W1006311 - Thermal Arc ArcMaster 141 AC/DC TIG/Stick Welder

Professional AC/DC TIG Capability on 115V Power

The ESAB Thermal Arc ArcMaster 141 AC/DC is a specialized inverter welding power source designed for maintenance, repair, and light fabrication applications where 115V input power is the standard. Unlike many machines in this voltage class which are DC-only, the ArcMaster 141 provides full AC/DC capabilities, enabling operators to weld aluminum alloys effectively as well as mild and stainless steels. This unit is engineered to bridge the gap between hobbyist equipment and professional industrial machines, offering advanced arc controls in a compact footprint.

Technically, the machine delivers up to 140 Amps of welding output. It features High Frequency (HF) starting for non-contact ignition in TIG modes, which is critical for preventing tungsten contamination and ensuring clean starts on aluminum. Alternatively, a Lift TIG mode is available for frequency-sensitive environments. The control panel offers digital precision, allowing users to adjust AC Frequency and Wave Balance—features typically reserved for higher-voltage industrial machines. These controls allow the welder to fine-tune the cleaning action versus penetration profile, optimizing the arc for different aluminum oxide layers and material thicknesses.

For Shielded Metal Arc Welding (Stick), the ArcMaster 141 AC/DC provides robust performance with standard electrodes. It includes Hot Start and Arc Force features to assist with arc ignition and stability. The unit's portability is a key asset for MRO professionals; weighing significantly less than transformer-based equivalents, it can be easily transported to the point of work. The package typically includes the power source, TIG torch, and necessary leads, making it a ready-to-weld solution for contractors and maintenance departments requiring versatility in a 115V package.