Escher Wyss & Cie.

Escher Wyss & Cie., also known as Escher Wyss AG, was a Swiss industrial company with a focus on engineering and turbine construction. Its headquarters were in the Zürich quarter of Escher Wyss, which takes its name from the company.

Escher Wyss AG
Fate(incorporated in Sulzer)
ProductsNaval, railway, aviation mechanics; hydraulic turbines, pumps, motors
The Escher Wyss plant in Zürich in 1930
Escher Wyss's former Schiffbau or shipbuilding hall in Zürich now functions as a cultural centre.
Share of the AG der Maschienfabriken Escher Wyss & Cie, issued 1. April 1912


The company was founded, as Escher Wyss & Cie., in 1805 by Hans Caspar Escher and Salomon von Wyss. After having originally started the company as a textile spinning business, the two expanded their enterprise to include a machine shop that manufactured textile machinery, water wheels, water turbines, power transmission equipment, and starting in 1835, ships, including boilers and steam engines.[1]

After 1860, under the direction of Hans Zoelly, the company concentrated on hydraulic systems, steam engines and cooling systems. Between 1904 and 1929 steam turbines were produced for thermal power plants, ships and locomotives. The company also manufactured the hydraulic systems of hydroelectric plants. During WWII, the company was a supplier for the German war effort, manufacturing turbines for Norsk Hydro,[2] and supplying flamethrowers.[3] Additionally, the company was an integral part of researching and developing turbines to produce heavy water for the creation of nuclear weapons for the Nazis.[4] The company remained in existence until it was taken over in 1969 by Sulzer AG,[1] now inside of the group Andritz AG.

Notable productsEdit

See alsoEdit


  1. ^ a b "Escher Wyss & Cie". Historical Dictionary of Switzerland (in German). Retrieved 2011-09-30.
  2. ^ "NORWEGIAN INDUSTRIAL WORKERS MUSEUM WORLD HERITAGE SITE". Council of Europe, European Route of Industrial Heritage. Retrieved 2021-04-23.
  3. ^ "Military Agency Records RG 226". National Archives, Holocaust-Era Assets. Retrieved 2021-04-23.
  4. ^ "Norwegian Industrial Workers Museum World Heritage Site". European Route of Industrial Heritage. Retrieved 25 May 2022.
  5. ^ "Powered by Boiling Petrol". Museum of Retro Technology. Retrieved 2011-10-03.
  6. ^ "Geschichte der Zürichsee Schifffahrtsgesellschaft" [History of Lake Zurich shipping company] (in German). ZSG. Retrieved 2011-09-26.
  7. ^ "A-Objekte KGS-Inventar". Schweizerische Eidgenossenschaft, Amt für Bevölkerungsschutz. 2009. Archived from the original on 2010-06-28. Retrieved 2015-01-05.