An apparatus for processing bales, for agricultural machines provided with a chamber for forming a substantially cylindrical bale, which comprises at least one structure for supporting a reel (A) of banded material, of the type of a net, a polymeric film, and the like, designed to wrap the bale. The apparatus comprises means of movement of a device (2) for the transfer and delivery of an end flap (A) of the reel (A) to the forming chamber such device (2) is provided with an end blade (3) which can move along a work path, from a first limit position, in which the blade (3) is proximate to the reel (A) supported by the structure, for the withdrawal of the end flap (A), to a second limit position, in which the blade (3) is facing toward the chamber, for the delivery of the flap (A) to the chamber, and vice versa, such limit positions having substantially the same height from the ground.
