PE-HD - High-density polyethylene

Processing Guide: PE-HD - High-density polyethylene
Extruder: Single Screw Extruder with vacuum, grooved feeding section
Screw Design: Barrier Screw, 25-30 L/DTwo mixing sections:
dispersive-mixing spiral-shear element, rhomboid distributive-mixing section
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.