The task involved replacing an old Siemens S5 controller with a new S7 controller in order to achieve a striking increase in production. The first phase involved replacing the existing process control system. iQOS, the Bouygues standard solution for dosing / mixing, adjusted to the demands of HACO, was used.
Every project begins with analysis. At HACO, there are about ten set-up stations. The system prints a set-up list for every order and then weighs the ingredients in advance, which are then added manually. The spectrum of quantities required ranges from 20 g to 30 or 40 kg. The control system indicates what premixtures the finished mixture is to be composed of. Once these premixtures have been identified and scanned, the system continues. This process can involve several stages.
Thanks to the professional planning and meticulous acquisition of knowledge regarding the individual processes, the schedule for the new system was adhered to almost exactly to the day. “Despite the great complexity, all processes occurred from A to Z perfectly”, noted André Hunziker with great satisfaction. The objective regarding the desired production increase of about 30 percent was also achieved.
Michael Joss, production manager at HACO, is satisfied with the system. The system runs flawlessly. “And if there is ever any problem, a Bouygues E&S specialist is there immediately.” Stefan Gertsch, project manager at HACO, emphasised the thorough preparation, introduction and training: “This was the basis for smooth commissioning of the system and trouble-free operation to this day.”