Abstract: The invention relates to a turning unit for turning a, preferably dish-shaped, open container (19) with a portion of flat products, in particular of potato chips or the like, received in the container, the turning unit comprising at least one turning device (15) which is set up to turn the container by transferring it from a first orientation of the container, in which an opening (20) of the container is oriented in a first direction, to a second orientation, in which the opening is oriented in a second direction, by rotating the container about an axis of the container.

Abstract: The invention relates to a device for thermally treating or post-treating synthetic material, especially polyester material such as polyethylene terephthalate (PET). The gassing of the granulate (8) primarily takes place in the conical discharge area (5) of the shaft reactor. To this end, a middle cylindrical partial area (5b) is situated in the conical discharge area (5) between an upper conical partial area (5a) and a lower conical partial area (5c). Said middle cylindrical partial area has a cylinder jacket-shaped slotted hole screen (10) whose slots run parallel to the axis of the discharge area (5) in a vertical manner. The invention is characterized in that the bulk of the granulate (8) located in the discharge area (5) is gassed. In addition, the friction between the downwardly moving granulate (8) and the gassing area (7) formed by the slotted hole screen (10) is minimized.