... The feature of air drying machine is heating directly, drying quickly. The feature of air drying machine is heating directly, drying quickly. The scope of ... material in the air, the drying time is quite short3. The structure of air drying machine is simple, easy to ... 60 percent.The applicable scope of air drying machineCorn straw, sawdust dryer soybean straw, cotton stalk, wheat straw, sorghum straw, ...