Brückner 3 layers BOPP / BOPET extrusion machine

Number of layers 3
Film structure ABC
Material BOPP and Syntethic Paper
Output max output 5000 kg/h. Output on 20my 4000kg/h.
Max speed 460 m/min
Width (mm) 8200

Extruder 1 Description
Main extruder layer C:
- type twin co-rotating screw, model ZE155/32D
- Barrel diam 169mm L/D32
- Speed nominal 300 rpm
- Output 5700 kg/h
- Gravimetric blender 4 components, mixing hopper
- Drive AC motor 1500 kW
- 6 heating zones, 289 kW, Water cooled
- Melt pump 179 kW ac motor
- Filter: Long life candle type with 48 candles

Extruder 2 Description
Coex 1 - type single screw, Kiefel Kirio 120/33D
- output 380 kg/h
- Screw diameter 120mm L/D33
- 5 zones heating 79 kW
- AC motor 179kW
- Filter: Long life candle type with 4 candles , Gravimetric blender 4 components,
mixing hopper

Extruder 3 Description Coex 2
- type single screw, Kiefel Kirio 105/33D
- output 290 kg/h
- Screw diameter 105mm L/D33
- 5 zones heating 70 kW
- AC motor 135kW
- Filter: double screen changer , Gravimetric blender 4 components,
mixing hopper

Head description T Extrusion die with automatic thickness control via quick acting
Push/pull boltscontinuous closed loop temperature control of bolt heaters by
advanced solid state relais,
Die width 1140mm, gap 1,7-3,5mm
Thickness controll system Automatic thickness profile control,
Thickness gauge via beta rays, source: Promethium 147

Chill roll unit
Chill roll in water bath
-Chill roller dial 2800mm, working width 1200mm, face width 1400mm
- AC direct drive of rolls
- cooling 625 kW throughput chill roll 320 m3/h water
- cooling 1.000 kW throughput water bath 200 m3/h water
- Nip roller torque controlled
- Air knife with edge pipes
- take off and guide rolls
- Wired removal from roller and film
- Driven nip roll

MDO description
- Stretching ratio: 1 : 1 - 1 : 7
- Direct drive with independent motors in electronic line shaft,
Multipole synchronous permanent magnet torque motor
- 20 pre heating roll, each with independent motor drive
- 6 stretching roll, each with independent motor drive
- 4 annealing roll, each with independent motor drive
- Pre heating rollers diam 614mm, 4 chrome plated, 6 teflon plated
- Stretching rollers 150mm diameter, Chrome plated,
Nip rollers 150mm diameter Rubber covered
- Annealing rollers 614mm diam 4 Chrome plated , 2 Rubber covered
- Web threading system
- Film Breacker detector

TDO description
Stretching ratio: 1:8-1:10 Sections:
- Pre heating: 27m in 6 sections of 4,5m each
- Stretching: 15m in5 sections of 3m each
- Annealing 18m in 6 sections of 3m each
- Neutral section
- Cooling section7,5m in 5 sections of 1,5m each
- Edge cooling
- Exit 1,5m Chain and track system FOK 4.4.6
- Type sliding chain with lubrification
- Pitch 60mm
- Clip width 114mm
- Magnetic opening and closing system Edge Tracker7 Inlet Drive by
AC regenerative motors Heat source: Therma oil

Corona treatment
1 Corona for Bottom Treatment, ,
1 x Corona for Top side treatment modular designed solid state generators in
stand-alone units with digital IGBT
Frequency : approx. 25 kHz
Process roll: steel core with dielectric rubber covering

Rewinder description
- Face width width 8600mm,
- Working width: 6.500 - 8.200 mm
- Max reel diam 1450mm with core 655 and 1350mm with core 550mm
- Turret type
- Contact roll with LI-Wind system

Note Edge trim and re-feeding system: - automatic pulling, cutting and conveying,
independent from line speed and thickness of film
- Grinder capacity 1200kg(h - pneumatic flake conveying system

Feeding: Granulate silos 2 x 80 m2, degranulate silos 1x 80 m3, Conveying system,