Aseptic apparatus for filling and closing aluminium receptacles

An aseptic apparatus for filling and closing Aluminium receptacles, the aseptic apparatus comprising:

• a filling unit comprising a first chamber housing a filling machine that is configured to receive the receptacles and to inject a product within the receptacles;
• at least one transfer star-wheel downstream the filling unit;
• a closures placing station arranged on a first zone of the transfer star-wheel that is located beside the filling unit, said closures placing station being configured to place a concave closure onto a mouth of each receptacle, said concave closure being without a thread;
• a closing unit downstream the transfer star-wheel, said closing unit comprising a second chamber housing a closing machine that is configured to apply each concave closure around an externally threaded neck of the corresponding receptacle, wherein a thread is created in each concave closure during the application of the concave closure on the neck of the receptacle;
• air supplying means for supplying sterile air to the first chamber and to the second chamber, said air supplying means being configured to supply air in such a way that the first chamber is at a first pressure and the second chamber is at a second pressure, the second pressure being lower than the first pressure;
• an isolator adapted to define a controlled-contamination and sterile environment, said filling unit, said transfer star-wheel, said closures placing station and said closing unit being arranged inside the isolator.