An additive top spreader is used for adding a thin layer of sand, cool or fine gravel on top of a product. By means of a rotating drum with a variable speed it is possible cover a defined area with any well flowing powder or sand. The amount of added product as well as the requested covered surface can be altered.

De Boer Machines has supplied many top spreaders devices up to a length of 4 meters and a dosing capacity of 5m³ per hour. The top spreader is especial suitable to dose intimately a consistent fine layer of material.