Abstract: A continuous thru-wire welding machine for welding a conductor to a terminal comprising a stationary support, first and second elongate arms having known weights, a pair of flexible plates for pivotally connecting first ends of each of the first and second arms to the stationary support with the arms being positioned in parallel, spaced, vertically aligned relationship, an electrode housing, a pair of flexible plates for connecting second ends of the first and second arms to the housing, a first conductive electrode mounted within the housing, the terminal being positionable below the electrode, and a structure for releasably supporting the arms with the first electrode spaced from the terminal, the supporting structure being adapted to release the arms whereby the weight of the arms moves the first electrode into contact with the terminal, the weight of the arms determining the force applied by the first electrode to the terminal.