1) The structure is relatively simple and the cost is low

2) Reliable work, easy maintenance and management.

3) Compact size, small cross-section size and small footprint. It is easy to get in and out of hatches and carriages during unloading operations at the port.

4) Sealed delivery can be achieved, which is conducive to the delivery of easily-flammable, hot and odorous materials, which can reduce environmental pollution and improve the working conditions of port workers.

5) Easy loading and unloading. The horizontal screw conveyor can be loaded and unloaded at any point on its conveying line; the vertical screw conveyor can be equipped with a relative screw type picking device and can have excellent reclaiming performance.

6) It can transport backwards, and it can also make a conveyor convey material in two directions at the same time, that is, to center or away from the center.

7) The unit consumes more energy.

8) The materials are easy to be crushed and worn in the process of transportation, and the spiral blades and the trough are also worn more seriously.