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    • Cavitation Cleaners

    Cavitation Cleaners

    Cavitation cleaners are high-pressure water tools that strip biofouling, coatings and corrosion from ship hulls, offshore structures and submerged steelwork. We supply cavitation cleaning equipment for sale or hire, new or used, shipped worldwide door to door.

    Our range covers the tool the diver holds and the unit that powers it: handheld cavitation guns, or cavitators, zero-thrust guns and lances, 450mm surface rotors and ROV-mounted lances, driven by diesel, petrol or electric high-pressure units from portable carts to containerised offshore power packs. We stock Divewise and Cavidyne alongside our own Cavit range.

    Specifying starts with the job. Guns suit detailed and confined work; a 450mm rotor covers continuous hull and tank areas far faster. Every tool needs an underwater pressure washer sized to match its flow and pressure. For brush carts and rotary systems, see our Hull Cleaning range.

    Tell us the asset and the access you have, and we will specify a package for supply or hire.

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    Frequently Asked Questions

    An underwater cavitation cleaner relies on the implosion of microscopic vacuum bubbles to clean surfaces, rather than brute water pressure. When high-frequency sound waves or specialised nozzles create these bubbles in water, they collapse upon hitting a solid surface. This collapse generates a powerful microscopic shockwave that easily strips away marine growth. Standard pressure washers rely entirely on high-velocity water streams, which can be far less efficient underwater and pose a higher risk of damaging delicate marine surfaces.

    Yes, cavitation cleaning is exceptionally safe for anti-fouling coatings. Because the cleaning action is driven by microscopic bubble implosions, it easily removes biofouling, barnacles, and algae without scraping or penetrating the underlying paint layer. Preserving this expensive hull coating extends its operational lifespan. Protecting the paint layer prevents toxic heavy metals from leaching into the marine environment during routine maintenance.

    A zero-thrust lance is vital because it prevents the diver from being pushed backwards by the reactive force of the high-pressure water stream. Operating standard high-pressure tools underwater requires the diver to exert immense physical effort just to remain stable in the water column. Zero-thrust designs balance the water pressure output, allowing the diver to operate the tool safely with minimal fatigue. This reduction in physical strain significantly lowers the risk of underwater accidents and improves overall cleaning precision.

    Yes, marine operators frequently integrate cavitation tools with Remotely Operated Vehicles (ROVs). Many units in our range, including specific zero-thrust lances and surface rotor cleaners, are perfectly suited for robotic deployment. Using an ROV for hull and offshore structure cleaning keeps human divers out of hazardous environments, such as deep-water installations or areas with strong underwater currents. It also allows for continuous maintenance operations without the strict time limits associated with human diving.

    Cavitation technology provides a highly eco-friendly alternative to traditional marine cleaning methods. The primary benefit is that the technology requires absolutely no harsh chemicals or abrasive solvents to achieve a completely clean surface. Additionally, by gently removing growth without damaging the hull coating, the process minimises the release of harmful micro-plastics and toxic paint flakes into the surrounding ocean. This ensures marine operators stay fully compliant with increasingly strict global environmental regulations.