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  Home > TIG Welders > Invertig 221 AC/DC >

HTP Invertig 221 TIG Welder Dual Voltage 110/220 Air Cooled - Temporarily Out of Stock
Invertig 221 TIG Welder HTP
Welding cart NOT included

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View Our Different Options:
220 Air Cooled
220 Water Cooled
Dual Voltage 110/220 Air Cooled
Dual Voltage 110/220 Water Cooled

Air Cooled Price $3,020.00

Availability:: Currently Unavailable
Product Code: 70221-12.5-2


Temporarily Out of Stock

Invertig 221 AC/DC Inverter TIG welder will allow you to produce welds with all types of metal! We increased the maximum welding current by 10% to a full 220 amps of rugged welding power. And we put the machine on a diet, the HTP Invertig 221 weighs in at only 40 lbs, so its easy to take right to the job! We also added the Invertig 221 DV (Dual Voltage) which welds on both 110 volts and 220 volts the ultimate in portability.

The Invertig 221 is packed with features many of our competitors dont even offer at twice the price! Its the only welder in its class with independent AC amperage adjustment. This feature gives you precise control over the heat input to both the workpiece and the tungsten by allowing you to separately adjust the electrode negative and electrode positive amperage.

Welding cart NOT included
Conventional transformer TIG welders have a fixed AC frequency of 60 Hz (same as your household current).
They use a pure tungsten electrode which forms a ball when welding AC. The Invertig 221 offers you the
ability to adjust the AC frequency from 20 Hz to 200 Hz the higher AC frequency gives you a more focused
arc with greater arc control. With an inverter, running a higher AC frequency, say in the 150 Hz to 200 Hz
range allows you to use ceriated, lanthanated, or thoriated tungsten sharpened to a point. Which:
TIG Welder Invertig 221 top view Allows the arc to jump from a point instead of
a ball, which provides unparalleled arc stability
and reduces "arc wandering".
Produces a more focused arc, resulting in a
narrower bead and making it much easier to
weld inside corners.
Minimizes the heat affected zone as the heat
is more concentrated, making it easier for both
the novice and professional to weld thin materials.

The 221 also gives you precise control over the
AC balance (from 10% to 90%) so you can
control the arc cleaning action.

The 221 is also an excellent DC welder too. The smooth, stable arc coupled with the 221s high speed pulse

DC pulse make intricate work on mild steel, 4130, stainless, inconel and titanium a breeze. High speed DC

pulse focuses the DC arc much like the AC balance focuses the AC Arc the end result more control

and less arc wandering. With a pulse rate of up to 999pps, there isnt a job out there the 221 cant handle.

Lets face it, control of the arc is the foundation of better welds and precision results. With the 221s

independent AC amperage adjustment, adjustable AC frequency, adjustable AC balance, and high speed

DC pulse, the 221 gives you arc control like you never before experienced.

The 221 allows you to store up to 64 separate welding programs. So, say you found a setting you really like

for welding aluminum radiator tanks to cores. AC On, HF On, Max Current = 180 amps, AC Balance = 65%, AC Frequency = 180 Hz, EP = 60%, Pulse Freq 1 Hz, Peak Time 80%, Background Current 30%. Simply

store this program and you can come back to it when you have another tank to core job. Assigning banks

of memory slots to multiple welders allows them to access their personal settings in a job shop environment.

Our Dual Voltage model can be ordered with or without a Water Cooler.

Conventional arc welding is really simple with the Invertig 221. Using the stick mode in

conjunction with the foot pedal, allows you to vary the welding amperage. Perfect when doing pipe welding!

Select the touch start mode for welding aluminum or any other material without High Frequency. This is

important if your application takes you near sensitive electronic equipment, such as on site repairs in a

hospital or repairing aluminum vehicles with on-board computers.

This package of power weighs just 50 lbs and fits into a cabinet measuring 19-3/4" long by 7-1/2" wide by 15-3/4" high. The Invertig 221 package includes the Invertig 221 power source, a 12-1/2' 17-Series air-cooled TIG torch, 12-1/2' foot pedal, 10' ground cable and clamp assembly, a 6' gas hose, and a flowmeter. Welding cart NOT included.

The advanced technology found in the Invertig 221 will allow you to produce professional quality welds in all

types of metal quickly, easily and affordably. And every Invertig 221 comes with our 90-Day Money-Back

Guarantee. We are so sure you will love your Invertig 221 that you can try it in your own shop for 90-days

if for any reason you dont like it we will take it back, no questions asked. Further, we back the machine

with a 3-year warranty.

The HTP Invertig 221/221DV SHIPS FREE anywhere in the Contiguous United States (i.e., the lower 48). If your ship to address is in Alaska, Guam, Hawaii, Puerto Rico, or any other U.S. Territory outside of the Contiguous United States, partial shipping charges will apply. You may still place your order online, but you will be contacted by Customer Service to arrange and pay for partial shipping.

