Visitors ‘mine’ ore (mixed coloured balls) with two excavators, unloading them onto a filter that removes unwanted rock (white balls). Visitors work belt and screw conveyors to load the ore into a tall separator machine.
The separator runs continuously while visitors are nearby, pumping balls around. Visitors can use four touchscreen stations to ‘purify’ the ore – pulling their lever to filter out balls of the requested colour. Each station has a purity score and a fifth screen shows overall results.