The TELWIN TECHNOLOGY TIG 222 AC/DC is a true expert in welding aluminum and its alloys, offering the welder unprecedented control over key alternating current (AC) parameters. The key to success here is the ability to adjust the AC balance from 20-60%. This allows fine-tuning the ratio between the positive half-period (responsible for cleaning and oxide removal) and the negative half-period (ensuring deep fusion). This makes it possible to achieve a perfectly clean weld with optimal penetration, minimizing the risk of porosity or lack of fusion.

Another powerful tool is adjustable AC current frequency from 50 to 200 Hz. Higher frequency results in a more focused and stable arc, which translates into a narrower heat affected zone, less material distortion and the ability to weld faster, especially on thinner parts. Lower frequencies, on the other hand, can be advantageous with thicker materials, providing a wider pool and better melting of the material. The combination of these two adjustments gives the professional the ability to precisely “” sculpt “” the arc and tailor it to the specifics of any aluminum welding task, from delicate artwork to demanding structures.

The TIG pulse welding function of the TECHNOLOGY TIG 222 AC/DC is a real game-changer, especially when working with stainless steel, thin sheet metal and overheat-sensitive materials. The device offers full control over pulse parameters: frequency (from 0.25 Hz to 500 Hz), base current, peak current and pulse fill factor. This flexibility allows precise management of arc line energy, resulting in a significant reduction in heat input.

For the welder, this means a number of benefits: minimizing deformation and stress in the welded part, the ability to join very thin materials (even less than 1 mm) without the risk of burn-through, and obtaining a distinctive, aesthetic “” scale “” on the weld face, which is often desirable in many applications. Moreover, pulse welding makes it easier to control the weld pool, especially in forced positions. For those who appreciate simplicity, TELWIN has implemented the EASY PULSE function, which automatically selects the optimal pulse parameters based on the preset main current, greatly speeding up setup and allowing you to focus on the welding process itself.

Despite the enormity of its advanced features, the TELWIN TECHNOLOGY TIG 222 AC/DC is designed with the welder’s comfort and efficiency in mind. The digital control panel is clear and intuitive. The large, easy-to-read display shows all key parameters in real time, and ergonomically placed buttons and dials allow quick and precise adjustments. Menu navigation is logical, allowing easy access to all functions, such as selection of welding method (TIG AC/DC, MMA), ignition mode (HF/LIFT), configuration of pulse parameters, AC balance, AC frequency, current rise and fall times, and gas discharge.

TELWIN engineers have ensured that the welder can save personalized welding programs, which is extremely useful for repetitive tasks. The ability to quickly recall saved settings significantly reduces preparation time and guarantees repeatable results. In addition, the welder offers a calibration function, ensuring that the displayed current values correspond to the actual arc parameters. This combination of advanced technology and a well-thought-out user interface makes working with TECHNOLOGY TIG 222 AC/DC not only efficient, but also enjoyable, allowing professionals to realize their full potential.

Operator safety is a top priority for TELWIN. The TECHNOLOGY TIG 222 AC/DC model is equipped with a Voltage Reduction Device (VRD) system that significantly reduces the idle voltage (to below 25V) during MMA welding. This is a key feature that increases safety when working in environments with high humidity or where there is a risk of electric shock. The device also has a comprehensive safety system, including thermostatic protection, protection against too high or too low a supply voltage, and overcurrent protection. These mechanisms protect both the welder and the user, ensuring long and trouble-free operation.

Despite its advanced capabilities and robust design, the welder is characterized by its relatively small size and weight (13 kg). This makes it a mobile device, easy to move within the workshop or transport to the installation site. The IP23 degree of protection of the housing means that it is resistant to solid objects with a diameter of more than 12.5 mm and to water spray at any angle up to 60° from the vertical on either side, which allows safe operation in diverse conditions. These features make the TELWIN TECHNOLOGY TIG 222 AC/DC not only a powerful, but also a practical tool for any professional who values reliability and flexibility.