This kind of extrusion food machinery (food extruder)as the main unit of frying snacks processing line which adopting unique extrusion technology and taking potato starch,potato powder, corn starch, corn flour,tapioca,wheat flour as the main raw material to produce grade snacks,such as potato chips, pellets ,cassava chips and other fried extruded snacks food in various flavors. The products also can be adopted to change dies to produce various shapes of snacks food ,such as screw, shell, round tube, square tube, ring, wave, pasta and so on.