Brückner 3 layers BOPP / BOPET tenderframe plant

Number of layers 3
Film structure ABC
Material BOPP
Output max output of extruders 6800 Kg/h,
max production speed 460 m/min
Width (mm) 8300

Extruder 1
Single screw, make Bruckner,
screw diameter 105mm / L/D33, AC motor 137 KW.
Gravimetric doses 3 components

Extruder 2
Twin screw co-rotating, Make Krauss Maffe mod ZE 155AX320i,
max output 6200 Kg/h, vacuum chamber Bartti,
melt pump MAAG, Cartridge type screen, AC motor.
Main material hopper 3160 L

Extruder 3
Single screw, make Bruckner, screw diameter 105mm / L/D33,
AC motor 137 KW. Gravimetric doses 3 components

Head description Make Bruckner/Simplas.
Automatic thickness profile control via thermo bolts
Die width 1200
Thickness controll system Automatic thickness profile control,
Thicknes gauche NDC with IR gauge
Chill roll unit Chill roll unit in water bath
MDO description 20x 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
Rewinder width 8300
Rewinder description Turret automatic winder
Slitter Atlas primary slitter included, 14 couple of arms,
15 knives. Driven position of knives and arms
Note Grinder and edge re-feeding system Oil boiler

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.