Founded in 1834 in Winterthur, Switzerland, the company has been developing pumps for industrial applications since 1860. Sulzer also concentrates on the manufacture of complex rotating components as well as on separation, mixing and application technologies. With 180 production and service locations worldwide and 16,500 employees, the company works closely with its customers and takes innovative approaches to manufacturing, as demonstrated by the acquisition of a LASERTEC 65 3D hybrid (NEW: DED hybrid) from DMG MORI. Sulzer has been setting new standards in the manufacture of impellers using laser metal deposition since 2018.
Blade wheels are among the most heavily stressed components in pumps designed by Sulzer. Particulates in the liquids and acids can cause enormous wear. Nevertheless, the components are designed for a service life of 20 years. “The systems work much longer, however,” explains Robin Rettberg, who is responsible for manufacturing technologies at Sulzer. “If an impeller like this has to be replaced, our customers need a spare part quickly.” As these are mostly custom-made products, the company is unable to simply rely on its stocks.