RPM ↔ Surface Speed Converter

Welders care about travel speed at the joint, not table RPM. Convert between the two for your part diameter and check it against the ABOKE 0.03–30 RPM band.

Typical targets: manual MIG/TIG ~150–400 mm/min; automated submerged-arc (SAW) up to ~1,500 mm/min. Surface speed = RPM × π × diameter, so the same RPM gives very different travel speed at different diameters.