The maize harvest chain is impressively closed by the SIKU maize push plate of the Dutch company Holaras. The three-part metal shield can be moved powerfully in the silo, even with the largest tractors. The sign elements to the right and left of the central main sign are movable. This allows the shear width and direction of the bulk material to be varied. The maize push plate can be attached to the rear coupling as well as to the front coupling of SIKU tractors by means of an enclosed adapter.