The round pipe auger, also known as the screw conveyor, is a conveying equipment that continuously pushes materials by means of rotating spiral blades. Due to its cylindrical shape and the spiral blades inside resembling a dragon, it is named "auger". It is one of the most common conveying equipment in industries such as grain, feed, chemicals, and building materials.

The circular pipe auger has a simple structure, good sealing performance and flexible layout. It is particularly suitable for short-distance transportation of granular or powdery materials such as wheat, corn, soybeans, and flour.