The wood and branch grid separates debris over 60 mm in length from the produce (walnuts, hazelnuts, chestnuts, almonds, cider apples etc.). An elevator regularly deposits materials to be processed over the grid. It can be placed on a L20 – L22 – L28 – L38 or on a stand to feed the elevator. The produce falls between the 60 mm slats. Pieces of wood, branches and leaves are evacuated at the front.