Siepmann

Siepmann is a German industrial concern headquartered in Warstein, North Rhine-Westphalia, whose modern operations are rooted in the steel-processing and forging business established under the Siepmann name in 1891. The group operates from the industrial site in Belecke, where production was moved in the early twentieth century and where its activities remain associated with the Emil-Siepmann-Straße location. Historically, the company developed from a regional manufacturer of agricultural tools and sheet-steel goods into one of Germany's important drop-forging suppliers. The business originated in an earlier enterprise founded in 1834 by Wilhelm Bergenthal and Ferdinand Gabriel. That predecessor produced shovels and other sheet-steel products and became a significant local employer. Following financial difficulties, Louis Peters took over the enterprise in 1891. Peters placed much of the day-to-day technical and commercial management in the hands of his brothers-in-law Emil and Hugo Siepmann. The company initially traded as Peters & Cie.; the Siepmann brothers acquired the business in 1910 and established the family-controlled industrial identity that later became Siepmann-Werke. During its early decades, the company manufactured shovels, spades, forks, lattice spikes and other forged or pressed metal products, serving agricultural and bicycle customers. It entered automotive supply in 1916 and subsequently supplied components to German vehicle manufacturers including Mercedes-Benz, BMW and Adler, according to the historical account associated with the company. From 1917 onward, it also received substantial government armaments orders. Welding and forging capabilities were expanded during the 1920s, including production for the Deutsche Reichsbahn and reparations-related orders after the First World War. The Great Depression caused a severe contraction. The older Warstein works closed in 1930, with facilities consolidated at Belecke, and the workforce fell to roughly 80 people in 1932. Electrification and later process investments nevertheless laid the foundation for renewed growth. By the late 1930s, Siepmann had developed into one of Europe's modern drop-forging operations, with a dedicated gas-production system and a large production line combining counterblow hammers, presses and furnaces. The company expanded dramatically during the Second World War as a supplier to the German armaments economy. It produced forged military components, including armored-vehicle track links, and its workforce and output rose sharply. The wartime record also includes the use of prisoners of war and forced laborers from occupied countries, including Soviet, French and Italian workers. This aspect is an important part of the company's history and requires careful interpretation within the wider context of Nazi Germany's forced-labor system. After 1945, parts of the plant were dismantled, but the business rebuilt its industrial base and employed approximately 1,300 people by 1960. A serious plant explosion in March 1963 killed 20 employees and injured many others. Under the second generation of family leadership, the concern diversified and expanded, notably through the creation of PERSTA-Stahlarmaturen, a manufacturer of industrial valves and fittings. In the 1970s, Walter Siepmann Sr. consolidated control of the group, while the family also benefited from industrial patents used internationally. Today, Siepmann's principal activities include drop forging, steel components, industrial valves, precision machining and related investment or trading businesses. Its customers and application sectors include railway equipment, wind power, heavy-duty machinery, marine systems, construction equipment, mining, production machinery and industrial valve applications. Key associated companies and divisions identified in the reference material include Siepmann-Werke GmbH & Co. KG, PERSTA Stahlarmaturen GmbH & Co. KG, SD Machining GmbH and VALTRA Armaturenhandels GmbH. The concern remains privately held and family controlled. In 2014, management passed from Walter Siepmann Jr. to the fourth generation, with Korinna Schwittay becoming group chief executive.

Siepmann's industrial history reaches back to a sheet-steel and toolmaking enterprise founded in the Warstein area in 1834 by Wilhelm Bergenthal and Ferdinand Gabriel. The predecessor business grew quickly and employed hundreds of people by the 1850s. After financial problems, Louis Peters took control in 1891. His brothers-in-law Emil and Hugo Siepmann assumed the principal technical, commercial and sales responsibilities, and the business became associated with the Peters & Cie. name before ownership passed to the Siepmann brothers in 1910. The early Siepmann business manufactured shovels, spades, agricultural forks, lattice spikes and related metal goods. A new site near the Belecke freight depot was acquired in 1909, providing better access to rail transport. The company broadened into automotive components in 1916 and entered government armaments production in 1917. During the 1920s it adopted newer welding methods and produced components for the Deutsche Reichsbahn and reparations-related customers. Employment reached more than 400 by 1927 before the Great Depression sharply reduced orders. The Warstein plant was closed in 1930 and production was consolidated in Belecke. By 1932 the workforce had fallen to about 80, but investments in electricity, forging equipment, furnaces and gas production modernized the operation. By the late 1930s Siepmann-Werke was described as one of the region's most important employers and among Europe's modern drop-forging facilities. A production line installed in 1938 combined counterblow hammers, presses and furnaces and supported the company's growing role in German rearmament. The Second World War brought rapid expansion. Production volumes increased many times over, and the workforce reached several thousand. Siepmann became a major producer of forged military parts, particularly armored-track components. The company also used prisoners of war and forced laborers from occupied territories. This wartime labor history is a serious and integral part of the company's record, reflecting the coercive labor system of Nazi Germany. After the war, Allied dismantling affected the works, but the company rebuilt and again expanded employment. The workforce reached approximately 1,300 in 1960. A fatal industrial explosion in March 1963 killed 20 employees and injured others. During the following decades, the group developed beyond general forging. The establishment and growth of PERSTA-Stahlarmaturen added industrial valves and fittings, while further technical development and patents supported diversification into specialized industrial supply. Leadership during the postwar period included Walter Siepmann Sr., Alfred Siepmann and Ernst L. Siepmann. Walter Siepmann Sr. later consolidated ownership. The concern continued under family control, with descendants of Emil Siepmann retaining a minority interest. In 2014 Walter Siepmann Jr. handed management to the fourth generation, and Korinna Schwittay became chief executive after a prior executive career at BASF. The present group is organized around industrial companies and investment entities. Its activities include Siepmann-Werke's forged steel products, PERSTA valves, SD Machining and VALTRA Armaturenhandels. Its end markets include railways, wind energy, heavy machinery, marine applications, construction equipment, manufacturing and mining. The group remains based in the Warstein-Belecke area and continues to operate as a privately controlled industrial concern.

