Description Overview Bruckner BOPP extrusion line, width 8200 mm, three layers, built 1992 Completed with an Atlas slitter/rewinder, model CW, width 8200 mm Further auxiliaries, including spare parts Nameplate capacity 20,000 t/y Line was producing 20 to 40 microns; line can produce down to 10 to 12 microns Raw Materials Section 4 silos 250 m³ aluminium 2 silos 100 m³ aluminium 2 silos 50 m³ aluminium Pneumatic transport system; computerized dosing system, hoppers and scales for the three extruders Extrusion Section Main extruders: 2 Mitsubishi cascade extruders Ø 300 mm and 250 mm Co-extruders: 2 Bandera extruders Ø 100 mm, equipped with melt pipes Die: Simplast, width 1,140 mm, gap 2 - 3.75 mm, 40 push/pull bolts Chill roll: Ø 3 m, 1,900,000 kJ/h cooling capacity Water bath: 1,500,000 kJ/h capacity Mdo (Machine Direction Orientation) Section Preheating infrared 130 kW Preheating: 16 chromium plated rolls Ø 614 mm Stretching: 6 chromium plated rolls Ø 180 mm, equipped with rubber nip rolls Ø 150 mm Annealing: 2 chromium plated rolls Ø 614 mm Tdo (Transverse Direction Orientation) Section Total length: 66 meter Preheating: 5 sections Stretching: 5 sections Annealing: 5 sections Neutral: 1 section Cooling: 2 sections Inlet 850 – 1,050 mm width Outlet 7,600 – 8,600 mm width Prs (Pull Roll Stand) Section Edge trim cutters Esseci flame treater, burner, chromium plate roll, rubber nip roll Corona treater 1: 3 discharge bars, silicon roll, rubber nip roll Corona treater 2: 2 discharge bars, edge bar, silicon roll, runner nip roll Measurex/Honeywell Gauge Control Systems 8.5 m scanner for film 1.2 m scanner for cast sheet Main thickness control unit connected to the bolt of the extrusion die for lip adjustment Winder 2 turrets Kampf winder Automatic cut / turret / mill-roll change Winding cores: 108 steel winding cores Ø 500 mm Control Unit The line is equipped with a fully integrated control system supplied by Bruckner Mill Roll Stand (Semi-Finished Products Warehouse) 150 total positions, of which 50 in heated closed room 1 pick-up for loading / unloading winder and slitter 1 manual emergency pick-up for loading/unloading winder and slitter and maintenance 1 shuttle to move mill rolls in and out of the warehouse 1 main crane for moving mill rolls / empty cores Recycling Herbold grinder for scrap recovery 4 fluff silos 1 Erema machine for regranulation, approx. 700 kg/h Slitter Atlas CW machine, built 1992, major upgrade 2010 Inlet mill-rolls max Ø 1.2 m, width 8.2 m 16 rewinding stations, widths from 400 mm to 2450 mm, max Ø 1,000 mm Automatic knives and re-winding arms positioning Packing Semi-automatic Ballotti line for conditioning of rolls and pallets, built 2000 Conveyors Scaling Strapping Stretching Utilities 3 compressors 3 bars for compressed air circuit for raw materials handling 2 compressors 6 bars for compressed air 2 chillers for chilled water production 2 water cooling towers 1 boiler for thermal oil production 3 transformers 15 kV to 380 V Additional Equipment Spare parts for all of the above Technical consumables IT equipment for controlling the manufacturing equipment and data traffic, such as servers, switches and cabling Laboratory equipment for quality control purposes
