ALEMO extrusion lines for EPE and EPP foam are designed to extrude foam sheets with direct gas injection. For small production capacity, up to 150kg/h real production, ALEMO offers a single screw extruder, 90mm diameter especially designed for thin film production of EPE foam. The design of screw, barrel, die and rest of the downstream is especially developed to optimize the process for low medium and high densities. Process high reliability is achived by different hardware and software solutions. For high-output PE foam processing a counter-rotating twin screw foam extruder was developed. It allows melting, mixing, and co oling with minimum shear in material. The extruder’s feed-screw is designed to bring the material to the desired temperature with optimal gradual cool down, which is considered essential in foam extrusion for maximum density reduction. All ALEMO's extrusion lines can be upgraded with a high speed fully automatic winder able to wind up rolls with speeds over 170m/min and with perfectly constant tension through the entire length of the roll. An in-line lamination unit is also an important upgrade of foam extrusion line. It can laminate EPE foam with HDPE, LDPE or similar films with speeds over 170m/min. Same automatic winder from 20 mm at 5m/min to 0.5 mm at 170 m/min. A micro perforation system can also be integrated into the In-line lamination or independently. All ALEMO's extrusion lines can produce EPE and EPP without any major hardware or software change. Production can be switched from one product to another when required.

EXTRUSION LINES FOR EPE/EPP

FOAM SHEET PRODUCTION

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Extrusion line EXT 90M EXT 120 EXT 130 EXT 165

Capacity 150 кg/h 400 кg/h 600 кg/h 1000 кg/h

Extruder type Single screw Ø90 mm

Twin-screw Ø120 mm counter rotating

Twin-screw Ø130 mm counter rotating

Twin-screw Ø165 mm counter rotating

Density (EPE)

Thickness (EPE)

15 - 450 кg/m3 15 - 450 кg/m3 15 - 450 кg/m3 15 - 450 кg/m3

0.5 - 6 mm 0.5 – 15 mm 0.5 – 20 mm 2 – 25 mm

Density (EPP)

Thickness (EPP)

23 - 190 кg/m3 23 - 190 кg/m3 23 - 190 кg/m3 23 - 190 кg/m3

1 - 3 mm 1 - 6 mm 1 - 8 mm 1 - 10 mm

Max. widths

1600 mm 1600 mm 2000 mm 2500 mm 3000 mm

1600 mm 2000 mm 2500 mm 3000 mm

1600 mm 2000 mm 2500 mm 3000 mm

Max. production speed

170 m/min 170 m/min 170 m/min 170 m/min

Technical specifications

In-line lamination with HDPE or LDPE film In-line trimming and longitudinal cutting

In-line micro-perforation In-line pre-cutting

at speed over 170 m/min available on all lines 4.0 Foam Production Control System

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