S. F. Engineering Works offers Industrial Sigma Mixer/ Extruder. S. F. Engineering Works is the supplier of process plants and machinery required by the Chemical, Paint, Inks Pharmaceuticals, Minerals, Food and related Industries. The Industrial Sigma Mixer/ Extruder is available in various working capacities ranging from 30 litres to 300 litres with different shell sizes of 16" X 16", 20" X 20", 24" X 24" and 36" X 36". Industrial Sigma Mixer/ Extruder comes with gear box of sizes 4", 6", 8" and 10"