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The right exhaust air purification technology for every requirement


Combined expertise: Dürr offers a complete range of energy-efficient exhaust air purification systems

Bietigheim-Bissingen, March 15th, 2017 – Dürr will be presenting its entire range of thermal exhaust air purification and external heat recovery systems at the International Converting Exhibition (ICE), March 21-23, 2017 in Munich.

Two brands, Dürr and LTB (Luft- und Thermotechnik Bayreuth GmbH), will be appearing together for the first time. Both are part of the Dürr Group, along with KBA-CleanAir. With the takeover of the KBA-CleanAir division of the Koenig & Bauer Group at the end of 2016, the Dürr Group completed its technology portfolio. The activities of KBA-CleanAir will be fully merged into the Dürr brand in the near future. The Dürr Group offers customized, economical exhaust air purification solutions for all requirements in the printing and finishing industry under the LTB and Dürr brands.

When investing in a legally required exhaust air purification technology, it is not only the investment costs, but above all else, the actual operating and maintenance costs that are crucial. Dürr considers itself a leading partner in the coating and printing industry with its complete range of exhaust air purification and energy recovery technologies.

At ICE, Dürr will be presenting information about recent developments in systems for purifying contaminated exhaust air. When combined with a Dürr heat recovery system, these solutions provide a way of returning energy to the process as heat, cooling energy or power that previously was unused.

Thermal exhaust air purification systems remove hydrocarbons, especially solvents, VOCs, odors, and plasticizers from the exhaust air in order to ensure that the official emission limits are safely adhered to. Exhaust air purification systems, based on regenerative thermal oxidation (e.g. RTO), come in different sizes and technical designs.

Image 1: Efficient exhaust air purification with
Ecopure® RTO in the coating industry

Image 2: Resource-saving exhaust air purification with
Ecopure® RTO in the production of flexible packaging

They differ, for example, in the design of the air distribution systems or the regeneration chambers. Together with LTB, Dürr offers the right exhaust air system for every printing process and can also provide tailored services to address further customer requirements, such as building site organization. For example, pre-assembled RTO systems from LTB are ideal when a short installation time is required, while an alternative, more flexible design allows the customer to involve local service.

Image 3: ROxiTHERM in compact design in the coating industry

Printing processes require hundreds of kilowatts of energy. At the same time, the solvents release a large of amount of energy during the combustion process, which is often lost as exhaust air through the stack. This energy can be recovered using a heat exchanger and directly used for machine heating or building services, such as air conditioning for the plant or supplying hot water. This significantly reduces the primary energy consumption and therefore the energy costs. The combination of a RTO and a heat recovery system transforms an exhaust air purification system into an energy supply for a more economical printing process. Dürr and LTB’s wide product range and the knowledge of their experts guarantees the most efficient solution for every application and machine fleet.


The Dürr Group is one of the world's leading mechanical and plant engineering firms with outstanding automation expertise. Products, systems and services offered by the Group enable highly efficient manufacturing processes in different industries. Dürr supplies not only the automotive industry but also other sectors such as the mechanical engineering, chemical and pharmaceutical industries, and – since the takeover of HOMAG Group AG in October 2014 – the woodworking industry. Dürr has 92 business locations in 28 countries. With 15,200 employees, the Group generated sales of € 3.57 billion in 2016. The Group operates in the market via five divisions:
• Paint and Final Assembly Systems: paintshops and final assembly systems for the automotive industry
• Application Technology: robot technologies for the automated application of paint, sealants and adhesives
• Measuring and Process Systems: balancing and cleaning equipment as well as assembly, testing and filling technology
• Clean Technology Systems: exhaust-air purification systems and energy efficiency technology
 Woodworking Machinery and Systems: machinery and equipment for the woodworking industry

Dürr Systems AG
Clean Technology Systems
Nadine Joos
Phone +49 7142 78-3283
E-mail nadine.joos(at)

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