PERFECT arc® is a fully digital welding technology developed by SMS group for pipe and tube production. It uses a digital current source instead of conventional thyristor systems, enabling precise, real‑time control of the welding arc during ignition, welding, and stopping. This results in a highly stable arc, excellent weld seam quality, and improved pipe properties. With an electrical efficiency of over 90%, PERFECT arc® reduces energy consumption by more than 30%. The technology also increases productivity, with up to 50% faster tack welding and around 20% faster submerged‑arc welding, making it ideal for modern, energy‑efficient welding plants.
Customer challenges addressed
- A ‘perfect arc’ that reacts quickly and can be precisely controlled at any time thanks to a fully digitalized current source instead of thyristor current sources
- 50 % quicker with tack-welding and 20 % faster with submerged-arc welding
- Energy costs can be reduced by more than 30 %
- Electrical efficiency ≥90 % with uniform load on electricity network