The rotation speed of dredger reamer is indeed adjustable, but it is the function of hydraulic reamer. The rotation speed of mechanical reamer can only be constant,

Cutter suction dredger and bucket wheel dredger are the common types of dredger for river dredging. Cutter suction dredger uses reamer to cross cut the mud layer,

When the dredger is used for the first time or the dredger is not used for a long time, it often does not pump water. This phenomenon is common and can be easily solved by customers.

This is the main reason why the dredger must be used to clear the silt in the river! The dredging ship can be designed according to the working environment,