At the same time, the upgrade does not require any fundamental changes to the existing logistics and production processes. For the modernization, current manufacturing conditions are analyzed, and the retrofit is planned and prepared precisely. Here, the planning benefits from more than 40 years of experience of HESS AAC SYSTEMS, and this know-how enables specific practical solutions to be identified that are compatible with the existing plant logistics. After the detailed analysis, machine drawings are created in a second step and coordinated with the technical department of the manufacturer. Subsequently, the mechanical equipment is connected to a PLC-based control system to perform a test of all conversion components in idle mode before the modernization is finally implemented.