As a custom-made type of TU screw conveyor ES screw conveyor is made of carbon steel material. Its surface is fine processed and powder coated. ES screw conveyor is consist of a tubular tank which has at least one discharging hole and one feeding hole; the flanges on both ends of tubular tank; the screw blades welded on the central tube; joint bushings on both ends of central tube; two end bearings (one of them is connected with driver) which contain self-regulation enclosed unit; hanging bearing whose number is depend on the overall length of screw conveyor. Besides to satisfy users’ demand CAO tubular screw conveyor is equipped with motor and gear box. ES screw conveyor is medium loading type machinery.