Extrusion Processing Guide: PA 66 – Polyamide 66

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 Processing Guide: PA 66 – Polyamide 66
 Extruder: Single Screw Extruder
Without vacuum, plain feeding section
 Screw Design: Barrier Screw or Polyolefin Screw with equal feed ,transition and metering section, 25-30 L/D
 Compression Ratio: 3-4:1
 Cylinder Temperatures: 260-290 C
500-554 F
 Melt Temperature: 280-300 C
536-572 F
 Pre-Drying: 3 hours at 80 C (176 F) (very important)
 Calibration:  
 Miscellaneous: process above 250 oC (482 F) to avoid freeze-off
if bubbles come then temperature too high
increased output/reduced wear by preheating of material 75 C (167 F) or by heating of feeding section at 160 C (320 F)
Note: This is meant as a general guide. Please consult your material and machinery representative.

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