- 1954 – Founding of Concast AG in Zürich Irving Rossi and Dr. Heinrich Tanner with the aim was to launch the new continuous casting technology on the European market. This earned Rossi his place in history: he was the first person to transfer the casting process from non-ferrous metals to steel. Plant operators were thus able to achieve considerably better productivity than before – a revolution in the steel industry in the middle of the 20th century.
- 1955 – Collaboration with Mannesmann on development of continuous casting.
- 1956 – First straight mold continuous casting system.
- 1963 – First curved mold continuous casting system.
- 1965 – Schloemann becomes shareholder of Concast AG.
- 1966 – First beam-blank caster.
- 1973 – Schloemann merges with Siemag to form SMS Schloemann-Siemag. Concast continues specializing in casters for billets and long products.
- 1981 – Dr. Heinrich Tanner, the long-time managing director, took over the spin-off “Concast Standard AG” because large plant engineering companies showed limited interest in the billet caster market. Tanner held 30% of the shares, while SMS held 70%. With leadership from the founding directors, the company quickly gained momentum by leveraging Concast’s existing know-how, engineering resources, and patents for billet casting machines.
- 1990 – Birth of CONVEX technology, enabling higher casting speeds than competitors.
- 2004 – SMS Holding takes over 100 percent of the Concast shares. Concast was assigned complete responsibility for steelworks and continuous casters for long products.
- 2004 – Commissioning of the world’s first billet caster with Mechanical Soft Reduction (up to 200 x 200 mm).
- 2007 – Commissioning of the world’s first bloom caster with Mechanical Soft Reduction (370 x 510 mm).
- 2008 - Commissioning of the world’s widest beam blank section 1,150 mm; first DMSR plant for blooms.
- 2009 – Concast is renamed SMS Concast.
- 2010 – Commissioning of the world’s largest bloom caster (400 × 500 mm).
- 2012 – Commissioning of the world’s largest round bloom Ø 800 mm.
- 2014 – Commissioning of high-speed mold INVEX technology (including direct charging to rolling mill) for billets (150 × 150 mm at 5.6 m/min).
- 2014 - Commissioning of the world’s largest vertical bloom caster (610 × 460 mm).
- 2015 – SMS Concast becomes SMS Group’s Center of Competence for Continuous Casting of Long Products.
- 2016 – Biggest continuously cast round bloom. The new three-strand caster for big blooms of up to Ø 1,000 mm with a radius of 18 m by SMS Concast sets a milestone in steel production history.
- 2016 – Development of CONDRIVE, an electric direct oscillation drive. It features an adjustable stroke and frequency during casting, which can generate not only sinusoidal waveforms but also continuous sawtooth curves.
- 2021 – Development of vertical semi-continuous (VERSCON) caster.
- 2023 – Commissioning of a high-speed billet caster with throughput > 1,000 kg/min/strand.
- 2024 – Commissioning of the new world’s largest round bloom Ø 1,320 mm.
- 10/2025 – Commissioning of the first CMT® minimill, an endless casting and rolling process, supported by CONREX mold technology, delivering a throughput of 550,000 t/y.
- 12/2025 – Project award for the world’s largest curved bloom caster with Mechanical Soft Reduction (450 x 530 mm).