Dredge Mining Equipment Our dredge mining equipment is tailored to your production demands in a wet environment. Dredging, excavating and transporting slurry, for all kinds of commodities. OTTer-Pump Submersible dredge units for multi-purpose dredging activities. Custom-built vessels Specialised dredge mining vessels for land-based and nearshore mining. OTTer A compact modular dredger that is easy to maintain and deploy, utilising Royal IHC’s well-known submersible TT-pump range. Looking for advice on our dredge mining equipment? Fill in the form and our experts will contact you.