, winding pressure adjustement device,
Additional information 1 fumes suction hood complete with electric fan Dual chamber vacuum box ABB brushless moorization 2 spare shafts store- transversal cutting device-trimming cutting device with 5 knives holder SIemens series S7 control cabin et PLC controlled Automatic shafts handling robot Optional: 1 gravimetric dosing system for 3 extruders

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