K4493-1 - Aspect 375 AC/DC Industrial TIG Welder

Precision AC/DC TIG Power Source for Critical Applications

The Lincoln Electric Aspect® 375 (K4493-1) represents the pinnacle of TIG welding technology, engineered for the most demanding industrial environments. Designed to deliver flawless welds on aluminum and other exotic alloys, this power source integrates advanced inverter technology with Lincoln's proprietary arc control features. It is the ideal solution for mission-critical applications in aerospace, motorsports, shipbuilding, and heavy fabrication where weld integrity and aesthetic appearance are paramount.

Advanced Waveform Control & Intellistart™

At the core of the Aspect 375 is its ability to manipulate the welding arc to suit specific material requirements. Operators can select from four distinct AC wave shapes: Square for fast travel speeds, Sine for a traditional soft arc, Triangular for reduced heat input on thin metal, and Soft Square for a buttery, responsive arc. Coupled with Intellistart™ Technology, the machine provides soft, precise starts on thin materials, minimizing the risk of burn-through and cratering often associated with high-frequency starting.

Industrial Reliability & Efficiency

Built to withstand harsh shop conditions, the Aspect 375 features an IP23-rated enclosure and potted PC boards to protect against dust and moisture. The Fan-As-Needed™ (F.A.N.) system ensures cooling components operate only when necessary, reducing noise and internal contaminant buildup. Additionally, PowerConnect® Technology allows the machine to automatically adjust to any input power from 200V to 600V, single or three-phase, making it a versatile asset for facilities with varying power infrastructures. With a 60% duty cycle at 350 amps, this machine is a true workhorse for continuous production environments.