Macchi blown film extrusion line

E16003

Machine	Macchi blown film extrusion line
Reference number	E16003
Machine manufacturer	Macchi
Type of extruder	Blown
Year	2002
Number of layers	3
Diameter die	400
Lip opening	2,2 mm
Diameter screw(s)	65 - 80 - 65
L/D ratio screw(s)	30D - 30D - 30D
Material & Min – Max thickness	LDPE, LLDPE, BLENDS HDPE, MDPE, mLLDPE 20 – 200 micron
Max. film width	2200 mm
Max. output	450 kg/hour
Rewind type	Back to back
Max. rewind reel diameter	850
Dosing unit	Yes, Doteco
Thickness measurement	Yes, Kundig
Edge guide(s)	Yes, E&L (2015)
Corona treater	Yes, Ferrari & Benelli
Inline slitting	Yes
Tower construction included	Yes
Manuals available	Yes
Machine can be seen in production?	Yes

Subject to unsold. Although believed to be correct, the machine specifications and lists supplied are based solely upon those provided by the original owners.

Blown Film Extrusion
Blown film extrusion is the most common technology to produce plastic film. Blown film extrusion is typically carried out upwards vertically.
Film is made out of polymer material. These polymeres are generally in the form of granulate. This material is melted and then forced or extruded through a die. Air is blwon thourgh a hole in the center of the die. This pressure causes a bubble. This bubble is a thin layer of film. The film is pulled upwards from the die to cool down and winded on the a roll.
Blown film extrusion exists in various layers, the more layers the thicker the film. The process with more layers is called coextrusion.