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Söhner Kunststofftechnik GmbH, Industriestrasse 29, 74193 Schwaigern, Germany

T +49 7138 812-200
F +49 7138 812-520
E info(at)

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Quality and environment

Certified processes for sustainable success.

Quality as our top maxim.

At SÖHNER Kunststofftechnik, quality has top priority. For us, this means that our customers are satisfied and their expectations can be permanently fulfilled. Here, an element component is a continuous improvement process (CIP) that comprises all areas of our company. This includes an internal quality management that regularly checks, questions and improves the processes and sequences in our company. Since 2001, our quality management system has been certified according to DIN EN ISO 9001.

Acting in an environmentally conscious manner.

In addition to quality assurance, we are also conscious of our responsibility for the environment and society. This can be seen not only in our production procedures through the observance of the valid environmental regulations and a careful handling of raw materials and energy. We also observe this responsibility by developing products that lead to continuous savings in use. Our efforts have been certified according to the ISO 14001 environmental standard since 2008 and according to the ISO 50001 energy standard since 2013.

Our 1-megawatt photovoltaic plant, which covers the majority of our electrical current requirement, makes a considerable contribution to the sustainability of the energy supply. In addition, all our machines, like compressors, are equipped according to the latest standard for heat recovery. Additionally required heating energy is taken from the exhaust heat of a local biomass power plant. Our heating oil consumption for the generation of heat could thus be reduced by approx. 95 percent.


Our headquarters and production site in Schwaigern are certified according to the following standards:

Quality management according to DIN EN ISO 9001

Environmental management according to DIN EN ISO 14001

Energy management according to DIN EN ISO 50001