The Arc-400 is a lightweight stud welding system capable of welding studs with full base diameters as large as 5/16". The power supply operates on three-phase power, producing a smooth and stable weld arc. The continuously adjustable weld time allows for special short cycle welds to thin base metals as well as longer cycle welds to thicker base metals.
State of the art circuitry within the gun protects the unit from faults. The circuit will prevent a shorted gun solenoid or a faulty control cable from retriggering the gun or damaging the circuit boards. The Arc-400 is one of the most reliable Arc stud welders in the business.