A sorting apparatus for sorting and stacking slab-shaped elements, comprising: a frame; an inlet line for infeeding slab-shaped elements to be sorted and stacked; a plurality of suction gripping units for gripping slab-shaped elements; a sorting carousel which is rotatable with respect to a carousel axis and which comprises a plurality of carousel arms, the carousel arms of the plurality of carousel arms being mutually solidly constrained and each bearing a suction gripping unit of the plurality of suction gripping units; a plurality of seats which are configured to receive the slab-shaped elements released by the plurality of suction gripping units, forming stacks of slab-shaped elements; characterised in that: it comprises a support crown which is solidly constrained to the frame; the carousel axis and the axis of the support crown coincide with one another; the carousel arms of the plurality of carousel arms and the support crown are dimensioned with respect to one another in such a way that each carousel arm of the plurality of carousel arms is supported by the support crown at or in proximity of the relative free end; the sorting apparatus is configured in such a way that a first slab-shaped element coming from the inlet line can be gripped by a first suction gripping unit of the plurality of suction gripping units, rotated by a first carousel arm of the plurality of carousel arms which bears the first suction gripping unit and released by the first suction gripping unit on a first seat of the plurality of seats. a frame; an inlet line for infeeding slab-shaped elements to be sorted and stacked; a plurality of suction gripping units for gripping slab-shaped elements; a sorting carousel which is rotatable with respect to a carousel axis and which comprises a plurality of carousel arms, the carousel arms of the plurality of carousel arms being mutually solidly constrained and each bearing a suction gripping unit of the plurality of suction gripping units; a plurality of seats which are configured to receive the slab-shaped elements released by the plurality of suction gripping units, forming stacks of slab-shaped elements; characterised in that: it comprises a support crown which is solidly constrained to the frame; the carousel axis and the axis of the support crown coincide with one another; the carousel arms of the plurality of carousel arms and the support crown are dimensioned with respect to one another in such a way that each carousel arm of the plurality of carousel arms is supported by the support crown at or in proximity of the relative free end; the sorting apparatus is configured in such a way that a first slab-shaped element coming from the inlet line can be gripped by a first suction gripping unit of the plurality of suction gripping units, rotated by a first carousel arm of the plurality of carousel arms which bears the first suction gripping unit and released by the first suction gripping unit on a first seat of the plurality of seats. it comprises a support crown which is solidly constrained to the frame; the carousel axis and the axis of the support crown coincide with one another; the carousel arms of the plurality of carousel arms and the support crown are dimensioned with respect to one another in such a way that each carousel arm of the plurality of carousel arms is supported by the support crown at or in proximity of the relative free end; the sorting apparatus is configured in such a way that a first slab-shaped element coming from the inlet line can be gripped by a first suction gripping unit of the plurality of suction gripping units, rotated by a first carousel arm of the plurality of carousel arms which bears the first suction gripping unit and released by the first suction gripping unit on a first seat of the plurality of seats.