W1006301 - ESAB ET 186i AC/DC TIG/Stick Welding System

Professional AC/DC TIG Welding Precision

The ESAB ET 186i AC/DC is a high-performance multi-process welding system designed for the rigorous demands of professional fabrication and maintenance. Engineered to deliver crisp, stable arcs across a variety of materials, this inverter-based power source excels in both GTAW (TIG) and SMAW (Stick) processes. Its core strength lies in its advanced AC/DC capabilities, allowing operators to weld aluminum, non-ferrous alloys, stainless steel, mild steel, and chromoly with exceptional control.

Advanced Aluminum Control

For aluminum applications, the ET 186i offers sophisticated wave shaping tools typically found in larger industrial machines. The Adjustable AC Frequency allows the operator to vary the frequency from 15 Hz to 150 Hz; higher frequencies focus the arc for narrow weld beads and better directional control, while lower frequencies broaden the puddle. Additionally, the Wave Balance Control enables fine-tuning of the cleaning action versus penetration, ensuring high-quality welds on oxidized aluminum surfaces without compromising structural integrity.

Pulse and Arc Performance

Heat management is critical when working with thin gauge materials. The ET 186i features a built-in Pulse Welding mode, adjustable from 0.5 Hz to 200 Hz. This function alternates between high and low currents, reducing overall heat input to prevent burn-through and distortion while maintaining penetration. For arc ignition, users can choose between HF (High Frequency) Arc Start for non-contact initiation—crucial for preventing tungsten contamination—or Lift TIG Start for environments where HF interference is a concern.

Rugged and Portable Design

Weighing in at just 48.4 lbs, the ET 186i is built for portability without sacrificing durability. The unit is housed in an enclosure meeting IP23S standards, making it suitable for outdoor use and resistant to moisture and dust ingress. Whether you are in the workshop or out in the field, the digital meters provide clear visibility of voltage and amperage, with preview and hold capabilities to ensure your parameters are set correctly before you strike an arc.