The TELWIN SUPERIOR TIG 251 DC is synonymous with precision in DC TIG welding. The key here is the advanced microprocessor control, which allows you to accurately set and monitor all key process parameters. Features such as adjustable current rise and fall times (Slope Up/Down), Start/End Current adjustment, and Pre/Post Gas timing give the welder full control over every stage of weld formation, from start to crater completion.

Of particular importance is the TIG Puls function. It allows welding with pulsating current, where peak current and base current alternate. By adjusting the pulse frequency (Pulse Frequency) and pulse balance (Pulse Duty Cycle/Balance), the professional can precisely control the amount of heat input. This is invaluable when welding thin sheets of stainless steel, titanium or other deformation-sensitive materials, allowing a deeper fusion with less linear energy input. The result is welds with excellent quality, minimal distortion and an aesthetically pleasing appearance.

Although the TELWIN SUPERIOR TIG 251 DC is a TIG specialist, its capabilities in MMA (shielded electrode) welding are equally impressive. With 250A of power and advanced support functions, the unit can handle electrodes up to 5.0 mm in diameter, including rutile, alkaline and cellulose.

The Arc Force function dynamically increases the welding current when the arc is shortened, preventing arc extinction and making it easier to weld in difficult positions. Hot Start provides a momentary increase in current at the start of welding, ensuring easy arc ignition even with cold or wet electrodes. Anti-Stick, on the other hand, automatically reduces the current if the electrode sticks to the material, protecting it from overheating and making it easier to detach. These intelligent systems make MMA welding simpler, more stable and efficient, even for less experienced operators, and professionals will appreciate the smoothness and control of the process.

When designing the SUPERIOR TIG 251 DC, Telwin placed great emphasis on reliability and safety. The unit is equipped with a number of safety features that protect both the welder and the operator. Thermostatic protection monitors the temperature of key components, shutting down the unit if it overheats. Overvoltage and undervoltage protection protect against voltage fluctuations in the power supply, a common problem in industrial settings or when working with generators. Overcurrent protection prevents damage resulting from excessive current.

The rugged IP23-rated metal housing provides resistance to dust and splashes of water, allowing operation in a wide variety of conditions, including outdoors (with adequate protection from direct rain). A high-quality fan and optimized airflow guarantee efficient cooling. All this translates into a long life of the device and minimization of the risk of failure, which for the professional means continuity of work and certainty of investment for years.