... 4.High efficiency,saving energy Biofuel material briquetting press This machine is the main equipment to make fuel briquettes by ... sawdust ,bark,branches , rice husk ,peanut shell ,walnut shell ,cotton straw ,corn cob , sugar cane bagasse .etc (The raw material need ... crumbled to requested size and dried to requested moisture.) This machine adopts the principle of screw propelling which makes the wood ...