Maxstar® 280 TIG Welders | Miller - MillerWelds

Maxstar® 280 208-575 V, CPS

The Maxstar 280 Series is a powerful combination of capability and portability. Weighing only 47 pounds, it can weld up to 3/8" thick material. The DC TIG/Stick power sources feature an energy-efficient inverter design and Auto-Line™ technology.
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What's Included

  • Maxstar® 280
  • 8 ft. (2.4 m) primary cord
  • Adjustable shoulder strap
  • (2) 50 mm Dinse style connectors
Base and Deluxe Models Available
Maxstar 280 - Base model provides essential TIG and Stick functions and provides operator-friendly, menu-driven features. Maxstar 280 DX - The DX model adds extended ranges to sequencer and full trigger options, preflow and pulser functions.
Portable with adjustable shoulder strap
Weighing in at just 47 pounds, the Maxstar 280 is extremely portable and easy to transport featuring dual carry handles and a carrying strap.
Upgradeable and Expandable
Front panel memory card data port provides the ability to easily upgrade software and expand product features. Visit for the latest software upgrades and expansions.
Cooler Power Supply (CPS)
An integrated 120-volt dedicated-use receptacle to power the Coolmate™ 1.3. The power switch on the Maxstar also activates the receptacle to help prevent torch failure. Available on select models.
Auto-Line Power Management Technology
Allows hookup to either single-phase or three-phase electrical input from 208-575 V with no manual linking, providing convenience in any job setting. An ideal solution for dirty or unreliable input power.
Pro-Set Feature (professional settings)
This feature eliminates the guesswork when setting weld parameters. Use Pro-Set when you want the speed, convenience and confidence of pre-set controls. Simply select the feature and adjust until Pro-Set appears on the display. The Pro-Set feature is available for Pulse and DIG parameters.
Stick Features (DC)
Tailored arc control (DIG) allows the arc characteristic to be changed for specific applications and electrodes. Smooth running 7018 or stiffer, more penetrating 6010.   Hot Start™ adaptive control provides positive arc starts without sticking.   Stick-Stuck detects if the electrode is stuck to the part and turns the welding output off to safely and easily remove the electrode. Menu selectable.
Weldcraft® W-280 (WP-280) TIG Torch
Two-piece torch head and exclusive Super Cool™ Technology provides additional surface area to increase cooling efficiency and capacity   Torch body includes an anti-rotation featureand multi-position locking to prevent handlemovement during welding and improve operator control   Mechanical fittings provide a secure gas andwater connection to prevent leakage and alloweasy hose replacement

Not Included

  • TIG torch adapter



Air Carbon Arc Cutting and Gouging (CAC-A)
Stick (SMAW)
Pulsed TIG (GTAW-P)

General Specifications

Title Maxstar® 280 208-575 V, CPS
Industries Interests Aerospace
Heavy Equipment Manufacturing
Boat / Yacht
High Purity Processing
Current Type DC
Input Hz 50 / 60 Hz
Input Phase 1- and 3-Phase
Portability Handle(s)
Running Gear / Cart (Optional)
Shoulder Strap
Input Voltage 208 V
220/230/240 V
380/400 V
460/480 V
575 V
Max Open Circuit Voltage 60 VDC
Weldable Metals Specialty Metals
Mild Steel
Stainless Steel
Warranty Miller's True Blue Warranty
CACA Thickness 3/16 in
Amperage Min 1 A
Amperage Max 280 A
Material Thickness Steel: 0.004 in. (0.1 mm) - 3/8 in. (9.5 mm)