18 MM Leistritz Twin Screw Extruder Pelletizing Line. Manufacturer: Leistritz. Used Leistritz twin screw pelletizing line, model Micro18-GGL, 18 mm screw s, counter rotating screw s, 40:1 l/d, 500 rpm screw speed, electrically heated, water cooled barrel, 2.3 kw, 210/260 volt, 2950 rpm dc mot Cleveland, OH, USA.