Steinmüller Africa’s Submerged Arc Welding Ensures Clean, High-Quality Welds

Johannesburg, 28 September 2024 — Steinmüller Africa’s comprehensive fabrication offering includes submerged arc welding (SAW), a specialised technique where the welding arc is submerged under a blanket of flux powder. While SAW is an established process, Steinmüller Africa has advanced its applications, such as fabricating membrane walls for boilers. Equipped with exclusive machinery, including one of only two PEMA machines in the country and the sole Oerlikon SAW stub welding machine in South Africa, Steinmüller Africa offers fast and cost-effective fabrication solutions. The SAW process results in minimal weld repairs and improved plant uptime, addressing the energy and industrial sectors' growing demands.

High-Quality, Efficient Welding

SAW’s key advantage is the reduction of impurities by fully covering the welding arc with flux, resulting in cleaner welds. Its semi-automatic, high-speed nature minimises human intervention, making it superior to other welding methods in South Africa. Common applications include welding plates, pipes, and stub-to-header assemblies. Steinmüller Africa's fleet of boom welders and the PEMA machine's six welding heads further enhance the company’s capacity to meet diverse client needs.

Controlled and Efficient Process

Compared to manual gas tungsten arc welding (GTAW) or shielded metal arc welding (SMAW), which rely on gas and flux-coating for protection, SAW offers greater control and efficiency. With advanced consumables and cutting-edge technology, SAW is suitable for a wide range of applications. Steinmüller Africa’s expertise makes it a trusted provider for clients’ welding requirements.

Overcoming Challenges with Precision

SAW presents challenges, such as moisture absorption in the flux, which Steinmüller Africa addresses by following strict baking procedures and maintaining high standards during welding. Welding parameters are meticulously planned and monitored, with test pieces welded in some cases to guarantee quality. Skilled operators are selected based on their understanding of the SAW process, ensuring top-tier craftsmanship.

Industry Leadership and In-House Expertise

Steinmüller Africa’s successful installations at Eskom Power Stations and Sasol demonstrate its industry leadership. The company also provides in-house training for welders, ensuring compliance with all relevant standards and optimal machine operation.

Senior Welding Engineer Friedrich Schwim notes, “Steinmüller Africa is always investigating opportunities to optimise component fabrication to ensure the highest quality and cost-effectiveness. We also ensure faster manufacturing times while remaining competitive with fabrication costs in the industry.”

Press Release Submitted By:

Steinmüller AfricaSenior Welding Engineer: Friedrich SchwimWebsite: www.bilfinger.com/en/za

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