Miller Maxstar 280 (Auto-Line 208-575 V) Tig / Stick Welder 907552

In stock
SKU: 907552
Regular price $6,874.00 USD

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 



  • 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 Balance, Frequency, Pulse and DIG parameters. 



Stick Features 

Tailored arc control (DIG) allows the arc characteristics 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.


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 


Air Carbon Arc Cutting and Gouging (CAC-A) 

Stick (SMAW) 






Maxstar® 280 208-575 V 

Industries Interests 

Heavy Equipment Manufacturing 
Boat / Yacht 
High Purity Processing 

Material Thickness 

Steel 0.004 in. (0.1 mm) - 3/8 in. (9.5 mm) 

Weldable Metals 

Specialty Metals 
Stainless Steel 

Input Voltage 

208 V 
220/230/240 V 
380/400 V 
460/480 V 
575 V 

Input Phase 

1- and 3-Phase 

Input Hz 

50/60 Hz 

Current Type 


Max Open Circuit Voltage 

60 VDC 

Amperage Min 

1 A 

Amperage Max 

280 A 


Running Gear / Cart (Optional) 

Weld Output 


Net Width 

8.6 in 

Net Height 

13.6 in 

Net Length 

22.5 in 

Net Weight 

47 lbs