Brückner, Cellier 4 layers BOPP / BOPET tenderframe plant

Number of layers 4
Overhaul/renovation 1998 Winder and TDO.
2010 Corona treatments.
2010 Extrusion die, 2015 ALPINE line edge and
start up grinder.
Film structure ABCD
Material BOPP
Output 340 m/min , max 3800 kg/h
Width (mm) 8200

Extruder 1 Description A- Make Davis Standard,
type single screw, output 300 kg/h,
hydraulic screen changer, gravimetric blender

Extruder 2 Description B- Make Davis Standard,
type single screw, output 300 kg/h,
hydraulic screen changer, gravimetric blender

Extruder 3 Description C- Davis Standard,
type double cascade extruder, output 3200 kg/h,
screw dial 2x250mm L/D 42,
hydraulic screen changer, gravimetric blender

Extruder 4 Description D- Make Davis Standard,
type single screw, output 300 kg/h,
hydraulic screen changer, gravimetric blender

Head description Make Cloren, year 2010,
automatic thickness profile adjustment via flex lip and
thermal bolts
Die width 1200mm
Thickness controll system ABB: 2 gauges, first after chill roll, second in pull roll area
Chill roll unit Type, chill roller in water bath. Chill roller dial 2200 mm
MDO description 16 preheating rollers, 6 stretching rollers,
2 Annealing rollers. Hot oil heating. Hot oil oven included
TDO description Chain track type: F.O.K. 4.4.4,
Thermal oil heated, 27 m preheating, 15 m stretching,
15m annealing

Note
Extensive set of spare parts available.
80 reel cores over head bridge cranes

Biaxially oriented polypropylene (BOPP) and
Biaxially oriented polyester (BOPET)
are commonly produced in tender-frame lines.
In these lines material is melted through a
flat extrusion die (T-die) and solidified onto a cooled roller.
Material is then stretched in machine direction in
an MDO.
Thereafter material is stretched in
transversal direction in a TDO.
These processes deliver a molecule orientation in
both axes, this enhances many of their properties,
particularly the mechanical, impact,
barrier and optical properties.