Constructions en acier  Producteurs, Vendeurs, Fournisseurs

KÖSTER is a welding company.
We weld certified according to DIN EN ISO 1090-2, up to design class EXC3 (dynamically stressed components). Accordingly, we hold the EU certificate of "in-house production control for load-bearing steel components" up to this design class. We monitor the quality of our welding work and are certified according to DIN EN ISO 3834-2.
We have designed and built the first passenger transport winch on the European market according to the new Machinery Directive 2006/42/EC (2nd edition June 2010).
Our electric and hand winches have an EC type examination.
Our foundry has been approved as a material manufacturer and is certified accordingly, e. g. by

• DNV GL and Bureau Veritas (BV) for spheroidal graphite cast iron (EN-GJS) and grey cast iron (EN-GJL)
• Lloyds Register (LR) for spheroidal and grey cast iron

The Stahlbau GmbH Heenemann & Sohn deals now in its fourth Generation of steel components !
Steel structure steel buildings steel silo tank stainless steel railing steel housing
As before, the company is a family business. The workforce consists of approximately 40 employees including highly qualified engineers, technicians and skilled workers with years of experience in welding assemblies, CNC sheet metal processing (metal processing), tin special design, laser sheet metal processing, Formstückbau, apparatus, pressure vessels, silos, masts, steel stairways, steel buildings and other Steel structures.

We offer the latest technology in mechanical engineering and steel structures from our headquarters in northern Saxony in Germany. From planning, design, manufacturing to installation and maintenance - everything from a single source. Our focus is on systems and special systems for gravel pits and quarries, i.e. plants for the extraction of various types of rock such as basalt, limestone, granite, gravel, volcanic rock and other raw rocks through coal mining, ship, truck and train loading facilities. Our materials handling technology is exemplary. Our delivery markets for this technology are Europe and North Africa. For regional clients we also have an interesting offer in the field of steel structures, pumps service as well as mineral oil distribution in the region of Torgau Oschatz in the German Federal State of Saxony.