ESAB Transtig AC/DC 203i Transtig AC/DC 353i is a high-performance TIG and MMA welding machine, suitable for demanding industrial applications. Employing inverter-based IGBT technology, it provides precise control and stable arc performance. The ability to adjust AC balance and frequency allows for optimization of the welding process for various materials and thicknesses. Additionally, pulse mode functionality enables better control over heat input, reducing distortion and improving weld quality.