US Patent 7398728 Baling press

A baling press having a rectangular pressing space in which a pressing piston is movably disposed. The pressing space includes a crop material inlet in which the crop material to be pressed enters the pressing space from the feed channel. The material is pre-pressed in the pressing space by a compressing fork before it is forcefully inserted into the pressing space by a loading fork. The baling press further includes a sensor system which determines at least one value which represents the vertical distribution of the material and/or the vertical distribution of the density of said material, in the pressing space.