Lincoln Square Wave TIG 200 Welder (K5126-1)

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4.81 / 5 stars with 36 reviews
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Lincoln Square Wave TIG 200 (K5126-1)
Lincoln Square Wave TIG 200 (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
For a limited time, receive a $125 rebate from Lincoln when you purchase this machine! Click the image below to download the rebate flyer.

Lincoln Square Wave TIG 200 Rebate

The Lincoln Square Wave TIG 200 Welder (K5126-1) is the hottest TIG welder on the market right now. Operators of all skill levels are flocking to the Square Wave TIG 200 thanks to its easy of set up, ease of use, and the ability to dial in the settings to adapt to nearly any application. 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. The square wave 200 has advanced features, yet is easy to use with its simple user interface & pulse feature. It has high frequency starting which makes it an ideal aluminum tig welder. It features built-in settings for more cleaning action & allows for wider or tighter arc configurations. Offers both tig & stick functionality. You can take this welder on the road since it only weighs 46lbs & utilizes both 120V or 230V plugs. This Square Wave 200 will TIG weld up to 3/16" Aluminum or 3/8" Steel.

In Stock and Ready to Ship!

Features:
• AC/DC TIG & Stick welding capabilities
• 200 amps output
• Extremely portable - Only 46 lbs

Quick Specs:
• Input Power: 120 or 230 Volt, Single Phase, 60 Hertz
• Output Range: 120V = Tig (10-125A), Stick (10-110A)
• Output Range: 230V = Tig (10-200A), Stick (10-170A)
• Rated Output: 230V = Tig (200A @ 25%), (130A @ 60%)
• AC Frequency Range: 60-150HZ
• AC Balance: 60-90 (%Electrode Negative)
• Pulse: 0.1-20 (Pulses per Second)
• Weight: 46 lbs (21kg)
• Dimensions: 14"h X 10.75"w X 19.25"d (358 X 282 X 502mm)

