'Little Mermaid' Underwater Excavator

The little mermaid took 18 months to build in-house by converting a conventional mini excavator. This was done by removing the cabin and engine and adding remote controls. The remote control unit was connected via hydraulic umbilical leads, supplying the machine with hydraulic power. It works on a hydraulic pressure of around 150 bar, with a flow rate of 25-50 litres per minute, weighing 4 tonnes. The mermaid is currently set up to work underwater up to 25m deep, but can easily be set up for deeper water conditions if required.
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