Arc Welding Equipment

What is MMA Welding?

The acronym MMA (or MMAW) stands for Manual Metal Arc Welding. ‘Manual’ refers to the fact that the MMA process requires the operator to apply filler metal (in contrast to MIG ‘semi-automatic’ welding where the machine feeds the filler metal into the weld). ‘Metal’ refers to the fact that the filler metal itself (the stick electrode) is used to conduct the welding current to the job. MMA welding is commonly known as ‘stick-electrode’ or ‘arc’ welding.

The MMA process involves the electrode being touched on the job to ignite the arc. The electrode is held in the electrode holder and must be continually replaced as it is consumed. The electrode consists of a metal core, which is the filler metal, covered by a flux coating which shields the weld and prevents it from oxidising. During welding the flux forms into a slag coving the weld which is chipped off after the weld has formed.

Browse this section from our range of Manual Metal Arc (MMA) welding machines and electrodes from Manufacturers such as Lorch, Miller, Esab, TBI, Parweld, SWP and Jasic to name a few.