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 plurality of rotating arms which are rotatable with respect to a same rotation axis of the arms and which each bear 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 rotation axis of the arms and the axis of the support crown coincide with one another; the rotating arms of the plurality of rotating arms are mobile independently of one another; the rotating arms of the plurality of rotating arms and the support crown are dimensioned with respect to one another in such a way that each rotating arm of the plurality of rotating 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 rotating arm of the plurality of rotating 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; contemporaneously, a second slab-shaped element coming from the inlet line and subsequent to the first slab-shaped element, can be gripped by a second suction gripping unit of the plurality of suction gripping units, rotated by a second rotating arm of the plurality of rotating arms which is contiguous to the first rotating arm and which bears the second suction gripping unit and released by the second suction gripping unit on a second 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 plurality of rotating arms which are rotatable with respect to a same rotation axis of the arms and which each bear 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 rotation axis of the arms and the axis of the support crown coincide with one another; the rotating arms of the plurality of rotating arms are mobile independently of one another; the rotating arms of the plurality of rotating arms and the support crown are dimensioned with respect to one another in such a way that each rotating arm of the plurality of rotating 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 rotating arm of the plurality of rotating 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; contemporaneously, a second slab-shaped element coming from the inlet line and subsequent to the first slab-shaped element, can be gripped by a second suction gripping unit of the plurality of suction gripping units, rotated by a second rotating arm of the plurality of rotating arms which is contiguous to the first rotating arm and which bears the second suction gripping unit and released by the second suction gripping unit on a second seat of the plurality of seats. it comprises a support crown which is solidly constrained to the frame; the rotation axis of the arms and the axis of the support crown coincide with one another; the rotating arms of the plurality of rotating arms are mobile independently of one another; the rotating arms of the plurality of rotating arms and the support crown are dimensioned with respect to one another in such a way that each rotating arm of the plurality of rotating 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 rotating arm of the plurality of rotating 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; contemporaneously, a second slab-shaped element coming from the inlet line and subsequent to the first slab-shaped element, can be gripped by a second suction gripping unit of the plurality of suction gripping units, rotated by a second rotating arm of the plurality of rotating arms which is contiguous to the first rotating arm and which bears the second suction gripping unit and released by the second suction gripping unit on a second seat of the plurality of seats.