They are ideal for all kinds of materials, and given their sturdy construction, especially for rocks and materials of big dimensions. The strong machine is built in such a way as to put on it every kind of hopper’s capacity and dimension. The frame on which the wheels stand on, is bigger than the shaft so that the loss of the materials’ scraps during the functioning is avoided.
The feeding carriage slides alternatively, causing the advance of the materials itself. The driving part is constituted by rod – crank system and speed – change drive unit with manual or electric regulation.