... 3. high efficiency 4. labor-saving 5. fully-automatic This briquette machine is our 4th generation, based on the Patent technological improvement ... branches,sawdust,straw,peanut hull,corncob,boll hull,sunflower hull,coconut shell,etc.Moisture of raw material: around 2%Size of ... to increase speed, supercharger to increase density. biomass fuel making machine/sawdust briquette machine/rods machine