Used Bonnot single screw extruder, model 2W/PKR, stainless steel barrel with carbon steel screw and jacket, 2" diameter X 6" long screw, 6:1 L/D, grooved barrel, 6" x 4.5" feed throat with stainless steel chopper bar, driven by 2 hp, 208-230/460 volt motor through gearbox with manual speed control, with stainless steel square and cylindrical tube dies, serial# B3660, built 3/2009.