---
product_id: 20431222
title: "Lincoln Electric Square Wave TIG 200 TIG Welder K5126-1"
brand: "lincoln electric"
price: "A$4157"
currency: AUD
in_stock: false
reviews_count: 9
url: https://www.desertcart.com.au/products/20431222-lincoln-electric-square-wave-tig-200-tig-welder-k5126-1
store_origin: AU
region: Australia
---

# Dual 120V/230V input for versatile power Pulse feature with rhythmic filler metal control Adjustable AC Frequency & Balance for perfect aluminum welds Lincoln Electric Square Wave TIG 200 TIG Welder K5126-1

**Brand:** lincoln electric
**Price:** A$4157
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Weld Like a Pro, Wherever You Go!

## Quick Answers

- **What is this?** Lincoln Electric Square Wave TIG 200 TIG Welder K5126-1 by lincoln electric
- **How much does it cost?** A$4157 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/20431222-lincoln-electric-square-wave-tig-200-tig-welder-k5126-1)

## Best For

- lincoln electric enthusiasts

## Why This Product

- Trusted lincoln electric brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pulse Welding Rhythm:** Leverage the pulse feature’s steady drumbeat to control heat and improve weld quality faster.
- • **Multi-Process Mastery:** Switch effortlessly between TIG and Stick welding modes to tackle both delicate and rugged projects.
- • **Lightweight & Portable:** At just 46 lbs, take your welding craft anywhere without compromise.
- • **Precision Aluminum Welding:** Fine-tune AC Frequency and Balance to clean and penetrate aluminum like a pro, mastering every bead.
- • **Plug & Play Power Flexibility:** Works seamlessly on standard 120V or high-output 230V circuits for ultimate portability and convenience.

## Overview

The Lincoln Electric Square Wave TIG 200 is a versatile, portable TIG and Stick welder designed for hobbyists and small fabricators. It supports both 120V and 230V inputs, features adjustable AC Frequency and Balance for superior aluminum welding, and includes a pulse mode for enhanced filler metal control. Weighing only 46 lbs, it combines professional-grade welding precision with unmatched portability.

## Description

The Square Wave® TIG 200 is a portable TIG and stick welding machine that lets hobbyists, makers, small fabricators and craftsmen explore their creativity. It is designed to help expand your welding expertise. As your skills and confidence grow, you can take advantage of the Square Wave TIG 200’s additional functionality. No matter your skill level, you won’t be disappointed. The Square Wave TIG 200 provides smooth and stable AC TIG welding on aluminum and DC TIG welding on steel, stainless steel and chrome-moly. A user-friendly interface enables the operators to set it, forget it and weld.

Review: Great Welder for the Money. - This is a great machine for a hobbyist, or even a low production shop. The fact that it is 110 and 220v makes it extremely portable, and you're not limited to using it in a certain area(albeit, it will be at a lower amperage). I agree with the other reviews... if you are looking at a 900 dollar welder, go ahead and get this Lincoln. Full warranty for 3 years, IIRC; although most likely you will never need it. There are a couple of cons even though I gave it a 5 star review. The pulse feature is limited to 20PPS. Usually, this is fine, but if you are really trying to control heat on thin metal, it would be nice to have more adjustability in the waveform(it's currently locked at 50%) and a higher PPS. 99.9% of people will never notice this. As other mentioned, the HF start pulse is probably over 10amps, and on super thin sheet metal this might be problematic. It would be nice to have some adjustability here. That said.... if you want those 2 very small quibbles, you can step up to the Miller at almost 3X the cost.
Review: Did not work straight outta the box ! - Didn't work straight outta the box. Plugged it in and absolutely nothing. Returned it for a full refund quick and easy.... picked up the exact same unit from my local welding supplier and it works flawlessly. Definitely a great machine but it must have taken a beating on the delivery trip. It has very fragile parts inside and needs to be handled very carefully. I don't recommend that delivery method as I honestly suspect the machine was damaged during shipping...

