We have constructed two different types of destoner to remove the heavy elements, like stones, out of a product flow.
Destoner with cyclone
The first type is a cyclone fed with a large water flow. The water pressure and centrifugal force going through the turning wheel make the heavier elements fall down in the cone. And they allow the lighter elements to pass through.
with two conveyors
The second type consists of two conveyer belts lined up with a set distance between them. The water flow enables the lighter products to cross this distance, while the heavy products fall between the belts, and are transported away.