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Machine specifications:
Universal or polyolefin extruders with 3 screw zones
Compression ratio: min. 3.5 : 1
L/D ratio: min. 25
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Guideline processing parameters:
Feedzone: 150 ? 170° C (300 ? 340° F)
Compression zone: 185 ? 200° C (365? 390° F)
Metering zone: 185 ? 200° C (365? 390° F)
Extruder head: 185 ? 200° C (365? 390° F)
Die: 185 ? 210° C (365? 410° F)
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Dies:
Simple matrix die is sufficient in most cases
Die land: max. 3 ? 4 mm (0,12-0,16 in.)
Die temperature: 185 ? 200° C (365? 410° F)
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