Inductive heating is a rational method for brazing the short circuit rings of short circuit rotors in electrical machine construction. The procedure is simplicity itself. The short circuit ring is laid onto the ring inductor, which is about the same size as the short circuit ring; the rotor with the short circuit rods is placed into the trough-shaped groove of the short circuit ring and the filler metal is added in pellet form. The soldering process is then started, with the pyrometer controlling the temperature.

System description:
Short circuit rotors are brazed using our inductive heating systems of type eldec MFG 100 with 100 kW continuous output power or eldec MFG 200 with 200 kW and higher continuous output power. The systems can also be equipped to permit operation with several power outputs. For example, heating cables, which are also used for joining or separating shrink-fit connections, can be used in addition to or instead of the coaxial transformer. All this requires is a manual or motor-driven switchover function within the device to the respective power output.