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Lincoln Square Wave TIG 200 AC/DC TIG Welder

SKU: U5126-1
$2,199.00 $2,599.00
Financing / Leasing Available

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Whether you're purchasing a new MIG welder, TIG welder, engine-driven welder, or welding accessories, our financing solutions help you equip your shop without large upfront costs. We offer lease-to-own options on trusted brands like Lincoln Electric, Miller Electric, and more.

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Why Choose Lease-to-Own Welding Equipment?

Lease-to-own financing gives you the flexibility to grow your business while preserving cash flow.

Key benefits include:

  • Low upfront cost – Start using equipment without a large initial investment
  • Flexible terms – Choose payment plans that fit your budget
  • Access to latest technology – Stay competitive with modern welding equipment
  • Ownership options – Buy the equipment, upgrade, or return it at the end of the lease

You also have the option to purchase your equipment early, including within the first 12 months.

Tax Advantages

In many cases, lease payments for business-use equipment may be tax-deductible. This can reduce your overall cost and free up capital for additional tools, supplies, or labor.

(Consult your tax advisor for details.)

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  • Application takes about 4 minutes
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If approved for more than your initial request, you can easily adjust your financing to include additional items.

Need Help?

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Overview

The Lincoln Electric Lincoln Square Wave TIG 200 AC/DC TIG Welder is a versatile, inverter-based AC/DC TIG (GTAW) and Stick (SMAW) welding machine designed for precision welding on aluminum, stainless steel, carbon steel, and other common alloys. Engineered for portability without sacrificing capability, the Square Wave TIG 200 is well-suited for motorsports fabricators, aerospace maintenance technicians, artists, and professional welders who need a capable TIG machine in a compact, dual-voltage package.

The Square Wave TIG 200 features independently adjustable AC frequency and AC balance for optimized aluminum welding performance, enabling operators to tune arc width, cleaning action, and penetration profile for varying aluminum alloys and material thicknesses. High-frequency arc start provides reliable, contamination-free tungsten ignition for code-quality TIG welds. The U5126-1 factory demo model is inspected and certified by Lincoln Electric and available at a reduced price.

Available Configurations
  • K5126-1 – Square Wave TIG 200 TIG Welder - Versatile Portable Welding Machine
  • U5126-1 – SquareWave TIG 200 TIG Welder Machine Factory Demo Welder
Key Features
  • AC/DC TIG (GTAW) and Stick (SMAW) welding capability in a single portable machine
  • Up to 200 amps output supporting aluminum, stainless steel, and carbon steel
  • Adjustable AC frequency for arc focus control on aluminum welding applications
  • AC balance control optimizes cleaning action versus penetration for varying aluminum alloys
  • High-frequency arc start provides clean, contamination-free tungsten ignition
  • Dual-voltage input (120V/230V) for deployment in shops, garages, and field locations
  • Pulse control for improved heat management on thin materials and out-of-position welds
  • Lightweight inverter design for portability between workstations and job sites
Applications
  • Aluminum chassis, roll cage, and suspension component welding in motorsports fabrication
  • Stainless steel food-service equipment and pharmaceutical vessel welding
  • Aerospace component repair and maintenance TIG welding
  • Artistic metalwork, sculpture, and custom fabrication on thin-gauge alloys
  • Technical training and vocational TIG welding education
Why Choose Lincoln Electric Lincoln Square Wave TIG 200 AC/DC TIG Welder

The Lincoln Square Wave TIG 200 combines AC/DC TIG capability, dual-voltage flexibility, and a precision inverter arc into one of the most portable and capable TIG machines in its class. Whether you choose the new unit or the factory-certified demo model, both deliver the arc quality, AC balance control, and reliable high-frequency start that professionals demand for aluminum and stainless steel TIG welding work.

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