Category: Bench Welders

At 16-25 kVA, these single-phase AC bench welders are sized for thin gauge sheet metal, wire crossing applications, and light assembly welding where power requirements are modest and single-phase electrical supply is the standard. Simple controls, straightforward setup, and a compact footprint make these machines the practical choice for prototyping, toolrooms, small fabrication shops, and any production station where the welding demand is light and the priority is dependable, low-maintenance operation.

The 32-63 kVA AC range serves the middle tier of bench welding applications – thicker gauge materials, higher weld frequencies, and production environments where the machine is running more consistently through the shift. These machines deliver meaningfully greater welding current and electrode force compared to the 16-25 kVA class, opening up a broader range of materials and part geometries while maintaining the bench-mounted form factor.

The high end of the AC bench welder range, 63-150 kVA machines deliver industrial-scale welding power from a bench-mounted platform. These units are built for applications that demand heavy electrode force, high welding current, and sustained duty cycles on thicker or higher-conductivity materials. If the application requires this level of power but floor space constraints or installation logistics make a full pedestal machine impractical, the 63-150 kVA bench welder provides the solution.

MFDC technology converts three-phase AC input power to medium-frequency DC at the welding transformer, operating typically between 1,000 and 4,000 Hz. At these frequencies, the transformer’s magnetic core can be made dramatically smaller and lighter than an equivalent 50/60 Hz AC unit. Beyond the physical benefits, MFDC current control is inherently more precise: current rise and fall times are faster, weld time increments are finer, and the DC waveform eliminates the half-cycle asymmetry inherent in AC welding. The practical result is more consistent weld quality, better performance on aluminum, coated and galvanized steels, lower energy consumption per weld, and the ability to weld thinner materials with less distortion.