Includes:
• Square Wave 200 Welder
• PTA-17 Series 150 Amp Air-cooled TIG torch w/ flexible head & ultra-flex cable assembly
• Foot Amptrol
• Regulator/Flowmeter with gas hose
• Stick Electrode Holder
• Ground Clamp
• 120/230V Input Cords
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More Information
Brand Lincoln
SKU ILIN20150094
MPN LINK5126-1
Mfgs MPN K5126-1
UPC 015082616285
Material Aluminum, Mild Steel, Stainless Steel
Process Stick, TIG
Max Amperage Output 200
Usage Home/Hobby, Light Industrial
Phase Single Phase
Manufacturer's Warranty 3 Years
Polarity AC/DC
Duty Cycle 40%
Duty Cycle 40% at 120V, 25% at 230V
Portability 46 lbs
Skill Level Beginner, Weekend Warrior, Career Welder
Input Voltage 120, 230
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Initial Impression" So far I've only used the Square Wave 200 for TIG welding. Seems to work well.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Everything as expected" The welder was delivered in exactly the time frame the sales rep told me. It arrived in great condition, and is awesome to use. I'm having a lot of fun with it already!
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Dead on arrival" Can not review the tig 200, as it was broken upon arrival to my shop. Plug it in & nothing happens.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Lincoln Square Wave TIG 200 Welder (K5126-1)" The welder was shipped very quickly from Welding Supplies from IOC, great communication as far as tracking numbers and order processing. This is my first TIG welder, and first attempt at using a TIG welder. I have only used the 120 vac input and only set the amperage to 100 amps, the welder has no trouble keeping up. I've tried both DC and AC TIG functions with no problems. I modified my MIG cart to hold two welders and used the Lincoln Square Wave 200 to weld all of the added tubing, it worked great. The tungstens that came with the unit seem to burn back and ball up, but that may be me not holding the correct distance. I ordered some Red and Blue tungstens and with some practice, they seem to hold up better for me. Great welder so far, I just need a lot of practice.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Lincoln squarewave 200" I haven't received it yet, so resend email sometime next week.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Logical buy." All my research comparing TIG welders shows no logical reason to purchase any other machine in this category. Compared to the Diversion 180 that is $600 more: This machine has longer duty cycle, more settings, more power AND does stick welding. Thanks Lincoln for making this such an easy choice. Grant G.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Newbie to TIG and all is well" I have to say to is a great welder, it has to be. Why you ask? I have never so much as picked up a TIG torch before and after setting up the Lincoln Square Wave TIG 200 at the defaults and amperage recommended, I repaired a friends boat launch dolly. The beads weren't beautiful but they are holding up to daily use. The welder is easy to use, and I'm hooked. It took a bit to get used to using 3 of my 4 appendages but what ever I lacked the welder made up for. Great product and highly recommended.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
3 stars - "NOT THE QUALITY I EXPECTED FROM LINCOLN" This unit, while priced right, did not live up to my quality expectations. The unit has metal studs on the bottom which allow it to slide on a hard work surface. Clearly designed for rubber feet as the studs have 1/4 inch holes drilled in them, but the rubber feet are are missing. Plus, the unit does not sit level. It sits on the faceplate and the back two studs. After checking with WSFIOC, the other units in stock were all built the same. Finally, the accessories (gauges, gas hose, and cords) were cheap and not of the same quality of the Miller equipment I purchased a few years back. I would expect better from a brand like Lincoln and not Chinese quality. Operation wise, the unit appears to work well and is easy to configure for AC or DC with the minimal controls. Also, WSFIOC, as usual, shipped the unit out promptly and provided quality customer service.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Tig your it." Great service. Quick delivery. No Problems. I will shop there again.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Great Welder..." Just can't be beat for the price. I had an older Square Wave 175 and loved it, now I'm in love with the new one. Thanks!
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Super fast shipping. Great product" I ordered the Lincoln Square Wave TIG 200, and then it seems like all the sudden it was being delivered to my shop. The machine works great on either 115 or 230. easy setup and control. I needed a machine that did aluminum, and so far this machine seems to perform great on it.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Lincoln Square Wave Tig 200 Review" Was very pleased with this welder. Was exactly as described and the shipping was very fast. Ordered it on a Friday and got it on Monday. Will continue to order from Welding Supplies from IOC in the future for all my welding needs.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "great welder" Everything looks and performs add it should. No issues.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Square wave tig" Amazing
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Lincoln Square Wave TIG 200 Welder (K5126-1)." I finally got to fire up the new machine !! It is everything I expected from the LINCOLN company ! Very well built,ease of operation,very stable and on and on and on !! I am very pleased with the new Square Wave 200. I am 66 years old now and have been a welder all of my life since I was 15 years old .And I have ALWAYS used the RED & BLACK machines ! TOO old to change now ! And the price of the new machine was just SUPER !! THANKS AGAIN TO LINCOLN ELECTRIC for putting out a fabulous machine !! Steve Lakeside,AZ.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "UPS" welder was damaged during shipping,I will review when the replacement arrives,no issues in processing or arrival time.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "New to tig. Lincoln Tig 200" Fast shipping from long distance. Ok price. At first machine would not power up, so i was a little upset. (Ribbon cable behind screen was just a little loose). Thanks nate for helping me with this. Welds awesome...assuming you can tig.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Excellent service" Very fast shipping
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Haven't used it yet waiting" Haven't used it yet waiting on Gas cylinders
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Great little machine for the price!" After my 30 year old Lincoln 300/300 TIG machine broke down(bad polarity switch)I needed a machine to work with while in the repair shop. The Lincoln Square Wave TIG 200 was a good, inexpensive way to keep going on production. Welding mostly 11ga.,7ga,and 1/4" 304 stainless, this little powerhouse does a great job. While it falls a little short on 120volt power(125amps max)it does a great job on 230volt power. There is a slight amp fade on longer passes, but not much worse than most TIG machines I've worked with. At 40% duty cycle, paired with a good water cooled torch, you can weld all day and this machine just doesn't quit.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Very satisfied" I am extremely satisfied on all accounts with my purchase. Fast shipping etc. Thank you.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "GREAT SERVICE GREAT PRODUCT" GREAT SERVICE GREAT PRODUCT
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
3 stars - "Machine looks great and all" Machine looks great and all accessories and parts are good quality. The machine however would run but the interface controls and lights would not turn on. Had to have someone fix it. Can't wait to try it once it works.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Customer Service & Product" outstanding service and great product.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Lincoln SquareWave TIG 200" I unboxed and had the machine running in just a few minutes. Very easy setup and operation. Good amperage control and plenty of power; I haven't hit the duty cycle limits yet. Great machine to get the job done. My only minor gripe is that the (very loud) fan is on all the time so it sucks dust and debris through the machine and will require more frequent cleaning than an on-demand fan.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Great welder" Great welder
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
4 stars - "Bought a welder" Great service and quick shipping Too bad the welder didn't work out of the box so had to drop it off for warranty at a local repair shop
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "great welder, first tig for me and its great." I have welded with mig both steel and alum, for years. I have a spool gun for my mig and have done quite a bit of work with it. This was my first tig unit, and am very happy. I learned it quite fast and it dose a very big range of welding. easy to use and set up, and when you change a setting it really changes.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Love it." No complaints. My first TIG. Quality of everything seems good. Works well.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Nice machine so far" Seems to be a good little machine so far. i have used it for steel and aluminum tig, and burned a couple of rods on stick mode just to try it out. I only wish the post flow was adjustable, 15 seconds seems a bit much for some things. Overall I like it a lot.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Great place to buy from." Haven't used the welder, had to send the first one back due to damage from shipping. I contacted them and told them my problem and sent them some pictures of the damage welder and less the a hour they sent me a shipping label to send the bad one back. Just received my new one and it looks good. Great customer service will buy from them again.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "An Impressive TIG Welder in a compact package." A well constructed, easy to use multi function machine. Ideal for my needs which is motorcycle restoration and repair. Will weld 1/8" aluminum on a 110v outlet and 3/16" on a 220v. The digital display and push button switching is a big plus. This is my first Lincoln machine, always been a Miller fan, but this machine was hundreds less. The build quality and supplied components are top shelf. Highly recommended.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Awesome!" This is is a great online store and the Square Wave 200 is great! I bought a not so cheap import first and there is simply no comparison!
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
3 stars - "uh-oh" I have owned this machine for 2 years, now there is issues with the motherboard. apparently, this isn't an uncommon problem according to the repair shop. the motherboard costs 1200 alone, and if you are out of warranty, you are out of a welder. besides this issue, I love the machine.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "TIG 200" So far so good. I have a couple of questions about the controls of the amp settings. It won't go to 200 amps as described.
Lincoln Square Wave TIG 200 Welder (K5126-1) Lincoln Square Wave TIG 200 Welder (K5126-1)
5 stars - "Tig 200" Really fast service.. thanks

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