the problem of the lag time in picking and dropping mixed load products during a palletization process is solved by using a tool having i ) a gripping member that can be partially closed in a first fast movement while it is moved by a robot towards a product and then closed onto the product in a second shorter movement and ii ) a product abutting plate that is movable in unison with the tool in opposite direction thereof as the tool is moved by a robot towards and away the mixed load pallet .