Bruckner 3-layer BOPP Film Extrusion Line

Bruckner 3-layer BOPP film extrusion line

• — Year: 1998
• — Product: ABC film structures
• — Working width: 6,600 mm
• — Maximum speed: 280 m/min
• — Maximum output: 2,000 kg/h
• — Example operating performance:
  • — 20 µm film at 1,800 kg/h at 255 m/min
• — Extruders:
  • — Extruder A: coex, single screw, 90 mm diameter, 3-component dosing system, 125 kg/h output, DC motor
  • — Extruder B: main, cascade extruder with 200 mm melt extruder and 250 mm metering extruder, 4-component dosing system, 2,000 kg/h output, DC motor
  • — Extruder C: coex, single screw, 90 mm diameter, 3-component dosing system, 125 kg/h output, DC motor
• — Die head:
  • — Simplas die head
  • — 1,025 mm die width
  • — Automatic thickness profile adjustment via 32 thermal bolts
• — Thickness control: Automatic thickness control system with beta-ray gauge
• — Chill roll unit: Water bath with gloss surface finish
• — MDO:
  • — 12 pre-heating rollers (6 chrome-plated, 6 Teflon-surfaced, 614 mm diameter)
  • — 6 stretching rollers
  • — 2 annealing rollers
  • — Thermal oil heated
  • — Driven by a distribution gearbox with cordon shaft and belts
• — TDO:
  • — 15 m pre-heating section
  • — 6 m stretching section
  • — 18 m annealing/heat-set section
  • — Thermal oil heated
• — Pull roll unit:
  • — Thickness gauge
  • — 2 MERO corona treaters
  • — Edge trim
  • — Hosokawa Alpine in-line grinder
• — Winding:
  • — Turret-type rewinder with 6,600 mm net width
  • — Atlas slitter rewinder with driven unwinder and center-driven independent winding stations
  • — 11 pairs of arms with driven positioning
  • — 1,000 mm maximum rewind diameter
• — Included components:
  • — Water chiller
  • — Thermal oil heater
  • — Erema recycling machine for start-ups and web breaks
• — Control system: Siemens S7 main PLC