Patent ID: 8308626

Claim:
A rotor unit for a centrifugal separator, which centrifugal separator comprises a non-rotatable housing in which the rotor unit is disposed about a central axis of rotation, an inlet for supply to the rotor unit of a mixture of components which are to be separated, and at least one outlet for a component separated during operation in the rotor unit, whereby the rotor unit comprises: a separating chamber formed inside the rotor unit; an inlet chamber which is connected to the inlet and to the separating chamber, and which is formed radially within said separating chamber; at least one outlet connected to the separating chamber; and a plurality of separating discs made of metal and disposed at a distance axially from one another in said separating chamber coaxially with the axis of rotation, and wherein at least two of the separating discs are undetachably joined together to form a composite assembly, wherein the separating discs are joined together by soldering or welding, the soldering or the welding constituting a dividing wall between the inlet chamber and the separating chamber.