“WELSON” Rocker ARM pedal operated spot welding machine are offered in 8, 10, 12, 15, 20 and more KVA models. The Rocker ARM allows for the consistent and accurate application of pressure, which is essential in creating a quality weld joint. A foot pedal is used to control the movement of the electrodes. This welder is an efficient, durable and user-friendly machine that offers precision and control.