A pressing device, comprising: a lower presser, provided with a pressing surface facing upwards; an upper presser, provided with a pressing surface facing downwards; at least one of the two pressers is movable towards and away relative to the other in order to perform pressing of a layer of ceramic material; wherein the pressers (10,11) are configured to be activated to reciprocally near and distance so as to carry out the pressing of a deposited load in the form of a layer of ceramic material, in a pressing stroke; a pressing space, which is delimited inferiorly and superiorly by the lower presser and the upper presser; a lower belt, movable along a forward direction and comprising an active portion which is disposed at least partially between the upper presser and the lower presser; an upper belt, movable along the forward direction and comprising an active portion, which is disposed at least partially between the lower belt and the upper presser; characterized in that it comprises side barriers (13,14,15), which are so arranged as to laterally contain the layer within the pressing space, and as to not interfere with the movement of the pressers (10,11) and to not influence the pressing of the load, preventing particles or parts of the load escaping to the side of the lower belt; wherein the side barriers (13,14,15) are located within the operating area of the pressers (10,11), meaning the area inside which the pressers are able to exert pressure, such that the side barriers are compressed together with the layer and perform their containment function throughout the entire pressing cycle. a lower presser, provided with a pressing surface facing upwards; an upper presser, provided with a pressing surface facing downwards; at least one of the two pressers is movable towards and away relative to the other in order to perform pressing of a layer of ceramic material; wherein the pressers (10,11) are configured to be activated to reciprocally near and distance so as to carry out the pressing of a deposited load in the form of a layer of ceramic material, in a pressing stroke; a pressing space, which is delimited inferiorly and superiorly by the lower presser and the upper presser; a lower belt, movable along a forward direction and comprising an active portion which is disposed at least partially between the upper presser and the lower presser; an upper belt, movable along the forward direction and comprising an active portion, which is disposed at least partially between the lower belt and the upper presser; characterized in that it comprises side barriers (13,14,15), which are so arranged as to laterally contain the layer within the pressing space, and as to not interfere with the movement of the pressers (10,11) and to not influence the pressing of the load, preventing particles or parts of the load escaping to the side of the lower belt; wherein the side barriers (13,14,15) are located within the operating area of the pressers (10,11), meaning the area inside which the pressers are able to exert pressure, such that the side barriers are compressed together with the layer and perform their containment function throughout the entire pressing cycle.