Reifenhauser 3 layers cast film extrusion line

Number of layers 3
Overhaul/renovation several upgrades and renovations during years, very good maintenance
Material CPP
Film width (mm) 1550

Extruder 1 Layer ref: A
Screw diam 70mm
Description RH 551-1-70-30 diam:70 mm L/D30

Extruder 2 Layer ref: B
Screw diam 120mm
Description RH 1651-1-120-30: diam 120mm L/D30

Extruder 3 Layer ref: C
Screw diam 50mm
Description RH 241-1-50-25: diam 50mm L/D25

Die width (mm) 1900mm
Chill roll unit diam 800mm
Thickness controll system Automatich thickness control
Corona treatment 2 x Mero MR/B 20K-IGBT
Rewinder max reel diameter (mm) 1000

Note
No layer edge refeding extruder feeding screw: 90mm
Line speed max 200 m/min, elecrical limitation 120 m/min
Output max 376kg/h
Thickness gauge Lipke Measuring system 4012 O-I/QM, beta rays kr-85 source

Cast film extrusion lines are commonly used to extrude plastic films especially
for flexible packaging industry.
In a cast film extruder PE, PP or PA granulates (or other polymers)
are melted inro an extruder and pushed through a flat extrusion die (T die),
extruding a sheet of molten polymer onto a cooled roller (chill roll).