Lincoln Square Wave TIG 205 AC/DC TIG & Stick Welder K5613-1

The Lincoln Square Wave TIG 205 is a versatile AC/DC TIG and Stick welding system designed for fabricators, repair technicians, hobbyists, and small shops who need professional‑grade performance in a portable package. Built for both aluminum and steel applications, the TIG 205 delivers smooth arc starts, excellent puddle control, and the adjustability needed for precision work.

This dual‑voltage machine operates on both 120V and 230V power, making it suitable for home garages, job sites, and shop environments. Its AC TIG mode includes adjustable frequency and balance controls, allowing users to fine‑tune cleaning action and arc focus when welding aluminum. DC TIG mode provides stable performance for stainless steel, chromoly, and mild steel.

The Square Wave 205 also functions as a capable stick welder, offering strong performance with common electrodes and reliable arc stability for outdoor or dirty‑metal conditions. The digital interface is simple to navigate, giving welders quick access to settings such as pulse, amperage, and AC parameters.

Weighing only 36 pounds, the unit is easy to transport while still delivering the power needed for fabrication, motorsports, metal art, and general repair work. Its rugged construction and intuitive controls make it a dependable choice for both beginners and experienced welders.

Features:

• AC/DC TIG and Stick welding capability

• Dual voltage: 120V or 230V input

• Adjustable AC frequency and AC balance for aluminum

• Pulse control for heat management and cleaner welds

• Smooth arc starts and stable performance

• Digital control panel for quick setup

• Lightweight 36 lb design for portability

• Ideal for aluminum, stainless steel, mild steel, and chromoly

• Suitable for fabrication, repair, hobby, and shop use

Specifications:

• Maximum TIG Output: 205A

• Stick Output: 140A (AC), 170A (DC)

• Input Frequency: 60 Hz

• Single‑phase operation

• AC/DC polarity

• Designed for aluminum and steel applications

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