Square Wave® TIG 200 TIG Welder – K5126-1


  • Advanced features yet easy to use
  • A great TIG machine for aluminum
  • TIG and stick from one power source
  • Take it Everywhere, Plug in Anywhere.™
SKU: K5126-1 Category:

Product Description

What’s Included

K1782-14 PTA-17 TIG Torch Ready-Pak®
K870 Foot Amptrol™
  Gas Regulator/Flowmeter and 10 ft. (3 m) Gas Hose Kit
  200A Stick Electrode Holder
  Ground Clamp and Cable
  120 and 230V Input Cords



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.



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).


Square Wave TIG 200 Launch
Unboxing the Product
AC Frequency
AC Balance  



  • Stick

General Specifications

Input Power
  • 120/230/1/50/60
Rated Output
  • 120V:
  • TIG: 125A/25% (AC TIG 110A/25%)
  • TIG: 100A/40%
  • TIG: 85A/60%
  • Stick: 75A/20%
  • Stick: 65A/60%
  • 230V:
  • TIG: 200A/25%
  • TIG: 160A/40%
  • TIG: 130A/60%
  • Stick: 170A/20%
  • Stick: 100A/60%
Input Current
  • 120V:
  • TIG: 25% Duty Cycle 21A
  • TIG: 40% Duty Cycle 17A
  • TIG: 60% Duty Cycle 14A
  • Stick: 20% Duty Cycle 19A
  • Stick: 60% Duty Cycle 16A
  • 230V:
  • TIG: 25% Duty Cycle 22A
  • TIG: 40% Duty Cycle 17A
  • TIG: 60% Duty Cycle 13A
Output Range
  • 120V:
  • TIG: 10-125A
  • Stick: 10-90A
  • 230V:
  • TIG: 10-200A
  • Stick: 10-170A
Dimensions (H x W x D) 14 in x 10.75 in x 19.25 in (358 mm x 282 mm x 502 mm)
Net Weight 46.50 (21.09 kg)
AC FREQUENCY 60-150 (Hz)
AC BALANCE 60-90 (%Electrode Negative)
PULSE 0.1-20 (Pulses per second)


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