... 3. high efficiency 4. labor-saving 5. fully-automatic This briquette machine is our 4th generation, based on the Patent technological improvement ... Motor power(kw) :3×1.5kwRaw material: wood branches,sawdust,straw,peanut hull,corncob,boll hull,sunflower hull,coconut shell,etc ... screw to increase speed, supercharger to increase density. sawdust press machine/ briquette making machine/rods machine