TLSL120 series spiral conveyor has the advantages of compact structure, convenient operation and maintenance, and if it is matched to the equipment (such as screw oil press) which need to upgrade the material, there will be much improvement at production efficiency and automation, greatly decrease for labor intensity of users. It is suitable for conveying powder, granular and small shape dry material without viscosity, such as rapeseed, soybean, peanut, sunflower seeds, etc.