## Features

- The user interface makes machine setup easy. Available features, such as Pulse, which provides a drumbeat-like rhythm for filler metal deposition, make you become a better TIG welder - faster.
- 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 TIG 200 where you need it - a standard 120V circuit or 230V for maximum output. Portable and convenient to use, only 46 lb (21 kg).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B017DQ8DJ8 |
| Best Sellers Rank | #1,352,097 in Automotive ( See Top 100 in Automotive ) #1,384 in TIG Welding Equipment |
| Date First Available | October 30, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 46.5 pounds |
| Item model number | K5126-1 |
| Manufacturer | Lincoln Electric |
| Product Dimensions | 19.25 x 10.75 x 14 inches |

## Images

![Lincoln Electric Square Wave TIG 200 TIG Welder K5126-1 - Image 1](https://m.media-amazon.com/images/I/41XqCC9VSZL.jpg)
![Lincoln Electric Square Wave TIG 200 TIG Welder K5126-1 - Image 2](https://m.media-amazon.com/images/I/41ieGwmMVaL.jpg)
![Lincoln Electric Square Wave TIG 200 TIG Welder K5126-1 - Image 3](https://m.media-amazon.com/images/I/41itnkY1EaL.jpg)
![Lincoln Electric Square Wave TIG 200 TIG Welder K5126-1 - Image 4](https://m.media-amazon.com/images/I/41tFtRiyZYL.jpg)
![Lincoln Electric Square Wave TIG 200 TIG Welder K5126-1 - Image 5](https://m.media-amazon.com/images/I/610HNWYLRUL.jpg)

## Questions & Answers

**Q: What is the maximum thickness of steel this machine will weld?**
A: Well since this welder can be operated on 115V or 230V it will depend which voltage you are connected to.   on 115V the max current is 125amps which will relate to max 1/8" in a single pass.  but if connected to 230V then you will be able to get the max of 200amps out of welder , which will relate to a 1/4" thickness in a single pass.   these are both at a 25% duty cycle.   Hope that helps

**Q: Looking at this, the lincoln tig 225, and the miller syncrowave 210.  thoughts?**
A: I love the  square wave tig 200, I am no expert welder so my review may not hold water with the pros, but this unit is nice, and it is easy to use. and has performed very well for me without any problems, I have put about 40 hours on it so far without an issue.

**Q: Is the HF start only on aluminum? Or steel and stainless as well?**
A: High frequency start is used to initiate arc while welding steel. High frequency will be continuous while welding aluminum. The machine will automatically adjust for the process you are using.

**Q: Does this unit come with everything in the picture? Ready to weld**
A: It comes with everything pictured. All you need is an argon tank and welding rod

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Welder for the Money.
*by J***O on February 24, 2018*

This is a great machine for a hobbyist, or even a low production shop. The fact that it is 110 and 220v makes it extremely portable, and you're not limited to using it in a certain area(albeit, it will be at a lower amperage). I agree with the other reviews... if you are looking at a 900 dollar welder, go ahead and get this Lincoln. Full warranty for 3 years, IIRC; although most likely you will never need it. There are a couple of cons even though I gave it a 5 star review. The pulse feature is limited to 20PPS. Usually, this is fine, but if you are really trying to control heat on thin metal, it would be nice to have more adjustability in the waveform(it's currently locked at 50%) and a higher PPS. 99.9% of people will never notice this. As other mentioned, the HF start pulse is probably over 10amps, and on super thin sheet metal this might be problematic. It would be nice to have some adjustability here. That said.... if you want those 2 very small quibbles, you can step up to the Miller at almost 3X the cost.

### ⭐⭐⭐⭐⭐ Did not work straight outta the box !
*by P***T on December 24, 2021*

Didn't work straight outta the box. Plugged it in and absolutely nothing. Returned it for a full refund quick and easy.... picked up the exact same unit from my local welding supplier and it works flawlessly. Definitely a great machine but it must have taken a beating on the delivery trip. It has very fragile parts inside and needs to be handled very carefully. I don't recommend that delivery method as I honestly suspect the machine was damaged during shipping...

### ⭐ Excellent piece of equipment
*by W***B on December 26, 2016*

Excellent piece of equipment! Where I struggled with an import welder, I produced good welds within 15 minutes with this unit.

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-09*