Mining vessels

OTTer®

A compact modular dredger that is easy to maintain and deploy, utilising Royal IHC’s submersible OTTer®-Pump range.

The OTTer® in short

Royal IHC's OTTer® is a range of compact dredgers as platform for deploying the OTTer-Pump. This provides customers with a modular, compact and cost-effective solution to dredge slurry for smaller dredging projects. Examples are ponds, tailings, dams, rivers, canals and small harbors.

Why choose our equipment?

low capital cost layout
compact size
modular and easy to transport and deploy
rugged and robust.

Fit for purpose

Royal IHC's OTTer® is mainly used to dredge medium sand, silt and gravel. It combines the advantages of the IHC OTTer®-Pump unit into a single dredging solution. The design is based on the principles of production maximisation and reliability. Its cost-effective design reduces the need for specialised maintenance personnel.

The OTTer® is a modular deployment system for the range of IHC OTTer®-pumps and comes in two versions. The first type is used for dredging loosely compacted soil. In this vertical deployment configuration, the OTTer®-Pump is fitted with a sand production head and jetting water nozzles and is suspended from an A-frame and lowered under gravity to the dredge surface. The standard pontoon system can deploy the 150-, 200- and 250- OTTer®-Pumps and by adding two additional pontoons to the front, the system can also deploy the bigger 300- and 350-pumps. Dredging depths of 50m and beyond are possible in this configuration, making hard to reach areas easily accessible.

The second type utilises a ladder to deploy the OTTer®-Pump, which is fitted with a rotating cutter head and can be used in combination with the 200- and 250- OTTer®-Pumps. This version is suitable for more compacted soil conditions and for dredging depths up to 10m deep.