An apparatus for producing sausages comprising a source of meat mass connected to a tubular injector of such a meat mass and which ends in a rotatable sausage forming sleeve member (1) capable of rotating altogether with a tubular casing (3) which is arranged about the tubular injector (13) and passed through the sleeve member, and a pulling and constricting assembly which pulls out the tubular casing already filled with the meat mass from the sleeve member, the sleeve member including a longitudinal passage (12) axially passing therethrough and which defines a converging inlet wherein a plurality of radially inwardly extending projections (5) are arranged, said inlet leading to an inside surface wherein a plurality of rolling means (8) are provided, both the projections and the rolling means are able to rotate and lead the tubular casing filled with meat mass through the sleeve member without excessive frictional engagement.