Maxstar® 150 STH TIG Welders | Miller - MillerWelds

Maxstar® 150 STH 120-240 V

Light-weight and portable DC output TIG/Stick machine that utilizes both non-contact HF and Lift Arc™ TIG arc starting, plus built in pulser.
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What's Included

  • Maxstar® 150 STH
  • 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 120 and 240 Volt Input Power
Miller's Multi-Voltage Plug (MVP) allows you to connect to common 120 or 240 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 lbs, 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 with them to the job.  This eliminates the need for long lead extensions and eliminates unwanted cable clutter.
Easier to TIG Weld Thin Gauge Material
Too much heat added to thin material usually ends up in warpage of the item being welded. By using the Pulser feature included in the Maxstar 150 STH, you minimize the heat put into the work piece. This allows you to weld that thin material with less warpage. We've also taken much of the complication out of deciding what pulse frequency to select, because we've streamlined the setting choices down to four of the most used fixed pulse frequencies.
Latest Inverter Technology Provides Amazing Power Per Pound Performance
By utilizing an inverter-based power source in the Maxstar 150s, we are able to provide superior arc starts in both the TIG and Stick settings along with excellent weld puddle control 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.
  • Protective Miller X-Case (300184)
  • Regulator/flow gauge and gas hose


Product Literature

DC/27.2 Maxstar 150 STH - Spanish



Stick (SMAW)
Pulsed TIG (GTAW-P)

General Specifications

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




Reviews & Ratings

Rated 4 out of 5 by from Great tig, ok stick Easy to use. Smooth tig arc. 5p not so hot. Small package is great. I would have been much happier if it came with a foot pedal instead of the the finger switch.
Date published: 2013-04-30
Rated 5 out of 5 by from great welder Great welder and size. Very mobile as i use a generator to use it because i dont have a 220 outlet. 5500 wats to run this on generator minimum. Welds great. Price was a little high but price dont matter when you deal with companys as great as miller. Possibly looking into an ac machine for aluminum. Pretty sure that will be a miller too.
Date published: 2013-04-30
  • 2015-11-29T06:40CST
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