A washing apparatus (10), in particular for heat-disinfection, comprises a plurality of washer machines (11, 12, 13, 14, 15), which are positioned aligned along an axis of alignment (T), and a movement device (19) to move an object-bearing container (20) parallel to the axis of alignment (T). The movement device (19) is provided with a trolley (21) to transport the container (20) and having sliding means (22) guided by a guide element (35) which extends parallel to the axis of alignment (T). The movement device (19) is also provided with movement means (24) to move the trolley (20) parallel to the guide element (35). The washing apparatus also comprises a frame (32), disposed along the axis of alignment (T) and made so as to define a plurality of housing zones (33) in which the washer machines (11, 12, 13, 14, 15) are positioned. The movement means (24) is associated at least partly with the frame (32).
