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Millermatic® 180 Auto-Set™ MIG Welder

All-in-one wire welder that welds 24 gauge - 5/16 in. (0.8 - 7.9 mm) mild steel.

Millermatic 180 Auto-Set
  • Millermatic 180 Auto-Set
  • Millermatic 180 Auto-Set Front Panel
  • Millermatic 180 Auto-Set Inside


A breakthrough control that automatically sets your welder to the proper parameters. Auto-Set offers all-in-one MIG minus the guesswork!

Welds Thickest Material in its Class

...With the highest output in its class! Can weld up to 5/16 in. in a single pass.


This technology provides a smooth, spatter-free start. The best starting machine in the small MIG category! No pop-gun starts or spatter to clean up.

Thermal Overload Protection

Shuts down the unit and activates over temperature light if airflow is blocked or duty cycle is exceeded. Automatically resets when fault is corrected and unit cools. See how it works.

Spool Gun Compatible!

Finally a reliable and economical way to weld aluminum. Hooked up to a 180 Auto-Set, the Spoolmate 100 Series spool gun allows you to weld from 18 gauge to 1/4 in. aluminum.  

Manual Mode

Gives you the flexibility to manually set the machine when welding aluminum, stainless steel or anytime you want to set your own parameters on mild steel.

Durable Cast Aluminum Drive System

Incorporates dual groove quick-change drive roll and spring-loaded tension arm with calibrated tension knob all designed to make setup easier and faster.

'Tip Saver' Short Circuit Protection

Shuts down output when tip is shorted to the work. Extends contact tip life and protects internal components from damage. Trigger reset permits quick reset at torch rather than unit. See how it works.


Stock #

XMT® 350 VS ArcReach™ 907224002

XMT® 450 VS ArcReach™ 907481002

SuitCase® X-TREME™ 8VS ArcReach™ with Bernard® S-Gun™ 951588

SuitCase® X-TREME™ 8VS ArcReach™ with Bernard® Q300 Gun 951584

SuitCase® X-TREME™ 12VS ArcReach™ with Bernard® S-Gun™ 951589

SuitCase® X-TREME™ 12VS ArcReach™ with Bernard® Q300 Gun 951581

Product Literature
Spec Sheet (ENG)
Spec Sheet (SPA)
Spec Sheet (FRE)
Aluminum Systems Brochure
ProcessesMIG (GMAW) 
Flux Cored (FCAW) 
Material Type
Max 5/16 in (7.9 mm)
Mild Steel
Min 24 ga (0.8 mm)
Max 1/4 in (6.4 mm)
Min 18 ga (1.2 mm)
*Aluminum welding uses optional Spoolmate 100 series spool gun and 4043 Series aluminum wire.
General specificationsInput Power
Requires 1-Phase power
230 V, 21.7 A, 60 Hz
Rated Output
135 Amps at 22.5 VDC, 30% Duty Cycle
Welding Amperage Range
30 - 180 Amps
Wire Speed
95 - 565 IPM (2.4 - 14.4 m/min)
Net Weight72 lb (32.7 kg)
WireDiameter Capacity
.024 - .035 in (0.6 - 0.9 mm) Solid Steel
.024 - .035 in (0.6 - 0.9 mm) Stainless
.030 - .045 in (0.8 - 1.2 mm) Flux Cored
MaxSpoolSize Capacity
8 in (203 mm)
ApplicationsAluminum Welding 
Farm and Ranch 
Field Maintenance and Repair 
Mechanical Contracting 
Metal Art/Sculpture 
Motorsports (car, truck, bike, etc.) 
Welding Projects 
Spool Gun Option SPOOLMATE 100 SERIES See Spool Gun Hook-up Chart

Powerline Financing