The cartridge pressing-out device produces tubular cartridges. It has a cartridge holder (1) and a top cover (4) able to be set on its rear end. The top cover is in the form of a pneumatic cylinder supplied by an auxiliary compressed air line connection (7). The top cover contains a pneumatically operated closing plate piston (5) to close the rear end of the holder or of the cartridge (2). The piston has a boring (9) to conduct the compressed air acting on the cartridge piston (3).
