Aluminum welding requires not only power, but above all precise control of alternating current (AC). The TELWIN SUPERIOR TIG 422 AC/DC offers advanced capabilities in this regard. The AC balance control plays a key role here, allowing you to perfectly balance the cleaning phase (removal of oxides from the aluminum surface) and the penetration phase (deep penetration). This results in welds that are free of contamination and have excellent structural integrity.

Another important parameter is AC current frequency control. Higher frequencies (up to 200 Hz or more, depending on model specifications) result in a more concentrated and stable arc, which is invaluable for welding thin aluminum sheets, precision corners or making fillet welds. Lower frequencies may be preferred for thicker materials, offering a wider arc and larger weld pool. The SUPERIOR TIG 422 gives you complete control to tailor the arc characteristics to your specific task, material and thickness, guaranteeing the highest quality connections.

TIG pulse welding is a technique that is revolutionizing work with thin materials, stainless steels and other heat-sensitive alloys. The TELWIN SUPERIOR TIG 422 is equipped with advanced pulse modes, including EASY PULSE and SYN PULSE. The EASY PULSE mode automatically selects the optimal pulse parameters (frequency, base current, pulse cycle) based on the selected peak current, which greatly simplifies setup and is ideal for less experienced welders or when speed of setup is important.

For more advanced users, full manual control of pulse parameters in standard pulse mode and the innovative PULSE SYN (Synchronized Pulse) open up new possibilities. PULSE SYN often offers additional benefits, such as even better control over the weld pool, reduced distortion and the possibility of obtaining highly aesthetic welds with a distinctive “fish scale” pattern. Regardless of the mode selected, pulse welding with SUPERIOR TIG 422 means less heat input, better fusion control, especially in forced positions, and excellent results on materials as thin as less than 1 mm.

One of the key advantages of the TELWIN SUPERIOR TIG 422 is its ability to operate with both single-phase 230V and three-phase 400V power supplies. The unit automatically recognizes the mains voltage and adjusts its operating parameters to ensure optimal performance under all conditions. This feature makes it an extremely versatile tool – ideal for stationary work in a well-equipped industrial workshop (400V), as well as for mobile tasks, field service work or in smaller workshops where only 230V power is available.

Regardless of the power source, the SUPERIOR TIG 422 guarantees industrial reliability. Built with high-quality components, equipped with an efficient cooling system and advanced protection (thermal, overload, overvoltage and undervoltage), it is prepared for intensive operation in harsh conditions. The robust housing protects the internal mechanisms from mechanical damage and dust (IP23 rating). This is an investment that provides peace of mind and confidence that your tool will meet any challenge.

The TELWIN SUPERIOR TIG 422 introduces the THINSPOT function, which revolutionizes the process of tacking and TIG spot welding. This intelligent technology makes it possible to produce very fast and precise weld points with minimal heat introduction into the material. This is particularly advantageous when working with thin sheet metal, where traditional tacking methods can lead to burn-through or excessive distortion.

With the THINSPOT function, the user can precisely control the duration of the current pulse, resulting in reproducible size and quality of the tack point. The process is extremely fast, significantly increasing productivity, especially when assembling complex structures requiring multiple positioning points. Minimizing the heat-affected zone is another key advantage, which reduces internal stresses and material distortion, facilitating further stages of basic welding and ensuring a higher quality final product. This feature is invaluable in industries such as the manufacture of thin-walled tanks, body components or precision stainless steel structures.