We applied the technology developed for hermetic sealing to precision spot welding and got dramatic results. The precise control of current and force by the Accu-Weld Spot Welder delivers better yields than other spot welders. Available with AC or +/- DC current, the Accu-Weld Spot Welder can weld a wide variety of part sizes and materials including wire welding. It is easy to use and competitively priced for a lower initial investment. Microprocessor Control with key pad entry and LED read-out Power Supply available in 1.0 KVA, 3.5V or 7.5 KVA, 7V Electrical service requirement: 220V, 20 AMP, Single Phase Throat Depth: 2.5" to 4.5"