The base of the system consist of special emery mouled two stones which lays on eachother. The stone underneath is connected to the main axle and is forced with the engine.
The substrate stone stone is fixed. The product is spread between two stones in the entry and the folding and bran peeling is done. So that the distance between stones can be regulated, special products can be grained. Throug the entry with the capacity refining bolts the necessary rates of peeling is possible. The engine strap connections and the revolving stone system are covered and so secure.