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Bruckner, 1998, BOPP Film Line, 3 Layers, 6600mm Web Width

Bruckner, 1998, BOPP Film Line, 3 Layers, 6600mm Web Width

Description

  1. Overview

    1. Bruckner three-layer BOPP film line, year 1998

    2. Film structure ABC

    3. Material BOPP

    4. Web width 6,600 mm (259.8 in)

  2. Output and Speed

    1. Maximum speed 280 m/min (919 ft/min)

    2. Maximum output 2,000 kg/h (4,410 lb/h), depending on the material

    3. As an example, on 20 micron film the line has been running at 1,800 kg/h (3,970 lb/h) at 255 m/min (837 ft/min)

  3. Extruders

    1. Extruder 1, A coex: single screw, 90 mm (3.5 in) diameter, 3-component dosing system, output 125 kg/h (276 lb/h), DC motor

    2. Extruder 2, B main: cascade extruder, melt extruder 200 mm (7.9 in) diameter plus metering extruder 250 mm (9.8 in) diameter, 4-component dosing system, output 2,000 kg/h (4,410 lb/h), DC motor

    3. Extruder 3, C coex: single screw, 90 mm (3.5 in) diameter, 3-component dosing system, output 125 kg/h (276 lb/h), DC motor

  4. Die and Thickness Control

    1. Simplas die head, die width 1,025 mm (40.4 in)

    2. Automatic thickness profile adjustment by 32 thermal bolts

    3. Automatic thickness control system, beta-ray gauge

  5. Chill Roll Unit

    1. Chill roll in a water bath

    2. Gloss surface finish

  6. Machine Direction Orienter

    1. 12 preheating rollers (6 chrome-plated, 6 with a Teflon surface), 614 mm (24.2 in) diameter

    2. 6 stretching rollers

    3. 2 annealing rollers

    4. Rollers heated by thermal oil, thermal oil heater included

    5. Drive and transmission by distribution gearbox, cardan shaft and belts

  7. Transverse Direction Orienter

    1. Preheating section 15 m (49.2 ft) long

    2. Stretching section 6 m (19.7 ft) long

    3. Annealing and heat-set section 18 m (59.1 ft) long

    4. Heated by thermal oil

  8. Treatment and Pull Roll Unit

    1. 2 MERO corona treaters

    2. Pull roll unit with thickness gauge, 2 corona treatment stations and edge trim

    3. In-line grinder, Hosokawa Alpine

  9. Rewinder and Slitter

    1. Turret rewinder, 6,600 mm (259.8 in) net width

    2. Atlas slitter rewinder with driven unwinder

    3. Rewinder with independent center-driven winding stations, 11 pairs of winding arms, driven positioning of the winding stations

    4. Maximum rewind diameter 1,000 mm (39.4 in)

  10. Included Equipment

    1. Water chiller

    2. Thermal oil heater

    3. Erema recycling machine for start-ups and web breaks

    4. Siemens S7 main PLC