Siemens Metals Technologies has won an order from German company Aluminium Norf Gmbh (Alunorf) to supply automation and drives systems to expand and modernize hot rolling mill no. 1 in its Neuss Plant.
The aim of the project is to increase production capacity. The conversion work will be performed in several stages, and should be completed by the start of 2016.
In the course of a multi-stage program to expand capacity, an extra rolling stand will be added to the finishing line of the hot rolling mill. Modifications will also be made to the existing gear units. The last stand on the finishing mill and the coiler will be fitted with new AC drives. Both measures will increase rolling speed and therefore production capacity.
Siemens will be supplying a synchronous motor with a non-salient pole rotor for the last rolling stand, which is currently equipped with a DC motor, and an induction motor for the coiler. This will replace three DC motors mounted on one shaft. As well as installing Sinamics SM150 medium voltage converters, Siemens will also handle the entire dismantling and reassembly work, as well as the commissioning of the electrical components. The DC motor from the last rolling stand will be overhauled in a Siemens workshop, re-assembled and then used again in the new rolling stand. Alunorf will supply the automation hardware required for the new rolling stand, while Siemens will make the necessary adaptations to the software.