Movable panel system comprising: i) a guide, lower, comprising at least one rail which extends along a longitudinal axis (X-X); ii) at least one glass panel which extends planarly on an imaginary panel plane, wherein the panel comprises a first edge, upper, and a second edge, lower; iii) at least one carriage device which supports in sliding the glass panel on the guide, being engaged to said second edge; wherein said carriage device comprises: - a carriage body engaged to the glass panel; - a wheel group comprising at least two wheels, preferably two wheels, suitable for engaging the rail in sliding and a support frame to which the wheels are hinged, rotationally free, wherein the carriage body and the support frame are mutually engaged by a hinge which allows reciprocal rotation, wherein the carriage body comprises a housing seat and the support frame comprises a hinging pin which is housable in said housing seat rotationally free; wherein the movable panel system is characterized in that the carriage body comprises an upper structure solidly connected to the glass panel and a lower structure to which the wheel group is engaged; wherein the upper structure and the lower structure comprise an upper inclined plane and a lower inclined plane respectively, suitable for allowing sliding operations on each other and for being mutually positionable in a plurality of positions in which each position corresponds to a respective distance between the wheel group and the edge of the glass panel. i) a guide, lower, comprising at least one rail which extends along a longitudinal axis (X-X); ii) at least one glass panel which extends planarly on an imaginary panel plane, wherein the panel comprises a first edge, upper, and a second edge, lower; iii) at least one carriage device which supports in sliding the glass panel on the guide, being engaged to said second edge; wherein said carriage device comprises: - a carriage body engaged to the glass panel; - a wheel group comprising at least two wheels, preferably two wheels, suitable for engaging the rail in sliding and a support frame to which the wheels are hinged, rotationally free, wherein the carriage body and the support frame are mutually engaged by a hinge which allows reciprocal rotation, - a carriage body engaged to the glass panel; - a wheel group comprising at least two wheels, preferably two wheels, suitable for engaging the rail in sliding and a support frame to which the wheels are hinged, rotationally free, wherein the carriage body and the support frame are mutually engaged by a hinge which allows reciprocal rotation, wherein the carriage body comprises a housing seat and the support frame comprises a hinging pin which is housable in said housing seat rotationally free; wherein the movable panel system is characterized in that the carriage body comprises an upper structure solidly connected to the glass panel and a lower structure to which the wheel group is engaged; wherein the upper structure and the lower structure comprise an upper inclined plane and a lower inclined plane respectively, suitable for allowing sliding operations on each other and for being mutually positionable in a plurality of positions in which each position corresponds to a respective distance between the wheel group and the edge of the glass panel.