RAMATO 250A Transformer Based Stud Type ARC Welding Machine

Stud welding is a process by which a metal stud, also referred to as a weld stud, is joined to a metal workpiece by heating both parts with an arc. A key factor that differentiates stud welding from other fastening processes is that the fastener is attached to the workpiece without marring the other side. The transformer, housed in a welding machine, is used to convert the high-voltage input or, primary power, from the wall plug and this is usually from 208 to 600 volts, with a low alternating current (AC) from 15 to 55 amps.