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Lincoln Square Wave TIG 200 – Best Lincoln TIG Welder Review

Lincoln Square Wave TIG 200

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Lincoln Square Wave TIG 200 is a portable TIG and stick welding machine dedicated to professionals, hobbyists, and small fabricators. The welder is designed to help expand your welding expertise taking advantage of the Square Wave TIG 200’s additional functionality.

The welder is easy to set and adjust for different materials, including mild steel, stainless steel, aluminum, and other metals. Besides, Lincoln Square Wave TIG 200 can weld a wide range of thicknesses providing smooth and stable AC TIG welding on aluminum and DC TIG welding on steel, stainless steel, and chrome-moly.

The welder features a user-friendly interface that makes machine setup easy (set it, forget it, and weld). The pulse feature on this fantastic machine provides a drumbeat-like rhythm for filler metal deposition, improving the welding quality and speed.

The Lincoln Square Wave TIG 200 is built with quality and durability and is one of Lincoln’s most popular TIG welders. No matter your skill level, this welder won’t disappoint you.

Consider the following before you decide on your purchase

Power specification

Lincoln Square Wave TIG 200 works on single-phase input power of 120~230 volts with input hertz of 50/60Hz, producing output welding amperage range of 10-125 A for TIG and 10 – 90 A for stick for input power of 120V and 10-200 A for TIG and 10-170 A for stick for input power of 230V.

Duty cycle

Duty cycle means the percentage of 10 minutes that the unit can weld at rated load without overheating. Lincoln Square Wave TIG 200 has the following duty cycle:

  • 120V TIG: 25% Duty Cycle 21A 40% Duty Cycle 17A, 60% Duty Cycle 14A.
  • 120V Stick: 20% Duty Cycle 19A 60% Duty Cycle 16A.
  • 230V TIG: 25% Duty Cycle 22A 40% Duty Cycle 17A 60% Duty Cycle 13A.

Evaluate your need and understand this feature before making your decision.

Material range

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.

Weight and portability

Portability becomes vital if you plan to use it in more than one place (like home and workshop). Lincoln Square Wave TIG 200 is a moderate-weight portable welder weighing 46 pounds. The size of the machine is 14 in x 10.75 in x 19.25 in (358 mm x 282 mm x 502 mm), which makes it suitable for moving it anywhere.

Warranty

Warranty is another critical factor to consider. Lincoln offers a three years Industrial Limited Warranty with this welding machine.

Key features of the product

• The Lincoln Electric Square Wave 200 is a portable TIG and stick welding machine and is very useful for hobbyists, craftsmen, and small fabricators.

Multi-process machine. The machine can TIG weld when precision and bead appearance are essential and stick weld for outdoor work or thicker materials.

• Square wave 200 is made in the USA.

• This welder is a moderate weight (46 pounds) portable welder; you can take it anywhere.

• You can plug it into a standard 120V circuit or 230V for maximum output.

• This AC TIG 200 provides smooth welding on aluminum, and the DC TIG provides smooth welding on steel, stainless steel, and alloy steels.

• The machine provides a user-friendly interface.

A great TIG machine for welding aluminum.

High frequency starting for aluminum welding.

• 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.

• The pulse mode feature helps you to become a better and faster TIG welder.

• The features of TIG 200 helps you to learn the skills of welding and grow into a professional.

• Three years limited warranty.

Pros

• Quality and reliable product, Lincoln Square Wave 200 is one of the most durable, reliable, and high-performing TIG welders.

• Square wave 200 is made in the USA.

• Can weld aluminum and steels, stainless steel, and other metals.

• Good portability (46 pounds weight).

• Simple user interface makes machine setup easy.

• Dual voltage 120 V/230 V.

• Foot-operated amperes control.

• Reputed and reliable brand.

• Dual welder AC/DC TIG and DC stick.

• Built-in settings for more cleaning action.

Cons

• Costlier welder for beginners and hobbyists.

Items received with the welder

• 1× Gas regulator/flowmeter and 10 feet gas hose.
• 1× 200 A Stick Electrode Holder.
• PTA 17-F TIG Torch Ready -Pak® (12.5 feet 1 pc) 150 Amp Air-cooled.
• Ground clamp and cable.
• 120 and 230 V input cords.
• Foot Amptrol™ 25 feet. (6 pin) K870

Lincoln TIG 200

Lincoln Square Wave TIG 200 Welder Specification

Make

Lincoln Electric

Have sales and service in the USA

Yes. This product is manufactured in the USA

Model

Square Wave TIG 200

Input voltage (V)

Single Phase 120 V/230 V

Process type

AC and DC TIG & SMAW (Stick) welding machine

Current output range TIG

10-125 A (120 V) or 10-200 A (230 V)

High Frequency (HF) start

Yes.

