Brückner 5 layers BOPP / BOPET tenderframe plant

Number of layers 5
Overhaul/renovation 1998 new winder and
chain track + chain. 2010 upgrade to 5 layers,
2 x new extruders + ned extrusion die
Film structure ABCDE
Material BOPP
Output 345 m(min
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 Thematic,
year 2010, type single screw, output 560 kg/h,
screw dial 120mm L/D 30, hydraulic screen changer,
metal pump, gravimetric blender

Extruder 3 Description C- Mitsubishi,
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 Thematic,
year 2010, type single screw, output 560 kg/h,
screw dial 120mm L/D 30, hydraulic screen changer,
metal pump, gravimetric blender

Extruder 5 Description E- Make Davis Standard,
type single screw, output 300 kg/h,
hydraulic screen changer, gravimetric blender

Head description Make EDI, 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
Corona treatment Make MERO, 2 side treatment
Rewinder description Type turret, non stop. 80 metal cores/reel stand
Slitter Make Atlas, model CW980AP, width 8400mm,
unwind max dial 1200mm,
rewind type: independent couple of arms center driven,
mar output reel dial 1000mm,
output reel width 413-3300mm,
max weight 2080kg. Approx 12 winder stands.
Winder for edges. max speed 750m/min ,
slitting system: razor blades and
grooved roller counter blade
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.