Description Overview Sterling single screw extruder Year: mid 1980's Screw size: 6 in L/d ratio: 24:1 Vented Chalk filled Running on polypropylene 300 hp ac motor and drive Included Equipment Soft starter Accurate feeder for 6 in Nash mhp vacuum pump and tank Screen changer 53 hole strand die Water table Berlin air knife Control panel for 6 in Cumberland pelletizer, 14 in 24 knives 20 hp ac motor Witte classifier, 47 in wide x 60 in long Accurate mechatron feeder Controls