3 layers PRIMPLAST Cast film extrusion line

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).

Machine Code CA152
Manufacturer PRIMPLAST
Year 1999
Number of layers 3
Film structure ABC
Material STRETCH FILM
Film width (mm) 2000
Speed (m/min) 550
Extruder 1 Layer ref: A
Screw diam 120mm
Description 30D . AC motor 400Kw mounted in axis. Screw extractor. 1 cartridge filter .Doteco gravimetric dosing system
Extruder 2 Layer ref: B
Screw diam 120mm
Description 30D . AC motor 200Kw.1 cartridge filter .Doteco gravimetric dosing system
Extruder 3 Layer ref: C
Screw diam 90mm
Description 30D . AC motor 110Kw mounted in axis. 1 cartridge filter.Doteco gravimetric dosing system
Die width (mm) 2480mm . Feedblock Cloeren. Flat die with 7+1 thermoregulating zones with 87 points for flexible lip regulation. Lip flex range 1mm. Fumes suction unit
Chill roll unit max speed 550 m/min
Rewinder max reel diameter (mm) 600mm
Rewinder description Automatic winder mod. AVP 2.000-B .N 04+1 (spare) pneumatic shafts for cardboard cores int. diam. 76 mm with autocentering.Rolls unloading section — Automatic shafts loading/unloading.
Additional information Inline scraps recovery extruder R120mm. Max suction speed 550m/min.AC motor 47 kw mounted in axis.Doteco gravimetric dosing system Set of pick-up manifolds and conveying pipes. Scraps grinder and air scraps separation unit with deadening jacket. Electro-aspirator unit with silencer and deadening box. Centrifugal separator for ground material. Electric fan for ground material conveyance. Deviating shutter for ground material discharge to the bags. 1 Air suction blade mod. PRIMPLAST (Vacuum box) • Plate steel body assembled on extrusion die. e Pipe set for blade/manifold connection. Motorized rear chamber adjustment Smoke collecting manifold with suction control shutter. N 0 2 electro-aspirator and connecting pipes to the manifold. N O 1 Single electroaspirator suitable for the suction on the extreme edge of the chambers. Edge keeping electrostatic device Positioning device with three axis adjustments Independent power supply with adjustment. X rays emission based thickness measurement system (SOTER]SCAN-TECH) Cooling System : Diam. 1.350 mm chill roll, equipped with a special water circulation system that guarantees a uniform surface temperature . Rubber coated roll with pneumatic control that allows the cleaning of the chill roll from extrusion fumes. Take-off complete with chromed/rubber coated roll 2 holders for thickness control unit. 1 a.c. motor reducer for chill roll driving. 1 a.c. motor reducer for take-off. Emergency push button set and accident prevention guards. Oscillating frame:2 aluminium rolls, one of which is treated. Max oscillation amplitude 100 mm on either sides.

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