THE POWER OF PRECISION AND SIMPLICITY
Discover a new wave of TIG innovation with the Square Wave 205 AC/DC TIG welder. With a user-driven design, enhanced digital interface, and outstanding arc performance, this machine allows you tackle your next project with confidence and ease.
Whether you’re a hobbyist or a full-blown fabricator, this compact machine delivers the perfect combination of machine control and welding capabilities to handle whatever comes your way.
Processes »
AC/DC TIG, AC/DC Stick
Applications »
Home, Hobby, Shop, Light Fabrication, Hobby Aviation, Motorsports, Makers, Education
Features
- Simple User Interface - bright 4.3” LCD display that makes setup intuitive and easy.
- AC/DC TIG and AC/DC Stick Capabilities - optimized processes for a variety of materials and applications with excellent E6010 and E7018 performance.
- Advanced Features - pulse, AC frequency, and AC balance to provide control no matter the material and application.
- Robust Design - Durable design, IP21S rated, for optimal performance in a wide range of environments and conditions.
- Lightweight and Portable - only 36 lbs. with ergonomic front handles and an integrated storage compartment to make transportation easy.
- Dual Input Voltage - 120V and 230V inputs so you can plug into any common power supply.
Easy to Use. Period.
Designed for all skill-levels, the Square Wave 205 digital interface allows for simple machine control. From effortless navigation to get you welding in seconds, to advanced control to dial in precise parameters - this welder has it all.
Designed with Purpose
Lightweight, compact, rugged, reliable - the Square Wave 205 design covers it all. Weighing only 36 lbs. this field-tested machine was engineered for easy use wherever you need it.
Precise Performance. Professional Results.
Packed with the trusted Lincoln Electric arc performance you can rely on, the Square Wave 205 cuts no corners when it comes to helping you make great welds. With AC TIG for Aluminum, pulsed DC TIG for steel, and dedicated E7018 & E6010 Stick - this machine has you covered.
Trusted Expertise & Support
Purchase with the peace-of-mind that your machine is backed by over a century of trusted engineering and welding expertise, with a worldwide network of distribution partners and service centers that are here to help. The Square Wave 205 comes backed with a hassle-free, 3-year warranty on parts & labor.
Optimal TIG Performance
Engineered to deliver optimal AC & DC TIG performance across various materials and applications, with advanced features including:
- Precise Pulse Control - Fine-tune pulse settings to optimize bead appearance and heat input
- Precise Post Flow Control - Fine-tune post flow settings to help protect the weld pool
- Auto Modes - Automatically configures AC balance and post flow based on amperage
Aluminum Welding - We Got You Covered
With its optimized AC TIG capabilities, the Square Wave 205 is the perfect machine to tackle your Aluminum welding projects with precision and ease.
- AC Frequency Control to dial-in the ideal bead width
- AC Balance for enhanced cleaning and optimized penetration on thicker materials
Versatile Stick Capabilities
In addition to TIG, the Square Wave 205 also delivers AC/DC Stick capabilities.
- Excellent E6010 and E7018 performance for a wide range of applications - including capabilities to use whip technique for E6010
- Optimized modes for Soft or Crisp stick welding
Designed With Purpose
Whether in the fab shop, or in the garage, the Square Wave 205 was designed to withstand a wide range of environments and conditions
- IP21S rating for trusted durability
- Dynamic Cooling - Fan automatically adjusts when welding or when idle
Take it Everywhere, Plug in Anywhere™
The Square wave 205 was engineered for portability and convenience, with design features including:
- Dual Voltage Input - Easily plug in to 120V or 230V power supply
- Lightweight & Portable - Only 36lbs. with ergonomic front handles and integrated storage compartment
What's Included
- Caliber 17 TIG Torch Ready Pak
- Caliber 17/18/26 Series Medium Duty TIG Torch Parts Kit [KP4760-MD]
- 25 ft. Foot Amptrol [K870]
- Gas Regulator [300369]
- 120V to 230V Power Cord Adapter
- Electrode Holder with Twist-Mate adapter
- Work Cable and Clamp with Twist-Mate adapter
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