TIG (Tungsten Inert Gas) direct current (DC) welding with LIFT ARC ignition is the quintessence of precision in the hands of a professional. This technology, implemented in the TELWIN TECNICA 190, allows the creation of extremely clean, aesthetic and durable welds on a wide range of materials such as carbon steels, stainless steels, copper, nickel, titanium and their alloys. LIFT ignition involves gently touching the non-fusible tungsten electrode to the material to be welded, then lifting it a short distance, which initiates current flow and the formation of a stable arc.

A key advantage of the LIFT ARC system, compared to traditional scraped ignition, is that the risk of contamination of the weld with tungsten particles is significantly minimized. This is particularly important when welding materials requiring the highest quality joints, such as in the food, pharmaceutical and chemical industries. In addition, the absence of high frequency (HF) at ignition eliminates the risk of electromagnetic interference, which is important when working near sensitive electronics. The TECNICA 190’s stable DC current and precise parameter control allow full focus on guiding the weld pool, resulting in welds with excellent geometry and deep penetration.

Safety in the workplace is a priority, and welding involves the risk of electric shock. The TELWIN TECNICA 190 TIG DC-LIFT VRD is equipped with an advanced idle voltage reduction (VRD) system that actively protects the welder. Idle voltage (OCV) is the voltage present at the output terminals of the welder when it is not loaded, that is, when the welding arc is not engaged. In standard welding machines, it can reach up to 70-90V, which under certain conditions (e.g., humid environment, contact with grounded parts) poses a real danger.

The VRD system on the TECNICA 190 automatically reduces this voltage to a safe level, below 15V, when the welder is turned on but not welding. Only when an arc is attempted (e.g., by touching the electrode to the material in LIFT TIG or MMA mode) does the system restore the full voltage necessary to initiate the welding process. This feature is particularly critical and often required by health and safety regulations when working in so-called “high shock risk environments,” such as tanks, pipelines, shipyards, mines or wet areas. With VRD, professionals can perform their tasks with greater confidence and in compliance with the highest safety standards.

Although the TELWIN TECNICA 190 TIG is a master of precision in the TIG method, its capabilities do not end there. The device also offers full-fledged MMA (shielded electrode) welding, making it an extremely versatile tool for any workshop. In order to make work as easy as possible and ensure the highest quality MMA welds, the welder is equipped with a number of smart features that both experienced welders and those honing their skills will appreciate.

Hot Start is a function that momentarily increases the welding current above the set value when the arc is struck. This facilitates electrode ignition, especially with cold materials or difficult electrode types. Arc Force (arc dynamics) dynamically adjusts the welding current during the process, preventing the electrode from “sticking” to the material when the arc becomes too short. It maintains arc stability even when the arc length is shortened, which is key to achieving a uniform fusion. Anti-Stick, on the other hand, is a function that automatically reduces the welding current to a minimum if the electrode sticks to the material being welded. This allows the electrode to be easily detached without damaging it and without risking overloading the welder. These integrated technologies make MMA welding smoother, more efficient and less problematic.

When you choose a TELWIN TECNICA 190 welder, you are investing in more than 60 years of experience and innovation from the Italian leader in welding equipment, cutting systems and loaders. Telwin is a brand with a well-established global reputation, known for providing top-quality products that meet the expectations of the most demanding professionals in industry, crafts and automotive. Each Telwin device is the result of advanced research, rigorous testing and attention to detail, resulting in reliability, durability and superior performance.

The TECNICA 190 TIG DC-LIFT VRD is no exception. The compact and robust housing protects the advanced inverter electronics, ensuring long life even in harsh workshop or field conditions. The use of high-quality components and intelligent protection systems (thermostatic, overvoltage, undervoltage, overload protection) guarantee stable and safe operation. When you choose Telwin, you not only get an excellent tool, but also access to a wide network of service and technical support, demonstrating the brand’s commitment to customer satisfaction at every stage of product use.