An agricultural baler includes a baling chamber and a pre-compression chamber. The pre-compression chamber is configured to gather crop material and to periodically form a slice of the crop material and introduce the slice into the baling chamber. The baling chamber includes a plunger provided for moving in the baling chamber thereby compressing slices of crop material into a bale. The agricultural baler further includes multiple sensors and a controller configured for controlling operation of the agricultural baler based on inputs of the multiple sensors. A first subset of the multiple sensors is directly related to bale parameters, and a second subset of the multiple sensors is indirectly related to the bale parameters. The controller is configured to control the operation of the agricultural baler and calibrate the sensors of the second subset based on outputs of sensors of the first subset.

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 re) 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.

A rectangular baler including a bale chamber having a plurality of walls including a movable wall section, an actuator for exerting a pressure on the movable wall section, a plunger for compressing crop material, and a control system configured to control the plunger to perform cyclic plunger strokes such that in each stroke the plunger force (F) exerted by the plunger on the crop material increases to reach a maximum plunger force (Fmax) to compress a newly inserted slice of crop material. The control system includes a first module to measure, at consecutive moments during a plunger stroke, a plurality of first values for the plunger force exerted by the plunger and/or for the pressure (Pd) in the actuator; and a control module to control at least one baling setting influencing the compressing of the crop material in the bale chamber as a function of the plurality of first values.

A bale chamber includes: movable density doors; at least one fluid cylinder including a fluid chamber, a piston separating the fluid chamber into a piston side and a rod side, a cylinder rod coupled to the piston on the rod side and configured to move at least one of the density doors, a piston fluid port, and a rod fluid port; and a fluid supply circuit fluidly coupled to the fluid chamber and configured to supply working fluid to the fluid chamber, the fluid supply circuit including a fluid supply controller that is selectively switchable to a first fluid supply mode and a second fluid supply mode, the fluid supply circuit being configured to supply working fluid to only the piston side when in the first fluid supply mode and to supply working fluid to both the piston side and the rod side when in the second fluid supply mode.

An agricultural baling machine including: a frame; a connection point for attaching to a towing vehicle; a plunger in a bale-forming chamber; a driveline for taking power from the towing vehicle and causing reciprocal rectilinear motion of the plunger in the bale-forming chamber, wherein the driveline includes a transmission; and a drawbar assembly that provides a mechanical link between the connection point and the frame. The drawbar assembly includes a transmission mounting member that provides a mechanical connection between the transmission and the frame.

A mounting for a baling machine gearbox includes a first, cylindrical support member secured to and extending from at least a first part of a rigid frame inside the baling machine and a second support member secured to and extending from at least a further part of the rigid frame that in use is spaced vertically from the first part of the rigid frame. The gearbox includes at least one selectively tightenable and loosenable clamp that encircles the first support member and the mounting includes at least one releasable connection securing the gearbox to the second support member, whereby on disconnecting of an input rotary shaft and a crank from the gearbox, and disconnecting of the releasable connection and loosening of the clamp the gearbox is rotatable from the operational position to an access position permitting access to the plunger while supported on the first support member.

An agricultural baling machine including: a frame; a connection point for attaching to a towing vehicle; a plunger in a bale-forming chamber; a driveline for taking power from the towing vehicle and causing reciprocal rectilinear motion of the plunger in the bale-forming chamber; and a drawbar member that provides a mechanical link between the connection point and the frame. The drawbar member is rotatably coupled to the frame such that the height of the connection point relative to the frame of the baling machine is adjustable.

A mobile baling machine including a rotary input shaft connected by way of a driveline to a rotatable flywheel; and a drive converter that converts rotation of the flywheel to reciprocal rectilinear motion of a plunger, in a bale-forming chamber forming part of the baling machine, in manner forming plant matter in the bale-forming chamber into a compressed form; the driveline including one or more clutches for controlledly transferring rotary drive between the input shaft and the flywheel, wherein the driveline includes a transmission including driveline components defining at least first and second selectable transmission ratios between the input shaft and the flywheel; and wherein the baling machine includes or is operatively connected to one or more controllers that selectively engage a relatively lower, first said transmission ratio or a relatively higher, second said transmission ratio in dependence on conditions prevailing in the baling machine.

An agricultural system including: an agricultural baler with a bale-forming chamber; a plunger movable in a reciprocating manner within the bale-forming chamber for compressing plant matter in the bale-forming chamber; and a driveline for moving the plunger within the bale-forming chamber. The driveline comprises at least one bearing. The agricultural system further includes a control unit configured to: receive load-data indicative of a load acting on the plunger during operation of the baler; and determine a bearing-status-signal indicative of wear status the bearing, based on the load-data.

A baler including a frame, a feed system coupled to the frame, a baling chamber, a plunger at least partially positioned within and reciprocally movable with respect to the baling chamber, a connecting rod coupled to the plunger, where the connecting rod defines a fluid volume therein, a sensor in fluid communication with and configured to send signals indicating the fluid pressure within the fluid volume of the connecting rod, and a controller in operable communication with the sensor and configured to determine the magnitude of a force being applied to the plunger at least partially based on a signal received from the sensor.