Brückner 5 layers BOPP / BOPET extrusion machine

Number of layers 5
Film structure ABCDE
Material BOPP Thickness 10-70 my
Output 2500 Kg/h. 350m/min
Width (mm) 6600

Extruder 1 Description A - SINGLE SCREW , diam 90mm,
4 components dosing system, output 180kg/h, AC motor

Extruder 2 Description B - SINGLE SCREW, diam 120mm,
3 components dosing system, output 400kg/h, AC motor

Extruder 3 Description C - TWIN SCREW diam 2x 139mm,
6 components dosing system, output 2800 kg/h,

Extruder 4 Description D - SINGLE SCREW 120mm,
3 components dosing system, output 400kg/h, AC motor

Extruder 5 Description E - SINGLE SCREW 90mm,
4 components dosing system, output 180kg/h, AC motor

Head description Make Simplas. Automatic thickness profile adjustment via
32 thermal bolts
Die width 1025mm
Thickness controll system Automatic thickness control system. Gauge bet rays
Chill roll unit Chill roll in water bath. Gloss surface finish.

MDO description
- 14 x pre-heating rollers (6 chrome plated surface, 8 teflon surface).
Diam of preheating rollers 614mm
- 6 x stretching rollers
- 2x Annealing rollers Rollers heated by thermal oil ( thermal oil heater included)
Drive/transmission: Distribution gearbox, cordon shaft and belts
TDO description - Pre heating section 15m length - Stretching section 12m length - Annealing section 12m length - Heat set section 5,2m length Heating via thermal oil
Corona treatment 2 x MERO treaters
Pull roll unit Thickness gauge, 2 x corona treatments, edge trim, In lince grinder make Hosokawa Alpine
Rewinder width 6600mm net
Rewinder description Turret type
Slitter Included
Note Main extruder twin screw 4 single screw extruder

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.