Extrusion Processing Guide: PE-HD – High-density polyethylene

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 Processing Guide: PE-HD – High-density polyethylene
 Extruder: Single Screw Extruder with vacuum, grooved feeding section
 Screw Design: Barrier Screw, 25-30 L/D
 Compression Ratio: 3:1
 Cylinder Temperatures: : 180-205 C
356-401 F
 Melt Temperature: 180-205 C
356-401 F
 Pre-Drying: No,
3 hours at 105-110 C (221-230 F) for regrind
 Calibration:  
 Miscellaneous: bimodal PE-HD needs motor with 10-15% higher torque and has higher melt pressure/melt temperature
Larger screw diameter : continuously two channels (improved conveying in feeding section)
Note: This is meant as a general guide. Please consult your material and machinery representative. – Back to Overview
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