TIG AC welding of aluminum requires precise control over arc parameters to effectively remove the oxide layer and achieve deep fusion. The TELWIN SUPERTIG 302 AC/DC offers advanced capabilities in this regard. A key feature is the AC balance adjustment, which allows you to adjust the ratio of positive (cleaning) and negative (penetration) half-wave durations. This allows you to optimize the process for both clean and more contaminated surfaces, achieving a perfectly clean and durable weld.

Another important parameter is the AC current frequency control (usually in the range of 20-200 Hz). Higher frequency results in a narrower and more concentrated arc, which is ideal for precision welding of thin sheet metal, minimizing the heat affected zone and distortion. Lower frequencies generate a wider arc, useful for welding thicker parts or filling larger gaps. SUPERTIG 302 gives you complete freedom in arc shaping, resulting in welds of the highest quality, free of porosity and structural defects, even with the most demanding aluminum alloys.

The TIG welding with pulse function of the SUPERTIG 302 is a powerful tool in the hands of a professional. It allows the welding current to cycle between peak and base current, with adjustable frequency and pulse fill factor. Pulsed welding significantly reduces the amount of heat introduced into the material, which is extremely important when joining thin sheet metal, stainless steel and materials sensitive to overheating. This avoids burn-through, distortion and loss of corrosion properties, such as in austenitic steels.

By precisely controlling the pulse parameters, the welder can achieve welds of excellent appearance, with a distinctive, regular scale, which is often an aesthetic requirement. Moreover, arc pulsing improves control over the weld pool, making it easier to weld in forced positions. The available EASY PULSE function automatically selects the optimal pulse parameters, which is a great convenience, especially for less experienced users, while guaranteeing a high quality connection.

Intense welding work, especially at high TIG currents, generates considerable heat in the welding fixture. The TELWIN SUPERTIG 302, when combined with the AQUA liquid cooling module (G.R.A.), eliminates this problem. The system actively circulates coolant through the specially designed chuck, keeping its temperature at an optimal level. The main benefits are a drastic extension of the welder’s duty cycle at maximum loads – you can weld longer without interruptions to cool down the chuck. This directly translates into increased productivity and efficiency of your work.

TROLLEY AMERICA’s ergonomic cart is more than just convenient to transport. It is designed to accommodate the welder, cooler, shielding gas cylinder and necessary accessories such as wires and grips. This keeps the entire welding station mobile, organized and safe. No more tangled cables and carrying heavy equipment – with SUPERTIG 302 AQUA + TROLLEY you have everything at hand, ready to work anywhere. It’s an investment in comfort that makes a real difference in the quality and speed of your tasks.

Although the SUPERTIG 302 AC/DC is a champion in TIG welding, its capabilities in the MMA (shielded electrode) method are equally impressive, offering welding currents of up to 250A. The device is equipped with a number of features to facilitate and optimize the process. The adjustable Arc Force function dynamically increases the welding current when the arc is shortened, preventing it from extinguishing and sticking the electrode, which is particularly useful when welding in difficult positions and using special-purpose electrodes.

The Hot Start function provides a momentary increase in current at the start of welding, making it easier to strike the arc, even with cold or wet electrodes. The Anti-Stick system, on the other hand, automatically reduces the current if the electrode sticks to the material, allowing it to be easily torn off without damage. These smart boosters make MMA welding smoother, more efficient and accessible even to those with less experience, while guaranteeing strong and durable joints of a wide variety of steel types.