Specifications Invertig 221 Invertig 221 DV
Input Voltage 208-240 Volts 208-240 Volts 115 Volts
Input Amperage TIG 36 amps @ 220 amps 26 amps @ 220 amps 30 amps @ 130 amps
Output Amperage TIG 4 to 220 amps 4 to 220 amps 4 to 155 amps
Duty Cycle 20% @ 220 amps
60% @ 165 amps
100% @ 145 amps
20% @ 220 amps
60% @ 165 amps
100% @ 145 amps
20% @ 155 amps
60% @ 130 amps
100% @ 110 amps
No Load Voltage 65 volts 65 volts 44 volts
Stick Welding Amps 200 amps 200 Amps 140 Amps
Arc Voltage 10.2 to 18.8 volts 10.2 to 18.8 volts
Torch Length/Type 12.5' SR17 or SR20 12.5' SR17 or SR20
Foot Pedal Length 12 ft 12 ft
Ground Cable Length 10 ft 10 ft
Slope Down .1 to 10 sec .1 to 10 sec
Pre-Gas Flow .1 to 2 sec .1 to 2 sec
Post Gas Flow .1 to 30 sec .1 to 30 sec
Final Current 10% to 90% 10% to 90%
Pulsing Frequency 0.1 to 999 Hz 0.1 to 999 Hz
Back Ground Current 10% to 90% 10% to 90%
Peak Time 10% to 90% 10% to 90%
Spot Welding Time .1-10 sec .1-10 sec
AC Frequency 20 to 200 Hz 20 to 200 Hz
AC Balance 10 to 90% 10 to 90%
Weight 48 lbs. 50 lbs.
Size 19 L x 7 W x 15 H 19 L x 7 W x 15 H

CA Prop 65 - For Residents of California

Warning: Welding and cutting equipment, accessories, and fumes can expose you to chemicals, including Chromium (Hexavalent Compounds), Lead, and Nickel, which are known to the State of California to cause cancer and/or birth defects or other reproductive harm.

For more information, please visit

Accessories for this product...
A) TIG Welding Gloves - Large - Temporarily Out of Stock Q.2) TIG Torch Holder 12.5' Momentary/Arc Start Switch Short Pyrex Cup Kit for 17, 18, & 26 Series TIG Torches

List: $17.95

Our Price: $89.95

Sale Price: $60.95

TIG Welding Gloves Photo TIG Torch Holder Photo Momentary/Arc Start Switch for HTP Invertig 221 & Invertig 221DV Pyrex Cup Kit for 17, 18 & 26 Series TIG Torches Photo
25' Momentary/Arc Start Switch Adjustable Tungsten Grinder 25' Ground Cable & Clamp Assembly - Invertig 221/221DV Upgrade Only Flex Neck TIG Torch Head for 17 Series Torches
Our Price: $104.95

Sale Price: $299.95

Our Price: $75.00

Our Price: $47.95

Momentary/Arc Start Switch for HTP Invertig 221 & Invertig 221DV Adjustable Tungsten Grinder Photo 25' Long Ground Clamp Flex Neck TIG Torch Head for 17 Series Torches Photo
Optional Upgrade - 25' 17 Series Air Cooled Torch & Foot Pedal for Invertig 221 MIG/TIG/Plasma Cart - Temporarily Out of Stock C) OPTIONAL UPGRADE (Price Only Valid When Purchasing a New Invertig 221 or a New Invertig 221DV) 25' Slider Hand Amperage Control - Foot Pedal Not Included CK Steady Grip - HTP Invertig 221 7 Pin TIG Welders
Our Price: $60.00

Sale Price: $149.95

Our Price: $48.00

Our Price: $272.96

25' TIG Torch & Foot Pedal Invertig 221 TIG Welder MIG/TIG/Plasma Cart Photo Hand Amperage Control - Slider for TIG Welders CK Steady Grip for HTP Invertig 221 TIG Welders Photo
C) OPTIONAL UPGRADE (Price Only Valid When Purchasing a New Invertig 221 or a New Invertig 221DV) 25' Rotary Hand Amperage Control - Foot Pedal Not Included Tungsten Grinder TIG Parts Kit for 17, 18 & 26 Series Torches 15' Electrode Holder & Cable
Our Price: $48.00

Sale Price: $239.99

Sale Price: $39.95

Our Price: $60.90

Hand Amperage Control -Rotary Tungsten Grinder Photo Tig Parts Kit for 17, 18 & 26 Series Torches Photo 15' Electrode Holder & Cable
15' Ground Clamp/Electrode Holder Extension Cable Heel Rest for TIG Foot Pedal B) TIG Welding Gloves - Extra Large - Temporarily Out of Stock Cover for Invertig 221
Our Price: $60.00

Our Price: $19.99


Sale Price: $55.00

Ground Extension SSC Heel Rest for TIG Foot Pedal TIG Welding Gloves Photo Cover for Invertig 221 TIG Welder Photo

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 1 Write a review.

  0 of 0 people found the following review helpful:
5 of 5 Invertig 221 DV January 17, 2014
Reviewer: Scott Evans from Simi Valley Ca.  
I have been using the Invertig 221 DV air cooled machine for a few months now. I have been using it only on 110V. It seems to have plenty of power for all my needs. The foot pedal is nice. I ordered mine with a flexy torch head. I really love it! The superflex hose is amazing. Makes the torch feel so light.
The machine has a lot of bells and whistles, but it's very easy to set up and adjust.
The fan at idle is so quiet I don't know the machine is on. When you get on the power you can hear the fan spool up. Once off the pedal it goes right back down to nothing.
I would buy again and I tell all my friends about it.
Thanks HTP!

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