A SMAW/MMA Welding machines or a manual arc welder is an electronic welding machine that uses arc welding with heat generated by the arc between a sheathed welding rod and the solder. The shielding gas is generated from the decomposition of the welding rod sheath when it is burned during the welding process. SMAW/MMA Welding machines are widely used from small workshops to large construction sites. Portable stick welding machine is extremely convenient during use.