The Lincoln Electric Aspect® 375 AC/DC TIG Welder is a high-performance precision welding system engineered for mission-critical applications where weld quality cannot be compromised. Designed for industries such as aerospace, motorsports, shipbuilding, and advanced fabrication, this powerful machine delivers exceptional arc control, advanced customization, and industry-leading reliability.
With both AC and DC TIG capabilities, the Aspect 375 provides superior performance on aluminum, stainless steel, and other critical materials, making it an ideal solution for demanding welding environments. :contentReference[oaicite:0]{index=0}
- Delivers up to 375 amps of TIG welding power
- Extremely fast arc response for smooth, stable welds
- Designed for high-quality, code-critical applications
- AC welding for aluminum with optimized cleaning and penetration
- DC welding for steel, stainless steel, and other materials
- Supports both High Frequency TIG and Touch Start TIG modes
- Automatically adjusts arc starts based on material thickness
- Softer starts reduce distortion on thin materials
- Hotter starts improve performance on thicker materials
- Automatically balances cleaning and penetration when welding aluminum
- Adjustable AC frequency (40–400 Hz) for arc focus control
- Customizable wave shapes for precision welding performance
- AC Wave Shape control for tuning arc characteristics
- Adjustable EP/EN balance for deeper penetration or increased cleaning
- Pulse controls for improved heat management and weld control
- Intuitive front panel with easy-to-use parameter adjustments
- Memory settings for storing frequently used welding setups
- Sequencer controls for full weld cycle customization
- Advanced AC/DC TIG and Stick welding capabilities
- Ideal for shops requiring a powerful standalone TIG system
- Complete system including TIG torch, foot pedal, cooler, and accessories
- Fully assembled and ready for immediate operation
- Includes CoolArc® water cooling system and regulator kit
- Aerospace and aviation welding
- Motorsports and performance fabrication
- Shipbuilding and structural welding
- Precision fabrication and custom metalwork
- Technical training and education
The Aspect® 375 AC/DC is built for professionals who demand complete control over their welding process. With advanced arc tuning capabilities, intelligent automation features, and powerful AC/DC performance, this machine delivers the precision, consistency, and reliability required for the most demanding welding applications.




