Abstract: Machines for making bales of disgregated materials, including a compacting chamber in which a pressing member moves towards and away from a stopping point for compacting the disgregated materials, the chamber having a larger lower surface which has a substantially flat surface provided with runoff holes, smaller surfaces each having a frame which serves as an attachment flange, an output door arranged to move in a vertical direction irrespective of whether the pressing plate has reached the stopping point, wherein the capacity of the chamber is variable to accommodate a possible excess in the disgregated materials introduced into the chamber to be compacted, and a telescopic box having on at least one of its walls through holes located in the proximity of the door.

Abstract: These improvements are applied to the machines that comprise a compacting chamber and consist in: a.-the larger lower surface of the compacting chamber is made up of a substantially flat surface provided with runoff means. b.-each smaller surface of the compacting chamber has, in equal conditions, a frame arrangement which, acting as an attachment flange. c.-the output door is arranged so that is only moves in the vertical direction irrespective of whether the pressing plate has reached the stopping point. d.-the capacity of the compacting chamber is variable according to a possible excess in the introduced mass to be compacted and e.-the telescopic box has on at least one of its walls, bottom wall and/or roof through holes located in the proximity of the openable door.