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EXtreme360 Multi-Process Welder

EXtreme360 Multiprocess WelderEXtreme360 Welder Multipack

Top Features

  • DC CC CV
  • 350 Amps at 60% Duty-Cycle Output
  • Adjustable Arc Control
  • Available in 4Pak and 8Pak Configurations
  • Processes: Stick (SMAW), TIG (GTAW), MIG (GMAW), Pulsed MIG, Flux-Cored (FCAW)

The EXtreme360 is a 350 amp at 60% duty cycle, constant current/constant voltage, DC inverter welder.Standard features include Auto-Line, Ammeter and Voltmeter, adjustable Arc Control, full Remote Control capability and Extreme-Duty construction

Product Details


Voltage Input: 208-575/1/3/50/60
Rated Output: 350 A at 34 VDC, 60% duty cycle, 3-phase
300 A at 32 VDC, 60% duty cycle, single-phase
Welding Amperage Range: 5 - 425 A, in CC mode
10 - 38 V, in CV mode
Weight: 80 lb (36.3 kg)
Dimensions: H:17" (432 mm) W:12.5" (318 mm) D:24" (610 mm)
Input Power Range: 208-575/1/3/50/60


Stick (SMAW)



Pulsed MIG
  • Pulsed MIG (GMAW-P) with optional Optima Control

  • Flux-Cored (FCAW)

    Additional Features

    Auto-Line Power Management Technology allows for operation with any type of primary power from 208 to 575 VAC, single- or three-phase, 50 or 60 hertz, with no manual linking required - ideal for dirty or unreliable input power. 4Pak and 8Pak Multioperator units include DP120 Panels and operate with 460/575/3/60 input power. Wind Tunnel Technology protects electrical components and PC boards from contamination. Fan-On-Demand cooling system operates only when needed, reducing noise, energy use and amount of contaminents pulled through the machine. Lift-Arc allows TIG starting without the use of high-frequency. Starts the arc without contaminating the weld with tungsten. Adaptive Hot Start increases the output amperage at the start of the weld if necessary, eliminating electrode sticking. Inverter arc control provides greater puddle control for superior electrode performance. Line voltage compensation keeps power constant even if power input varies by ± 10% on 575 volt power and +37%/-59% on 460 volt power. Process selector switch reduces the number of control setup combinations without reducing any features. Large, dual digital meters are easy to view and presettable to ease setting weld output. Pulsed MIG capabilities with optional Optima control reduces spatter and distortion, allows better out-of-position puddle control, and provides potential reduction of fume particle emission. Lightweight, aerospace-grade aluminum case offers protection with the benefit of reduced weight. Optional 114 VAC auxiliary power is available.

    • CC/CV welding processes with full remote-control capability
    • Auto Remote Sense enables unit to automatically use remote control if connected to remote control receptacle
    • Potentiometer-type remote control
    • Exceptional electrical efficiency (87.24% efficiency at 400A)
    • Power factor of .95 enables smaller fuses/breakers and primary wiring
    • Selectable Low-OCV Stick mode reduces open circuit voltage to nearly 15 volts when welding power source is not in use
    • Extreme-Duty environmental protection with ultra-tough, poly carbonate-blended control panel cover
    • Tweco style output terminals
    • Wind Tunnel Technology protects electrical components and PC boards from contamination
    • Line Voltage Compensation keeps welding output constant with power variations of +/- 10%
    • CSA certified to both U.S. and Canadian Standards for welding equipment

    Options, Accessories and Related Equipment

    Remote control
    115 VAC auxiliary power
    Gas solenoid for TIG welding
    Water cooler
    Pulse MIG control
    Pulse TIG control
    Constant speed wirefeeders and spool guns

    Related Equipment
    Coolmate water cooler
    Optima pulse MIG control
    Intellitig-4 pulse TIG control
    LN25 wirefeeder
    RC1 remote control

    Used Multi-Process Welders

    EXtreme360 Multi-Process Welder

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    Airgas, an Air Liquide company, is the nation's leading single-source supplier of gases, welding and safety products. Known locally nationwide, our distribution network serves more than one million customers of all sizes with a broad offering of top-quality products and unmatched expertise.