Pulse range

0.1 – 20 pulses per second

Duty cycle

25% at 125 A, 40% at 100 A, and 60% at 85 A.

Dimensions and weight

14ʺ×10.75ʺ×19.25ʺ & 46 pounds.

Frequently asked questions about Lincoln Square Wave 200 welder

What is the best use of Lincoln Square Wave 200 welder?

Lincoln Square Wave 200 welder is suitable for various applications, including home, shop, light fabrication, motorsports, education, and much more. The machine clean and hygienic welding is better utilized for welding stainless steel parts and accessories required in chemical, food, and other industries. Besides, the welder can be used to weld metals like carbon steels, stainless steels, aluminum, etc.

What are the metals that can be welded using a Lincoln Square Wave 200 welder?

Typically, you can use your Lincoln Square Wave 200 welder for welding steel, stainless steel, aluminum, and other metals, including chromium-molybdenum steel alloys.

Can I use Lincoln Square Wave 200 for outdoor work?

No, it is not advisable to use any TIG welder for outdoor work. The turbulence in the surrounding air disturbs the shielding gas, and welding quality will be bad. However, this machine is a multi-process machine. The machine can TIG weld when precision and bead appearance is essential in the workshop or indoor environment and stick weld for outdoor work or thicker materials.

What is the current type used in Lincoln Square Wave 200?

You can operate Lincoln Square Wave 200 welder with AC (alternating current) and DC (direct current). The value and the type of current used depends on the type of metal and its thickness.

What is the TIG torch type used in Lincoln Square Wave 200?

This welder uses air-cooled welding torch which mean the welder uses ambient air and shielding gas to remove excess heat from the torch.

Is Lincoln Square Wave 200 a multi-process welder or only TIG Welder?

Lincoln Square Wave 200 welder is a dedicated TIG welder with a bonus of stick welding capability for outdoor work or thicker materials.

Generally, multi-process welders are strong in one primary welding process with more features (TIG in our case), followed by a secondary welding process with comparatively fewer features. However, still, the multi-process welder will not be as reliable as the dedicated machines for the secondary welding process.

Miller diversion 180

Miller Diversion 180 TIG Welder Review

Miller Diversion 180 TIG Welder is another portable TIG welder suitable for various applications, including home, shop, light fabrication, metal art, vocational training, etc. The welder can be used to weld metals like carbon steels, stainless steels, aluminum, and much more.

The welder features an inverter-based AC/DC power source which provides a consistent welding arc while using less power. Besides, the high-frequency arc starting feature provides non-contact arc initiation that reduces tungsten and material contamination.

Miller Diversion 180 TIG welder has an auto-post flow that adjusts the length of post flow time based on the amperage setting, shielding your tungsten and eliminating the need to set the post flow time. In addition to advanced squarewave AC, which provides a fast freezing weld puddle and deeper penetration.

Miller Diversion 180 Pros

• Reputed and reliable brand.

• Inverter-based AC/DC power source capability.

• Dual voltage 115 V / 230 V.

• User-friendly interface.

• Can weld aluminum and steels, stainless steel, and other metals.

• High-frequency arc starting provides non-contact arc initiation that reduces tungsten and material contamination.

• Auto-post flow adjusts the length of post-flow time based on the amperage setting.

• Advanced squarewave AC provides a fast freezing weld puddle and deeper penetration.

• Includes remote foot control, and multi-voltage plug allows for connection to 120V or 240V receptacles without tools.

• Power source is warranted for three years, and main power rectified parts are warranted for five years.

Miller Diversion 180 Cons

• Expensive welder, beginners, and hobbyists may not afford this machine.

• Not suitable for industrial applications.

Our final verdict

Lincoln has brought quality into our home garages and workshops with this welder. Lincoln Square Wave TIG 200 TIG welder lets hobbyists, makers, small fabricators, and craftsmen explore their creativity. The machine is also suitable for professional welders working on sophisticated projects.

At the same time, it is relatively easy for a hobbyist and small fabricators to handle. The very easy-to-use interface makes the machine suitable for less-educated welders and even people who have zero knowledge.

This incredible machine, and even though it is not meant for large fabricators, it keeps the fabrication projects going on with no duty cycle problems.

We recommend Lincoln Square Wave 200 welder for welders looking for a heavy-duty welding machine while maintaining quality and the highest level of precision and accuracy. We have reviewed this welder and provided sufficient details, tips, and tricks to help you make a wise decision.

Although this welder is on the higher side of the prices range, if you put in some hard work, you may recover your investment within a short time.

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About The Author
Ahmed M. Aly

Ahmed M. Aly

Ahmed is a mechanical engineer with a vast experience in ship repair project management, production department management, and Oil & Gas industries. He is certified Weldment Inspection Personnel "CSWIP - TWI, UK", Certified Coating Inspector "CIP LII - NACE, USA" and NDT Experts "ASNT NDT LIII Certified".