3 layers TECOM COEX 65-65-65 Blown film extrusion line

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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Machine Code
EX772
Manufacturer
TECOM
Modello
COEX 65-65-65
Year
2011
Number of layers
3
Film structure
A-B-C
Material
LDPE, LLDPE
Film Width
2100
Screw diam 1
65 L/D 30
Description 1
Extruder AC Motor 75 KW ---Gravimetric dosing unit 2 comp -
Screw diam 2
65 L/D 30
Description 2
Extruder AC Motor 75 KW ---Gravimetric dosing unit 3 comp -
Screw diam 3
65
Description 3
Extruder AC Motor 75 KW ---Gravimetric dosing unit 2 comp -
Head description
Coex die head TSFK with IBC -Cooling ring KARAT 2
Die diam (mm)
350 mm gap 1,2
Thickness controll system
K Design -Vario Cool 350-45 -Cooling ring Karat -Thickness measuring device Kundig K 300
Bubble cage
Basket LC 180
Panel for gussets
Yes motorized panels
Take off unit
Oscillating RTO2 cylinder width 2100 mm
Web guide
yes type EL DR 3131
Rewinder Type
Double back to back
Rewinder max reel diameter
1000
Rewinder description
Automatic rewinder 2 station width 2100 automatic roll change , edge slit unit , 3 bow rollers , double antistatic bar
Machine Code EX772
Manufacturer TECOM
Modello COEX 65-65-65
Year 2011
Number of layers 3
Film structure A-B-C
Material LDPE, LLDPE
Film Width 2100
Screw diam 1 65 L/D 30
Description 1 Extruder AC Motor 75 KW ---Gravimetric dosing unit 2 comp -
Screw diam 2 65 L/D 30
Description 2 Extruder AC Motor 75 KW ---Gravimetric dosing unit 3 comp -
Screw diam 3 65
Description 3 Extruder AC Motor 75 KW ---Gravimetric dosing unit 2 comp -
Head description Coex die head TSFK with IBC -Cooling ring KARAT 2
Die diam (mm) 350 mm gap 1,2
Thickness controll system K Design -Vario Cool 350-45 -Cooling ring Karat -Thickness measuring device Kundig K 300
Bubble cage Basket LC 180
Panel for gussets Yes motorized panels
Take off unit Oscillating RTO2 cylinder width 2100 mm
Web guide yes type EL DR 3131
Rewinder Type Double back to back
Rewinder max reel diameter 1000
Rewinder description Automatic rewinder 2 station width 2100 automatic roll change , edge slit unit , 3 bow rollers , double antistatic bar
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