Innovative conveyor technology has helped two BMW facilities add flexibility and reduce chemical usage and wastewater on their pretreatment and electrocoat lines.
The first of these new pretreatment and electrocoating plants to be installed anywhere in the world is now in operation at the BMW Group factories in Munich and Dingolfing. The hanging conveyor technology for the spray coating system in Munich and the vertical vehicle body immersion system in Dingolfing have been replaced by a conveyor technology that rotates the vehicle bodies as they pass through the dip tank. In addition to the plant engineering benefits, this system also offers advantages in terms of process improvements for the treatment of the vehicle bodies. Flexibility while passing over a tank, an even flooding of cavities and minimum material carryover are only a few of the innovations that were achieved by this new conveyor technology, which, at first glance, seems amazingly simple.