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Macchi COEX Blown film extrusion line

Ref : 2138870-6-CP
Condition : Used
Manufacturer : Macchi
Model : COEX
Short Description : Blown film extrusion line
Year(s) : 2002
Quantity : 1
Location : Seller or machines location:
EUROPE (Western and Northern)
Last check : 01 May. 2020

Number of layers 3
Film structure ABC
Material LDPE, LLDPE,MDPE
Film Width (mm) 1700
Output (Kg/h) 300
Extruder 1 Layer ref: A
Screw diam 60

Description :
L/D30, bimetallic barrel, nitrurated screw, AC motor, hydraulic screen changer, Model Plastex.Plastex.
Gravimetric Hopper "Gravicontrol" and Piovan inline blender

Extruder 2 Layer ref: B
Screw diam 100
Description L/D30, bimetallic barrel, nitrurated screw, AC motor, hydraulic screen changer, Model Plastex. Gravimetric Hopper "Gravicontrol" and Piovan inline blender

Extruder 3 Layer ref: C
Screw diam 60
Description L/D30, bimetallic barrel, nitrurated screw, AC motor, hydraulic screen changer Model Plastex,Plastex. Gravimetric Hopper "Gravicontrol" and Piovan inline blender
Head description 3 layers extrusion head COEF FLEX TE401, with IBC JET6, Double flow cooling ring ASR3,
Die diam (mm) 450mm 2.2mm gap and 350mm 1.4mm and 2.2mm gaps
Thickness controll system Automatic thisckness controlK design with Kundig gauge
Take off unit Oscillating, model ST199 Roto-1800, couple of add cylinders for film cooling S type
Corona treatment Martignoni
Web guide E+L
Rewinder max reel diameter 1200mm
Rewinder description Model BO PLUS/D 1800, surface and gap winding, axial direct drive on shaft, film winding possible both as direct and reverse, Easy load system for shafts loading and auto reel change
Additional information Total height of line is 12,7 m

In a blown film extruder PE granulates (or other polymer) are melted in an extruder and pushed through a circular die extruding a tube of molten polymer.
Tube is then inflated to multiples of its initial diameter and cooled to form a thin film.
Bobble is later collapsed and re-winded.

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