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PowerARC 140STI



  • Lightweight
  • digital_display
  • igbt_equipped
  • _dc
  • 1_phase

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If you are looking for maximum flexibility and performance in a small utility class welder package, look no further than the PowerARC 140ST from Everlast.   This tiny IGBT inverter welder  features both Stick and DC Lift TIG capability.  It comes with its own carry case and includes the Stick torch with the cable and DINSE style connector,  gas valve TIG torch with cable and DINSE connector and the work clamp.

The welding arc stability isn't sacrificed with this small unit.  The arc quality is on the level of much larger, commercial class machines.   The welder features both auto adaptive Hot start and auto adaptive arc force control in Stick mode and improves weldability in with hard to start welding electrodes and in situations where rod sticking can be a problem.   One of the best features the PowerARC 140ST  has to offer is the 120V/240V dual-voltage capability, which allows the unit to go and weld virtually anywhere there is a clean power source available.

Remember: The regulator is optional, so be sure to buy one of our gas regulators if you plan to use it for TIG.


PLEASE NOTE: Everlast Welders Australia strongly recommends the use of a 15A RCD box between the machine and wall socket during use. To achieve the maximum performance out of your Everlast Machine please ensure your current breaker and wiring/socket setup at your place of use is sufficient enough to achieve this. For example you may be required to upgrade your breaker to a 32A dedicated circuit to suit, therefore allowing you to achieve your machines full duty cycle. If in doubt please contact your local licensed electrician for more info prior to purchasing and please see terms and conditions/warranty for more information. 


Download PDF Manual HERE

Out of stock


  • Compact and portable with carry case
  • IGBT Stick/Lift start TIG welder
  • Lift TIG function with standard 17 series gas valve torch
  • 120/240V Dual voltage design
  • Simple, easy to use
  • Auto adaptive hot start
  • 140 amp max output (DC only)
  • Perfect for hobby, and professional work


  • IGBT Type: Individual IGBT
  • Inverter Type: Digital/Micro-controlled
  • Output Type: DC Stick, DC TIG
  • Voltage/phase: DUAL VOLTAGE 120/240 1 PHASE
  • Max Rated TIG Amps: @240V:  140A
  • Max Rated Stick Amps: @240V: 140A
  • TIG Amps @ Rated Duty Cycle: @240V: 140A/25.6V @ 35% Duty Cycle/ 40º C - 110A/24.4V @ 60% Duty Cycle/ 40º C - 85A/23.4V @ 100% Duty Cycle/ 40º 
  • Stick Amps @ Rated Duty Cycle: @240V: 140A/25.6V @ 35% Duty Cycle/ 40º C - 110A/24.4V @ 60% Duty Cycle/ 40º C - 85A/23.4V @ 100% Duty Cycle/ 40º C
  • Max Inrush ( I1MAX ) Amps: 220V: 24.2A
  • Maximum Rated (I1EFF ) Input Amps: 220V: 15.7A
  • OCV: 70V
  • TIG Output Range DC: @240V: 10A-140A
  • Stick Ouput Range DC: @240V: 10A-140A
  • Stick Hot Start Amps: 0-100%
  • Stick Function: Adjustable Arc Force Control
  • Stick Hot Start Type: Adjustable Hot Start
  • Stick Hot Start Time: 0-100%
  • 6010/Cellulose Capable: Limited to 6011
  • Minimum Amp DC TIG Start: 5A
  • TIG Start Type: Live Lift TIG
  • TIG Start Type: Lift Start only
  • Memory: No
  • Foot Pedal: None/Not Applicable


Stick (Not E6010 Rated)


  • Weld with a maximum of 1/8" diameter electrode (Maximum electrode diameter depends upon type and brand)
  • Weld with a minimum of 1/16" diameter electrode



  • 20 gauge
  • 1/8" (Single Pass) 3/8" (Multi-pass, practical limit)

*Not for welding Aluminum or Magnesium


  • Single Phase 240v New Digital Mma/Tig Machine
  • Sr-17v-3m Torch
  • 3m Electrode & Earth Cable
  • 400a Australian Style Electrode Holder


  • Power Cart 250
  • NOVA Welding and Fabrication Table
  • NOVA Clamp and Tool Kit
  • Argon Regulator
  • 17 Series TIG Consumables Kits


This unit needs a minimum of 3500/6000 surge watts (120V/240V) to operate properly. Use with generators certified as clean power by the generator manufacturer ( no more than 5% total harmonic distortion). Damaged cause by operating on generators that are not the proper size and type are not warrantied.

Not recommended for welding with E 6010. 

Not for TIG welding aluminum. TIG is DC output only.

This unit is not foot pedal or remote capable and does not have a built in gas solenoid to control gas flow.

The unit features lift start TIG for TIG arc initiation.

Regulator not included.  May require a minimal amount of additional fittings to connect TIG torch to regulator.