TIG AC welding of aluminum requires special control over the welding arc to effectively remove the oxide layer and ensure proper fusion. The TELWIN SUPERTIG 302 AC/DC offers advanced features dedicated to this task. Key here is the AC current balance control, which allows you to precisely set the ratio of positive half-wave (cleaning) to negative half-wave (penetration) duration. This allows the welder to optimize the process, achieving a clean, shiny weld with excellent fusion, while minimizing tungsten electrode wear.

Another important parameter is the AC current frequency control. A higher frequency results in a narrower, more concentrated arc, which is advantageous for welding thin aluminum sheets and for fillet welds where precision is key. The SUPERTIG 302 AC/DC allows infinite adjustment of this frequency, giving the welder full control over the geometry of the arc and weld pool. Combined with the TIG Puls function in AC mode, masterful results can be achieved even on the most demanding aluminum alloys.

The TELWIN SUPERTIG 302 AC/DC is equipped with a number of intelligent TIG features that streamline your work and improve the quality of the connections you make. In addition to standard settings, such as pre-gas and post -gas adjustments that protect the weld pool and electrode from oxidation, the device offers full control over the welding cycle. The ability to set the starting current, slope-up time, welding current, crater current, slope-down time and end current allows for perfect start and finish of the weld, eliminating defects such as cracks or craters.

The Bi-Level function allows you to quickly switch between two different welding current levels using a button on the handle, which is extremely useful when welding materials with varying thicknesses or when changing welding positions without interrupting the arc. In addition, the advanced TIG Puls mode with adjustable pulse frequency, base current and pulse fill factor, allows precise control of the arc’s linear energy. The result is a smaller heat-affected zone, reduced material distortion and the ability to produce aesthetically pleasing welds with a scaly surface, especially appreciated in stainless steel welding.

TELWIN SUPERTIG 302 AC/DC is a device designed for intensive use in industrial conditions. Robust construction and high-quality components guarantee long life and reliability. The device is equipped with a number of thermal and surge protections that protect it from damage in the event of an overload or instability of the power supply. A cooling system with a powerful fan that is activated when needed ensures optimal working conditions for internal components, even during prolonged welding with high current.

In addition, the welder offers features that enhance welder safety and comfort. HF non-contact ignition eliminates the need to touch the electrode to the material, which minimizes the risk of contamination of the weld and the electrode. In the case of MMA welding, Hot Start functions facilitate arc ignition by momentarily increasing the current, Arc Force (arc dynamics) stabilizes the arc and prevents it from extinguishing, and Anti-Stick prevents the electrode from sticking to the material. These solutions not only make work easier, but also contribute to its safety and efficiency.

With a wide range of welding current adjustment, the ability to operate in AC and DC modes, and advanced TIG and MMA functions, the TELWIN SUPERTIG 302 AC/DC is an extremely versatile tool. It will perform well in the automotive industry for repairing and modifying aluminum bodies and stainless steel exhaust systems. In the food and chemical industries, it will enable precise welding of pipelines and tanks made of acid-resistant steel, where smoothness and cleanliness of welds are crucial.

In steel and aluminum structures, this welder will allow you to make solid and aesthetically pleasing connections, both in the workshop and at the assembly (with an adequate power source). It is also an excellent tool for craftsmen and artists working with metals, allowing them to complete complex projects with the utmost precision. Whether you’re doing fabrication, service or maintenance work, the SUPERTIG 302 AC/DC will deliver the power and control you need to get the job done at the highest level.