Abstract: A sealing machine for the sealing of packages comprises a sealing chamber in which packages can be sealed. The sealing chamber comprises a working platform on which packages can be conveyed; a chamber lid movable relative to the working platform between an open position and a closed position; a sealing mechanism for the sealing of packages; and a suction unit for suction of gas from a volume enclosed by the chamber lid and the working platform. The sealing machine further comprises a protective frame kinematically connected to the chamber lid, and the protective frame has apertures through which gas can flow from the outer space into the enclosed volume.

Abstract: A packaging machine for packaging products under vacuum, the packaging machine comprising a lid and a chamber bottom which together form a chamber, the chamber bottom having formed therein a suction opening which can be closed in a gas-tight manner and to which a suction device for evacuating the chamber is connected. An electrically heatable grid is arranged on the suction opening to prevent ice forming near or around the suction opening during evacuation of the chamber.

Abstract: A packaging machine for packaging products under vacuum, the packaging machine comprising a lid and a chamber bottom which together form a chamber, the chamber bottom having formed therein a suction opening which can be closed in a gas-tight manner and to which a suction device for evacuating the chamber is connected. An electrically heatable grid is arranged on the suction opening to prevent ice forming near or around the suction opening during evacuation of the chamber.