Issue: Jun 2013


Dürr Eco+Paintshop for SGM in Shanghai



by Jon Knox

Dürr is building a new Eco+Paintshop for Shanghai General Motors with reduced energy consumption and lower emissions. The paint shop has a throughput of 20 bodies per hour. The design is so innovative that the paint shop can extended to double capacity at any time.

For both the interior as well as the exterior coating, SGM uses fully automated paint application, from the primer to the base coat through to the clear coat, thereby reducing paint consumption. The primer application is performed by 20 EcoRP L133 and L030 EcoRP painting robots. Base and clear coats are applied by 44 paint robots in stop and go operation. All robots are equipped with the proven EcoBell2 paint atomizer. Before commencing the paint job, the bodies are prepared and cleansed of impurities by an ionization portal and the EcoClean exterior cleaning system.

Another element in this resource-saving paint shop is the EcoDryScrubber. The dry separation of paint overspray, with extensive air recirculation, ensures up to 60% less energy consumption in the spray booth. Furthermore, this technology does not use water or chemicals. Worldwide, 65 paint lines are already producing or are being equipped with EcoDryScrubber.

An important aspect, with regard to the energy efficiency of the paint shop, is heat recovery from the spray booth exhaust air and the oven’s exhaust air streams. Dürr's optimized hall ventilation concept, which is included in the delivery scope, also has a positive effect on this process.

During the entire coating process, exhaust air from the spray booth is firstly pre-concentrated and then purified of all solvents in a RTO (regenerative thermal oxidation) process. In its role as a turnkey supplier, Dürr also provides the utilities distribution and the fire protection equipment associated with the installation.

The flexibly designed installation, which was ordered at Dürr in the first quarter of 2013, offers a broad range of production possibilities. >From June 2015 Cadillac’s premium vehicles will be painted in Shanghai.

Dürr is a mechanical and plant engineering group that holds leading positions in the world market in its areas of operation. It generates a good 80% of its sales in business with the automotive industry. It also supplies the aircraft, machinery, chemical, and pharmaceutical industries with innovative production and environmental technology. The Dürr Group operates in the market with four divisions. Paint and Assembly Systems plans and builds paint shops and final assembly systems for the automobile and aircraft industry. Application Technology provides automated paint application, sealing, and gluing with its robot technologies. Machinery and systems from the Measuring and Process Systems division are used in balancing and cleaning processes, in engine and transmission manufacturing and in final vehicle assembly, among other areas. The fourth division, Clean Technology Systems, is focused on processes to improve energy efficiency and on exhaust air purification. Dürr has 51 business locations in 23 countries worldwide and approximately 7,800 employees. The Group achieved sales revenues of € 2,4 billion in 2012.

Founded in 1970, Dürr USA offers the complete product and service spectrum of Dürr. Paint and Final Assembly Systems offers equipment for painting and assembly processes while Application Technology provides paint application systems. Dürr’s Clean Technology Systems is the global leader in air pollution control and environmental abatement. Dürr USA also offers Aircraft and Technology Systems for aircraft plants, Balancing and Assembly Products, as well as Cleaning and Filtration Systems for a variety of industrial applications.

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