Gräbener Maschinentechnik GmbH & Co. KG

We are the global market leader in manufacturing systems for the production of metallic bipolar plates for fuel cells and electrolysers; in pipe and wind tower manufacturing with pipe forming presses, bending machines, and seam milling machines for the narrow-gap welding process; and in ship deck manufacturing systems.
The medium-sized machine manufacturer Gräbener Maschinentechnik GmbH & Co. KG develops and implements custom-designed systems and is a multiple world market leader in various niche markets:

In pipe and wind tower manufacturing, Graebener® has been the market leader for many years with its pipe forming presses, bending machines, and seam milling machines for the narrow-gap welding process.

Graebener® has also established itself as a global leader in shipbuilding with state-of-the-art equipment for deck fabrication. For example, all ship decks at the Meyer Werft shipyard in Papenburg are assembled on Graebener® equipment.

In the field of hydroforming, Graebener® is not only a pioneer but also holds the world record to this day. With a clamping force of 13,000 tons, the Siegerland-based machine manufacturer has built the world’s most powerful hydroforming press. In addition, Graebener® operates a world-class prototyping center—equipped with four hydraulic presses offering up to 10,000 tons of clamping force.

Since 2003, the company has also been conducting intensive research and development in the field of hydrogen technologies. With its patented systems for manufacturing metallic bipolar plates for fuel cells and electrolysers, Graebener® is a technology leader and also implements complete series production lines.

The company’s origins date back to 1921, when Gräbener & Comp. GmbH was founded—at that time still a factory for the production of heavy iron and sheet metal structures.