• 2014

  Fourth-generation management transition

  [1]Siepmannen.wikipedia.org

  Korinna Schwittay became chief executive as management passed from Walter Siepmann Jr. to the fourth generation.

• 1970

  Ownership consolidation under Walter Siepmann Sr.

  [1]Siepmannen.wikipedia.org

  After the death of his brother, Walter Siepmann Sr. acquired control of the concern.

• 1963

  Fatal factory explosion

  [1]Siepmannen.wikipedia.org

  An explosion at the works killed 20 employees and caused numerous injuries.

• 1944

  Wartime production reaches a peak

  [1]Siepmannen.wikipedia.org

  Drop-forging output reached its wartime high, while the Belecke works expanded substantially in area and workforce.

• 1938

  Integrated forging line installed

  [1]Siepmannen.wikipedia.org

  The company installed a German production line combining counterblow hammers, presses and associated furnaces for forged parts.

• 1930

  Production consolidated in Belecke

  [1]Siepmannen.wikipedia.org

  The older Warstein plant was closed and production was moved to the newer Belecke facility.

• 1927

  Workforce exceeds 400

  [1]Siepmannen.wikipedia.org

  Expansion in railway, automotive and metalworking orders brought employment above 400 before the Depression.

• 1916

  Entry into automotive supply

  [1]Siepmannen.wikipedia.org

  Siepmann began supplying forged or pressed components to the German automotive industry.

• 1910

  Siepmann brothers become owners

  [1]Siepmannen.wikipedia.org

  Emil and Hugo Siepmann acquired the business and formally established family ownership.

• 1909

  New Belecke industrial site acquired

  [1]Siepmannen.wikipedia.org

  The company purchased land near the Belecke freight depot and began developing a new factory linked to the railway network.

• 1891

  Peters takes over the business

  [1]Siepmannen.wikipedia.org

  Louis Peters acquired the financially troubled predecessor company, beginning the ownership transition associated with the Siepmann family.

• 1834

  Predecessor enterprise established

  [1]Siepmannen.wikipedia.org

  Wilhelm Bergenthal and Ferdinand Gabriel established the industrial predecessor of the later Siepmann concern in the Warstein area.

A family-controlled German industrial supplier positioned around heavy-duty forged steel, engineered components, industrial valves and machining for technically demanding sectors.

• Metalworking

  Drop-forged steel components

  Siepmann-Werke produces forged steel components for demanding industrial applications. Historically, the business evolved from agricultural tools into automotive, railway, heavy-equipment and armaments forgings. Current applications identified for the group include railway systems, wind power, marine equipment, construction machinery, mining and other heavy-duty production environments.

• Industrial valves

  PERSTA industrial valves

  PERSTA Stahlarmaturen is the group's valve and industrial-fittings arm. It manufactures and supplies steel valves and related products for industrial systems, including applications associated with energy, heavy industry, marine equipment and process machinery.

• Machining

  Precision-machined components

  SD Machining provides machining capabilities within the wider Siepmann group. The division supports the production of engineered metal components that require finishing, dimensional accuracy and integration with forged or cast industrial parts.

• Industrial distribution

  Industrial valve distribution

  VALTRA Armaturenhandels GmbH is identified as an associated valve-trading and distribution business. Its role complements the group's manufacturing operations by supporting the commercial supply of industrial armatures and related equipment.

• 1943

  Use of forced labor during the Second World War

  The wartime Siepmann works employed prisoners of war and forced laborers from occupied countries, including Soviet, French and Italian workers. The use of coerced labor formed part of the company's wartime armaments production and should be understood within the broader forced-labor system imposed by Nazi Germany.

  Source

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• 2014

  Transfer to fourth-generation managementOther

  Background

  After a period led by Walter Siepmann Jr., the family-owned group prepared a generational change in management.

  Action taken

  Korinna Schwittay assumed the chief executive role.

  Aftermath

  The group continued under family control while retaining its diversified industrial structure.

  Source

• 1938

  Installation of an integrated forging production lineProduct launch

  Background

  Growing demand for large volumes of forged components required higher productivity and more integrated manufacturing.

  Action taken

  The company installed a line combining counterblow hammers, presses and associated furnaces.

  Aftermath

  The investment strengthened Siepmann's position as a modern European drop-forging supplier and supported its expanding role in German rearmament.

  Source

• 1930

  Consolidation of manufacturing operationsStrategy

  Background

  The Great Depression sharply reduced demand and employment, while maintaining multiple plants became difficult.

  Action taken

  Siepmann closed the older Warstein works and concentrated production at the newer Belecke facility.

  Aftermath

  The consolidation enabled later investment in electrical power, forging equipment and process technology, supporting renewed growth during the 1930s.

  Source

1. 1Siepmannen.wikipedia.org