A baling system operable to receive loose material, form the loose material into an individual charge, and compress the individual charge with one or more other charges to form a bale. The baling system includes a forming chamber and a plunger operable to move in a reciprocating manner within the forming chamber from a front-dead-center position in which a plunger face is furthest from the bale to a rear-dead-center position in which the plunger face contacts and compresses the bale. The system includes a feeder component operable to pre-compress the loose material to form the individual charge and then move the individual charge into the forming chamber, the feeder component including a feeder chute having a feeder chute outlet connected to the forming chamber. The feeder component is operable to pre-compress the loose material into the individual charge and then move the individual charge into the forming chamber for compression by the plunger into the bale. The system includes a moisture sensor operable to determine a moisture content of the individual charge in the feeder chute, wherein at least a portion of the moisture sensor is positioned in the plunger face. In one embodiment, the moisture sensor is a near infra-red sensor operable to use near infra-red radiation to determine the moisture content.L'invention concerne un système de mise en balles, destiné à recevoir un matériau en vrac, former le matériau en vrac en une charge individuelle, et comprimer la charge individuelle avec une ou plusieurs autres charges pour former une balle. Le système de mise en balles comprend une chambre de formation et un piston destiné à se déplacer en va-et-vient dans la chambre de formation d'une position de point mort avant, dans laquelle une face de piston est la plus éloignée de la balle, à une position de point mort arrière, dans laquelle la face de piston entre en contact avec la balle et comprime celle-ci. Le système comprend un élément d'alimentation destiné à pré-comp
