Company founded 1975 US-based machinery business experienced in worldwide sales.

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Davis Standard, Extrusion Lamination Line, 1550mm Working Width, 3 Coating Units, 600 m/min

Davis Standard, Extrusion Lamination Line, 1550mm Working Width, 3 Coating Units, 600 m/min

Description

  1. Overview
    1. Manufacturer: Davis Standard Beloit Bobst
    2. Width: 1550 mm
    3. Overhaul/renovation: Several in 2008-2015 (see ad info section)
    4. Status: Dismantled
  2. Coating/Lamination Units
    1. Three coating/lamination units total
    2. Unit 1: Davis Standard extrusion lamination unit, 3-roller system, one extruder, screw diameter 4.5, motor 155 kW, manual die with external deckling, position xyz, Maguire blenders, chill roll diameter 800 mm, chill roller width 1700 mm, maximum lamination width 1550 mm
    3. An additional Cloren automatic extrusion die is available as a spare with the machine; this could be retrofitted on this extrusion coating unit (retrofit would require some additional parts to be quoted)
    4. Unit 2: Rotogravure coating unit used for primer
    5. Unit 3: Davis Standard extrusion coating unit, year 1998, 2 extruders co-extrusion
    6. First extruder: screw 4.5 in diameter, L/D 28, motor 225 kW, up to 500 kg/h melting capacity, 5 heating zones
    7. Second extruder: screw 6 in diameter, L/D 28, motor 350 kW, up to 1100 kg/h melting capacity, 5 heating zones
    8. Die width 1850 mm, year 2014, die make Cloren with automatic thickness profile control, internal deckling with driven adjustment
    9. Position xyz
    10. Maguire blenders year 2006
    11. Chill roll diameter 800 mm
    12. Chill roller width 1730 mm
    13. 3-roller system
    14. Double nip system with possibility to coat on both sides of chill roller depending on product requirements
    15. Feedblock cassettes for structures: ABA, AAB, BAA, AAA, BBB
  3. Unwinders
    1. Primary unwinder: Turret unwind, max diameter 1500 mm, make Beloit, upgraded and renovated
    2. Secondary unwinder: Turret unwind, max diameter 1500 mm, make Jilha, year 1987, upgraded and renovated
  4. Rewinder
    1. Turret and shaftless rewind, maximum diameter 1300 mm, maximum core width 1700 mm, make Bobst-Rotomec, year 2015
    2. Can wind both contact or gap winding
    3. Speed 600 m/min, flying splice 450 m/min
  5. Product Structure/Materials
    1. Example materials run on the line: substrates paper or board (on primary unwind) and aluminium (on secondary unwind)
    2. Example structures: primer/aluminium/mono ex/paper; paper/mono ex/aluminium/coex; primer/aluminium/mono ex/film
    3. Example resins extruded: PE, EEA, Surlyn 1652, PP
  6. Upgrades and Overhauls
    1. Winder new in year 2015
    2. Controls upgraded year 2008, currently machine is PLC Siemens S7, drives renovated with ABB inverters, Siemens Sinamics inverters and Eurotherm digital DC drives, Siemens HMI
    3. Mechanical overhauls
    4. Cloren automatic extrusion die year 2014 (recently cleaned)
    5. Spare Cloren die year 2008
    6. Thickness control Thermofischer year 2014 with 2 reading heads
    7. Dosing and material feeding system year 2006
  7. Film Thickness Control System
    1. Make: Thermofischer
    2. Year: 2014
    3. Double gauge (on 1 frame) beta ray system and infrared