There are many kinds of dredgers, but the most important one is the dredge pump, which is the key equipment of the dredger and is often called the "heart" of the dredger.

A good mud pump needs to deal with mud with high impurity content, so suction and wide flow plate are very important for them.

When the pump is working, the engaging screw forms a seal chamber in the pump body. With the rotation of the screw, the liquid in the seal chamber moves axially with the seal chamber and is stably and continuously transmitted to the pump outlet. Since the capacity of sealing civilization has never changed in the working pump, there will be no pulsation when the pump delivers liquid.