Fuente: WIPO "tomato" There is described a cleaning unit (8) for a packaging machine (1) configured to produce sealed packages (2) containing a pourable product, the cleaning unit (8) being configured to clean at least one component (12) of the packaging machine (1), the cleaning unit (8) comprising a housing (15) internally defining a cleaning chamber (16) adapted to receive a cleaning medium and the component (12), or part of the component (12), to be cleaned; the cleaning unit (8) includes a shaped profile (19) within the housing (15), the shaped profile (19) being configured to guide the cleaning medium within the cleaning chamber (16) so as to follow an external surface (12a) of said component (12) or part of the component (12).