Mavi Deniz developed the rototiller and is still used today in submerged root removal / de-rooting operations. The rototiller head is equipped with L-shaped blades fixed to a hydraulically driven rotating shaft.

The blades are very similar to those used on a conventional garden rototiller.

The head is interchangeable attachment and is raised and lowered by the boom on the dredger. It is used primarily in deep water between 2 and 4.5 meters.