International. The capital goods consortium Dürr builds for BMW Brilliance Automotive Ltd. (BBA) in Dagong, China, a new Eco+Paintshop that offers greater resource savings. In this paint plant, technological, economically profitable and environmentally sustainable innovations are applied for painting in the automotive sector.
Pretreatment and coating by cataphoresis is carried out through the Ecopaint RoDip M rotary immersion coating system. Making use of the rotational movement of the bodies in the immersion tank, this technology makes possible a design of the immersion tank without inlet and exit ramps. In this way the decrease in the volume of the tank is achieved, which in turn allows a more compact design and also a lower consumption of energy, water and chemical products.
Another technical feature that proves its "Eco+" character is the automatic Integrated Paint Process IPP (Integrated Paint Process), which eliminates the need for first application, as well as the corresponding drying phase. The paint booths are equipped with EcoDryScrubber technology, dry separation that does not require water or chemicals. Thanks to this system, the wide air recirculation allows energy savings of up to 60%. At present, EcoDryScrubber systems are already operational or in installation on more than 70 paint lines on four continents.
In Dadong, the paint will be applied with 36 Dürr paint robots of the EcoRP E033 and L133 EcoRP types. These robots are equipped with the EcoBell3 atomizer, which is characterized by significantly higher performance.
The specific energy consumption that BMW will achieve in Dadong will set high standards worldwide and less than 500 kilowatt hours of energy will be needed per painted body. This value comes down to a single third of the value that used to be the standard a decade ago.
