Description Overview Leistritz twin screw counter-rotational laboratory extruder Model LSM-30.34 Specifications Currently set up for 30:1 L/D Can be set up for 12.35, 12.88, 19.41, 22.94, 26.47, 30, and 33.53:1 L/D 34 mm (1.181 inches) screws with a center distance of 30 mm and flight depth of 4 mm Setup with 7 heating zones per side 7 air cool barrel fans Barrel can be vented or non-vented (adapters included)