This is the system that discharges the dredged soil by pushing up to discharging pipe with an internal flap of grab bucket with hydraulic cylinder.

Reduce turbidity

Sealed type can reduce turbidity during operation, keeping the influence to marine environment to minimum. Since it discharges the grabbed soil by pushing up to discharging pipe with the internal flap, it does not need to move the grab bucket above the sea and reduces turbidity to minimum.

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High work efficiency

Since it is not necessary to move the grab bucket above the sea any more, it enables high work efficiency, shortening the work time drastically. Shortened time that burdens marine environment and fuel consumption cut from high work efficiency lead to reduction of greenhouse gases emission.

Low noise construction

No noise during hoisting the grab contributes to reduce the influence to surrounding living environment.

Reduce a spill stream caused by dredging

Grab dredging causes less spill stream than pump dredging, resulting in less water treatment cost. As there is no suction system, no living creature is sucked in.

Automatic flat bed dredging function

Boom automatic flat bed dredging control panel enables to dredge seabed flat in minimum excess width.

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