SMAW — Shielded Metal Arc Welding

MMA

The most versatile and rugged process: arc welding with a coated electrode. It needs no gas, works outdoors and bites through dirty or rusty steel. The standard for maintenance, structures and fieldwork.

Try it in the simulator
Live arc · MMA130 A
130 AIdeal

Sweet spot: stable arc, proper fusion and a uniform bead.

Key features
01No gas

The electrode coating creates its own shielding. Ready for outdoors and wind.

02HOT START

A strong strike that stops the electrode sticking when the arc starts.

03ARC FORCE

Dynamic adjustment that keeps the arc alive on tough beads and awkward positions.

04ANTI-STICK

Cuts the current if the electrode sticks, protecting it and preventing overheating.

Typical applications

Coated electrode, no gas

  • Structures and metalwork
  • Industrial maintenance
  • Construction and fieldwork
  • Carbon steel repair