Abstract: An agricultural baler including a bale chamber; a plunger; a feeder duct; and a rotor feeder unit. The rotor feeder unit includes a rotor feeder unit bottom distant from a rotor feeder forming a lower boundary of a conveying channel through the rotor feeder unit. The rotor feeder unit also includes scrapers placed in a conveying direction behind the rotor feeder. The scrapers extend in between the tines and have a leading face cooperating with the tines. The agricultural baler further includes a position adjuster configured to displace the leading face of the scrapers relative to the rotor feeder unit bottom, and to displace a top wall and/or the bottom wall of the feeder duct, in order to adjust the volume of the feeder duct.

Abstract: An agricultural baler including a bale chamber; a plunger; a feeder duct; and a rotor feeder unit. The rotor feeder unit includes a rotor feeder unit bottom distant from a rotor feeder forming a lower boundary of a conveying channel through the rotor feeder unit. The rotor feeder unit also includes scrapers placed in a conveying direction behind the rotor feeder. The scrapers extend in between the tines and have a leading face cooperating with the tines. The agricultural baler further includes a position adjuster configured to displace the leading face of the scrapers relative to the rotor feeder unit bottom, and to displace a top wall and/or the bottom wall of the feeder duct, in order to adjust the volume of the feeder duct.

Abstract: An agricultural baler includes a pre-compression chamber having an outlet, and a main bale chamber adapted to receive crop from the pre-compression chamber. A plunger is reciprocally disposed within the main bale chamber, and includes a plurality of plunger slots which are structured and arranged to allow a plurality of needles to intermittently pass therethrough. The baler is characterized by a plunger cleaner which is structured and arranged to provide the dual functionality of: 1) cleaning the plunger slots, and 2) opening and closing the outlet of the pre-compression chamber.

Abstract: An agricultural baler includes a pre-compression chamber having an outlet, and a main bale chamber adapted to receive crop from the pre-compression chamber. A plunger is reciprocally disposed within the main bale chamber, and includes a plurality of plunger slots which are structured and arranged to allow a plurality of needles to intermittently pass therethrough. The baler is characterized by a plunger cleaner which is structured and arranged to provide the dual functionality of: 1) cleaning the plunger slots , and 2) opening and closing the outlet of the pre-compression chamber.