A heating apparatus (5) in an injection molding apparatus (1000) comprising: a heatable sleeve or jacket (10) comprised of a sheet (14) of highly heat conductive metal material, formable into a heating cylinder (14c) having a central channel (16) receiving a selected nozzle (40), a stabilization ring or cylinder (20) adapted to receive a selected longitudinal portion (DL) of the downstream or distal end (14de) of the heating cylinder (14c) and to engage or mate an inner circumferential surface (20is) with an outer surface (14os) of the heating cylinder.

The present disclosure relates to a hot runner control device for a hot runner assembly and a method of operating a hot runner controller, which comprises a signature element, the hot runner control device comprises a processor configured to receive a signature from the signature element, the signature being characteristic for the signature element of the hot runner assembly, the processor is further configured to access a database comprising at least one reference signature being characteristic for at least one of the signature elements, and the processor is further configured to identify the signature element of the hot runner assembly, by comparing the received signature with the at least one reference signature.