The product which is full of stones falls through a feeding flap and is distributed uniformly on the working surface of the machine, which is provided with an optimum air flow by its own fan. The oscillating movement in combination with the air flow ensures a separation of the light and heavy particles. The cleaned product and the stones are discharged via two separate outlets.
The dry stoner is available in two types and several sizes. It is equipped either with one working surface as described above or with two one on top of the other. On the upper working surface the product is graded according to specific gravity. On the lower one light and heavy particles are separated.
Due to the two construction types and several sizes, a wide capacity range can be cleaned excellently with the SCHULE dry stoner, even if the product is highly contaminated.