Description Overview Werner and Pfleiderer twin screw extruder Model: ZSK53 Year: 1988 Co-rotating twin screws Specifications 53 mm twin screws 40:1 L/D ratio Electrically heated Water cooled barrel with 7 barrel sections 60 hp DC motor Through gear box with 5:1 ratio Approximately 345 rpm screw speed Included Control panel Spare screw segments