Brückner 3 layers BOPP / BOPET extrusion machine

Number of layers 3
Film structure ABC
Material BOPP
Output max output 4500 Kg/h, mechanical speed 450 m/min,
production speed 425 m/min
Width (mm) 8300

Extruder 1
Single screw, make Kiefel, model Kirion,
screw diameter 105mm, AC motor 165 KW.
Gravimetric doses, make Sonner 3 components

Extruder 2
Twin screw co-rotating, Make Krauss Maffei,
max output 5400 Kg/h, vacuum chamber Bartti,
melt pump MAAG, Cartridge type screen, AC motors.
Main material hopper 3160 L

Extruder 3
Single screw, make Kiefel, model Kirion,
screw diameter 105mm, AC motor 165 KW.
Gravimetric doses, make Sonner 3 components

Head description Make Bruckner/Simplas.
Automatic thickness profile control
Die width 1200
Thickness controll system Automatic thickness profile control
Chill roll unit Chill roll unit in water bath
MDO description 18x pre-heating rollers; 6 stretching rollers,
4 annealing rollers Each MDO motor driven with
independent torque motor in direct drive. Oil heated MDO
TDO description Chaintype FOK 4.4.6, Oil heated, 20 sections
Corona treatment 2 x Mero MR/B50K-IGBT
Pull roll unit Thicknes gauche NDC with IR gauge
Rewinder width 8200
Rewinder description Turret automatic winder
Slitter Primary slitter included
Note Grinder Alpine 50-80PA and edge re-feediong system
Oil Oven

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.