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Double Screw Double Color Film Blowing Machine

A Double Screw Double Color Film Blowing Machine is a specialized industrial plastic processing system that uses two parallel extruders (twin screws) to simultaneously process two different materials or colors of molten plastic. These materials are combined to produce a single, multi-layered tubular film (bubble) through a co-extrusion die, which is then inflated, cooled, and wound into rolls of double-colored or multi-layer plastic film.

Main Technical Parameters 

Model
SJD-45-2
SJD-50-2
SJD-55-2
SJD-60-2
Film Width (mm)
100-600
200-800
300-1000
400-1200
Film Thickness (mm)
(Single side)
(Not specified in table)
(Not specified in table)
(Not specified in table)
(Not specified in table)
Max. Extrusion (kg/h)
30-50
50-80
60-100
70-120
Suitable Materials
LDPE / LLDPE / HDPE / Recycle
LDPE / LLDPE / HDPE / Recycle
LDPE / LLDPE / HDPE / Recycle
LDPE / LLDPE / HDPE / Recycle
Screw Diameter (mm)
A-Ø45, B-Ø45
A-Ø50, B-Ø50
A-Ø55, B-Ø55
A-Ø60, B-Ø60
Screw L/D Ratio
30:1
*(28:1 / 32:1   optional)*
*Material: 42CrMo/ 38CrMoAl*
30:1
*(28:1 / 32:1 optional)*
*Material: 42CrMo / 38CrMoAl*
30:1
*(28:1 / 32:1 optional)*
*Material: 42CrMo / 38CrMoAl*
30:1
*(28:1 / 32:1 optional)*
*Material: 42CrMo / 38CrMoAl*
Driving Motor (kW)
11 + 11
15 + 15
18.5 + 18.5
22 + 22
Roller Width (mm)
700
900
1100
1300
Die Size (mm)
HD-Ø50, LD-Ø100
HD-Ø80, LD-Ø120
HD-Ø120, LD-Ø200
HD-Ø150, LD-Ø220
Machine Size L×W×H (mm)
4500 × 3000 × 4200
4500 × 3000 × 4200
5000 × 3000 × 4800
5800 × 3800 × 5000
NOTE: BECAUSE OF TECHNICAL IMPROVEMENTS, MACHINERY APPERANCE TECHNICAL PRAMETER MAY BE CHANGE WITHOUT NOTICE