Maxstar® 150 STL TIG Welders | Miller - MillerWelds

Maxstar® 150 STL 120-240 V

Light weight and portable DC output TIG/Stick machine that utilizes Lift Arc™ technology for TIG arc starting.
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What's Included

  • Maxstar® 150 STL
  • 10 ft. (3 m) primary cord with MVP™ plugs for 120 V (219261) and 240 V (219258)
  • 12 ft. (3.8 m) stick electrode holder
  • 10 ft. (3 m) work cable with clamp
  • Adjustable shoulder strap
Use On 115 AND 230 Volt Input Power
Miller's Multi Voltage Plug (MVP) allows you to connect to common 115 or 230 volt power receptacles without the use of any tools.  Simply choose the plug that fits the receptacle and connect it to the power cord.
Compact Design Allows For Great Portability
At less than 14 pounds, this little inverter-based TIG/Stick machine can be taken anywhere. It's an excellent tool for the maintenance and repair professional who needs a welder that can be easily taken to the job.  This eliminates the need for long lead extensions and eliminates unwanted cable clutter.
Latest Inverter Technology Provides Amazing Power Per Pound Performance
By utilizing an inverter-based power source in the Maxstar 150s, superior arc starts and excellent weld puddle control are provided in both the TIG and Stick settings - all in a small, light-weight package.
No Need For A Gas Valve On Your TIG Torch
With a built-in gas solenoid, the Maxstar 150 eliminates the need for a bulky TIG torch with a gas valve.

Not Included

  • TIG torch
  • Argon shielding gas
  • Filler rod
  • Personal safety products (helmet, gloves)
  • Your local welding distributor can provide shielding gas, filler rod and a full product offering.


Product Literature

DC/27.1 Maxstar 150 STL -Spanish



Stick (SMAW)

General Specifications

Title Maxstar® 150 STL 120-240 V
Industries Interests Aerospace
Heavy Equipment Manufacturing
Boat / Yacht
High Purity Processing
Material Thickness Steel: 0.020 in. (0.5 mm) - 3/16 in. (4.8 mm)
Weldable Metals Stainless Steel
Input Voltage 110/115/120 V
208 V
220/230/240 V
Input Phase 1-Phase
Input Hz 50 / 60 Hz
Current Type DC
Max Open Circuit Voltage 90 VDC
Amperage Min 5 A
Amperage Max 150 A
Warranty Miller's True Blue Warranty
Portability Handle(s)
Running Gear / Cart (Optional)
Weld Output CC




Reviews & Ratings

Rated 5 out of 5 by from This product performs extremely well, small size notwithstanding ! I purchased the Maxstar 150STL for use at our family cottage in North West Ontario. In the year since it's purchase it has performed many varied tasks be it fabricating steel docks to repairing parts on small equipment. All in all I am totally impressed with this little giant. Based on my experience with this and other Miller products and my need to weld aluminum, I presently have a Miller 200DX on order. Thank You
Date published: 2013-05-12
Rated 4 out of 5 by from fancy case only an asset if you move the welder arround a lot. welds easily cleanly and quick to set up for both tig and stick modes.
Date published: 2013-05-04
Rated 5 out of 5 by from fantastic product As a full time sheet metal fabrication shop we currently are using 8 of these machines in the shop and 2 in the field. The great parts about this machine is its versatility and compact size. We use these machines all day, every day with no issues. It took over five years of this sort of abuse before we had any kind of equipment failure. My personal opinion is these machines are the best on the market for there size and capacity. Thanks to Miller for making a great product.
Date published: 2013-05-01
Rated 4 out of 5 by from lightweight and portable The Maxstar 150 is easy to use and goes to some tough sites. We own 4 of these units and 22 other Miller products, from diesel to gas and electric. We weld every day. We have always recieved great service from top to bottom of the chain- Distributers to the Tech. support to sales, never any problems.
Date published: 2013-05-01
Rated 5 out of 5 by from Awesome Welder We use these welders every day/all day. I currently have 8 of these welders. I get two to three years out of them, which i consider really good considering how hard we run these welders. They are light and portable and when hooked up to 220V they weld really hot.
Date published: 2013-04-30
Rated 5 out of 5 by from Best compact welder Dont let the size fool you this is a power pack and can keep up with welders twice the size.
Date published: 2013-04-30
Rated 5 out of 5 by from Good Portable Nice and Lite, Great Tig machine, Handy welding for small repairs. Good storage Case.
Date published: 2013-04-30
Rated 5 out of 5 by from One of the best field welders ive used to date. I've been using a maxstar 150 for the past 2 years at work in a meat packing plant and I can say it withstands the abuse it goes through, perfect portable machine lightweight and easy to use, and now I have one at home that works wonders on stainless steel exhaust systems and turbo tubular headers, worth every penny in my opinion.
Date published: 2013-04-30
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