GTO ROV Dredge

The GTO ROV Dredge is designed for subsea excavation and disposal of sediment and gravel.

The GTO ROV Dredge is easily mounted to the ROV and requires no ship deck space and sea fastening.

The GTO ROV Dredge requires no specialist operator or additional cables between ship and seafloor.

The GTO ROV Dredge can be equipped with water jetting nozzles on the suction head in order to disintegrate hard and plastic materials (clay).

The GTO ROV Dredge is packed and preserved for regular air traffic, minimizing lead time to any offshore mobilization world wide.

Technical Specifications

Dredger capacities



Description 4" 6" 6" XL 10"
Removal capacity (t/hr)* 10-15 15-25 20-50 15-25
Exhaust throw distance (m) Customized Customized Customized Customized
Suction hose ID 100 mm
4"		 150 mm
6"		 150 mm
6"		 250 mm
10"
Max stone size (mm) 90 mm
3 1/2"		 135 mm
5 1/2"		 135 mm
5 1/2"		 230 mm
9"
Water jet on nozzle No Yes Yes Yes
Over pressure on jet (bar) NA 5 bar
74 psi		 5 bar
74 psi		 5 bar
74 psi
Suction hose length (m) Customized Customized Customized Customized
Manning (no of personnel) At request At request At request At request





Required hydraulic supply



4" ROV Dredge 35 lpm @
9.3 gpm		 200 bar
2900 psi

6" ROV Dredge 50 lpm @
13.2 gpm		 200 bar
2900 psi

6" ROV Dredge XL 100 lpm @
26.4 gpm		 200 bar
2900 psi

10" ROV Dredge 100 lpm @
26.4 gpm		 200 bar
2900 psi

* - Under ideal conditions. Depends on operation and type of sediment

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