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

Square Wave 205 welder for AC/DC stick and TIG welding uses Square Wave Technology.

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

• A Great TIG Machine for Aluminum - For a wider or tighter welding bead, users can easily adjust AC Frequency Control. AC Balance can be adjusted to provide more cleaning action on dirty aluminum or to maximize penetration on thick materials.
• TIG and Stick from One Power Source - The multi-process machine can TIG weld when precision and bead appearance are important. Users also have the advantage of stick welding capability for outdoor work or thicker materials.
• Take it Everywhere, Plug in Anywhere.™ - Plug in the Square Wave 205 where you need it - a standard 120V circuit or 230V for maximum output. Portable and convenient to use, only 36lbs (16 kg)

What's Included

• (1) Square Wave 205 TIG Welder
• (1) K5339-17F-1 Caliber 17 TIG Torch Ready-Pak®
• (1) K870 Foot Amptrol™
• (1) Gas Regulator/Flowmeter and 10 ft (3 m) Gas Hose Kit
• (1) Stick Electrode Holder 200A
• (1) Ground Clamp and Cable
• (1) 120 and 230V Adapter
• Caliber® 17 Series TIG Torch Ready Pak - Rigid, 12.5 ft. (3.8 m) | K5339-17-1
• Caliber® 17/18/26 Series TIG Torch Expendables Kit - 0.040"-3/32" | KP4760-MD
• Model 601-Ar5-30-580 Single-Stage Flowgauge Regulator | 3000369
• Foot Amptrol™ - 25 ft (7.6m) (6 pin) | K870

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