A sliding door assembly for a deep-freezing equipment, comprising - a door frame, wherein the door frame defines a frame plane, - at least one sliding door, wherein the sliding door can be moved along the frame plane between an open position and a closed position, and - a guide device for guiding the sliding door between the open position and the closed position, wherein the guide device comprises • roller assemblies each with a first roller axis and • at least one guide element guiding the movement of the sliding door, wherein the guide device is designed in such a way that the sliding door moves transversely to the frame plane when moving from the open position to the closed position, for which - the guide element comprises a parallel section arranged parallel to the frame plane and a final section arranged transversely to the parallel section, and - the roller assemblies each comprise at least one further roller axis so that the roller assemblies can take up a movement component both parallel to the parallel portion as well as transversely to it when moving along the guide element, characterized in that at least one magnetic element is attached to the door frame and/or to the sliding door by means of which the sliding door is held in the closed position and that the guide device is designed in such a way that the sliding door automatically enters the closed position from any open position, wherein the roller assemblies rest on a support surface comprising a bevel so that the sliding door moves in the direction of the closed position without further force due to gravity, and that the roller assemblies are arranged on an underside of the sliding door and the sliding door comprises at least one upper roller with an immovably mounted roller axis in its upper area, wherein the roller axis of the upper roller is aligned parallel to the frame plane. - a door frame, wherein the door frame defines a frame plane, - at least one sliding door, wherein the sliding door can be moved along the frame plane between an open position and a closed position, and - a guide device for guiding the sliding door between the open position and the closed position, wherein the guide device comprises • roller assemblies each with a first roller axis and • at least one guide element guiding the movement of the sliding door, • roller assemblies each with a first roller axis and • at least one guide element guiding the movement of the sliding door, the guide device is designed in such a way that the sliding door moves transversely to the frame plane when moving from the open position to the closed position, for which - the guide element comprises a parallel section arranged parallel to the frame plane and a final section arranged transversely to the parallel section, and - the roller assemblies each comprise at least one further roller axis so that the roller assemblies can take up a movement component both parallel to the parallel portion as well as transversely to it when moving along the guide element, characterized in that - the guide element comprises a parallel section arranged parallel to the frame plane and a final section arranged transversely to the parallel section, and - the roller assemblies each comprise at least one further roller axis so that the roller assemblies can take up a movement component both parallel to the parallel portion as well as transversely to it when moving along the guide element, characterized in that at least one magnetic element is attached to the door frame and/or to the sliding door by means of which the sliding door is held in the closed position and that the guide device is designed in such a way that the sliding door automatically enters the closed position from any open position, wherein the roller assemblies rest on a support surface comprising a bevel so that the sliding door moves in the direction of the closed position without further force due to gravity, and that the roller assemblies are arranged on an underside of the sliding door and the sliding door comprises at least one upper roller with an immovably mounted roller axis in its upper area, wherein the roller axis of the upper roller is aligned parallel to the frame plane.