Witzenmann-Gruppe

Witzenmann-Gruppe is a corporate group that describes itself as an independent family business. Originally founded in 1854 as a jewellery firm, it invented the flexible metal hose in 1885 and has since become a development partner to customers in the automotive, industrial and aerospace industries. The group states that it offers the world's widest product range of flexible metal hoses, expansion joints, metal bellows, pipe supports and automotive components, and that its HYDRA® brand, registered in 1899, is one of the oldest active brands in Germany.

Witzenmann-Gruppe was originally founded as a jewellery firm. In 1854, Heinrich Witzenmann founded a jewellery factory together with Louis Kuppenheim; by 1861 the company had 60 employees and was one of the leading companies in Pforzheim, known as 'The City of Gold'. In 1877, another jewellery factory was founded in Paris together with Eugène Levavasseur. In 1885, taking the manufacturing principle of the goose throat necklace as the starting point, Heinrich Witzenmann and Eugène Levavasseur developed the flexible metal hose, which was patented in France and Germany in August 1885. Heinrich Witzenmann was already 60 when he gave up his successful jewellery manufacturing business to concentrate fully on the new business segment. Witzenmann subsequently developed all of the important profiles that are still technically relevant to the manufacturing of hoses today. In 1899, the company registered the HYDRA trademark; HYDRA was chosen because the sturdy flexible metal hoses were reminiscent of this mythological creature, and today HYDRA is the name behind a wide variety of industrial products and one of the oldest active brands in Germany.

Independent family business and engineering development partner for the automotive, industrial and aerospace industries.

• HYDRA® Flexible Metal Hoses

  Two basic types: pressure-tight corrugated hoses and stripwound hoses; corrugated hoses are described as annularly corrugated or spirally corrugated depending on the manufacturing process.

• HYDRA® Expansion Joints

  Axial, universal, lateral and angular rotation stainless steel expansion joints for pipeline construction, plant engineering and construction and apparatus engineering; nominal diameters DN 15 - 3000, nominal pressures PN 1 - 63.

• HYDRA® Metal Bellows

  Available as corrugated bellows and edge welded bellows; media, temperature and corrosion resistant, leakproof, pressure resistant and flexible, single-ply and multi-ply.

• HYDRA® Pipe Supports

  Solutions for bearing and guiding pipelines, including constant hangers, spring hangers, roller bearings, slide bearings and fixed bearings.

1. 1Flexible metal elements - as piece production or in serieswitzenmann.com
2. 2Historywitzenmann.com
3. 3Guiding corporate principleswitzenmann.com
4. 4Productswitzenmann.com
5. 5Witzenmann-Gruppewikidata.org