Precision Dredging

Turnkey solutions in precise, mobile, HR dredging ROV services


Dredging is an essential part of economy, allowing waterways and relevant infrastructure to operate at optimal capacity in favour of global distribution of goods.

Dredging has been doing well for decades and will continue to do so for decades to come, with new technologies finetuning more and more issues related to the activity.

However, there is space to improve.


Accuracy in dealing with last mile, hard to reach areas.


LEE* maintenance dredging costs and efficiency. Costs of rework in maintenance dredge.


Accuracy in dealing with last mile, hard to reach areas.


Environmental sensitivity of certain areas/projects. Emissions related to conventional dredging systems.


Toolbot offers a solution for the last mile dredging operations where spots are hard to reach, where underneath infrastructures have to be maintained or when conventional methods are oversized to actuate with precision. We make possible recurrent maintenance dredging in ports and marinas even in water dams due to an easy mobilization by road truck using an underwater dredger vehicle.

Remotely Operated

Controlled form the surface and equipped with tracks, an auger head and a submersible pump .

Small Size

Easily access to hard to reach places that need attention but are hard to clear with accuracy.

Easy to Operate

Teleoperation done from a mobile control room, by one operator. Easy to plan and correct course.

Smart sensors

Sensor payload monitors the position and performance of the vehicle.

High Precision

Accuracy in dealing with last mile, hard to reach areas.

Cost Effective

Less manpower and fuel per cubic meter dredged.


Uses standard containers. Easy transportation and mobilization by truck, barge or vessel according to situation.

Environmentally Friendly

Less sediment plumes in dredging activity and less emissions generated in running it.

The eCorydora project was a Pluriregional INNTERCONECTA 2015 that seeked to develop an Integral Sustainable Dredging System by rethinking the concept of the usual dredging operations, developing new equipment to replace the existing ones, optimizing the set of operations that are part of a project of dredging, minimizing costs, operating times, and introducing a new concept of sustainable dredging, through the use of independent equipment for dredging, material transport and dumping. The consortium is formed by the galician companies Nodosa shipyard, Nodosafer and Hercules Control together with SSM. The project included the protection through patents of the developments made. With a duration of 3 years, it had a total budget of 3,549,451 euros.

The SME Instrument Phase I, EU-funded Toolbot project proposes a solution ideal for dredging activities in difficult to reach areas like ports, marinas and dams. Their high accuracy Dredging ROV prototype developed through the e-Corydora project, is currently in a TRL 7 facing the demonstration stage of the technology.