Group of companies

Using their expertise, the group develops lines to meet your exact needs – all over the world. To keep all components of the entire system at the leading edge of technology requires continuous development and comprehensive expertise.


ATH Logo 300pxATH Altonaer-Technologie-Holding GmbH

ATH Altonaer-Technologie-Holding, Hamburg, is a management holding company. Since 2002 it unites three medium-sized mechanical engineering companies under one roof: KROENERT, Coatema und DRYTEC. The companies of the group are active in the areas of coating, drying, humidifying and drive systems and they have evolved continuously – partly since over 100 years – by creating existing technologies as well as innovations. The shares of ATH Altonaer-Technologie-Holding GmbH are held by foundations.




For more than 110 years the company has been firmly rooted in the mechanical engineering sector. At KROENERT in Hamburg, machines and lines for the laminating and coating of flexible substrates such as paper, cardboard, polymer films, metal foils and textile materials, are produced.



Drytec logo 300x53trans DRYTEC Trocknungs- und Befeuchtungstechnik GmbH & Co KG

DRYTEC has been specialist partners in the drying, humidification and UV curing of web materials since their founding in 1996. All KROENERT lines are fitted with DRYTEC equipment.



Coatema logo 500px RGBCOATEMA Coating Machinery GmbH

For more than 40 years the innovative equipment manufacturer from Germany provides flexible and efficient lab2fab solutions for coating, printing and laminating. Our business strategy and value proposition has been focused on innovations for growing markets with new coating technologies requirements, such as printed electronics, sustainable packaging, membranes, renewables and medicine. Our product portfolio covers the full range from tabletop solution up to production lines. In our 1200 sqm R&D center our customers can perform basic research, process development and the production of pilot and small production quantities, using 13 different machine platforms with over 20 application systems.

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