PowerTIG 350EXT

  • Pulse up to 500Hz
  • No hidden menus to access or complicated set up routines
  • 350A/24V @ 35% Duty Cycle
Special Price $2,849.05 Regular Price $2,999.00
In stock

Need more power?  If you do, the PowerTIG 350EXT is the latest and most powerful member of Everlast's PowerTIG series of TIG/Stick welders.  This unit features up to 350 amps of TIG welding power and up to 270 amps of Stick welding power.   With the Advanced AC pulse feature this unit is capable of delivering considerably more TIG welding capability (thickness) than any other unit in it's class. This unit is designed to get the job done where thicker plate and weldments are common.  As far as features go, the PowerTIG 350EXT doesn't fall short either.  It has all the familiar features you'd expect and is similar to the PowerTIG 255EXT as far as basic layout and operation are concerned for those shops that want to upgrade to a heavier unit without retraining personnel.  Duty cycle is a favorable 35% at maximum output and is able to go the distance with its high output constant-on fan design.  While larger than the PowerTIG 255EXT, or the PowerTIG 325EXT, the unit is still very portable and can be ported around with little trouble.  As far as low end performance goes, this brute is far from clumsy.  It features a respectable 5A DC and 10A AC low end operation capability.  For your heavier applications, this unit will also pair well with our PowerCool 300 for water-cooled torch applications and features a 240V 1 phase cooler plug on the rear of the welder. 

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You're reviewing:PowerTIG 350EXT
Digital microprocessor control
Heavy-Duty IGBT Power Modules increase reliability and performance
Low amp operation down to 5 Amps DC and 10 Amps AC
2T/4T/ Pedal operation modes with additional 2T/4T mode for torch amptrol operation.
Wave form control in AC provides 4 wave forms: Sine, Triangular, Soft Square and Advanced Square Wave
New High Frequency start design reduces maintenance issues and improves start reliability
No hidden menus to access or complicated set up routines
Simplified menu design allows settings to be quickly selected and adjusted
Easy Start Up feature in AC or DC modes to make setup quick and easy for the beginner, or the advanced user
Pulse up to 500Hz in DC, 250 Hz AC
10Hz Advanced AC Pulse mode improves penetration on thicker metals, and can reduce warping and burn through on thinner metals
Arc force control, Hot start time, Hot start intensity settings for Stick welding to improve performance
VRD function to help reduce chance of shock or electrocution in areas where a VRD is required or needed for stick welding
Full time fan for maximum duty cycle operation
240V 1 phase operation
Spot Weld Timer
6010/Cellulose Stick welding capability
240V cooler plug located on rear
12.5 ft Everlast 18 Series TIG torch with 35 DINSE style connectors and torch switch for 2T/4T operation
12.5 ft Everlast 26 Series TIG torch with 35 DINSE style connectors and torch switch for 2T/4T operation
New style stick electrode holder with 10ft cable and 35 series DINSE style connectors
Heavy Duty Work clamp with 10 ft Cable and DINSE style connectors
New, redesigned compact foot pedal
New Everlast Regulator made from billet brass
Consumable Starter Kit (Tungsten not included)
6 ft Power input cable
IGBT Type:
Module IGBT
Inverter Type:
Output Type:
220/240 V 1 PHASE
Max Rated TIG Amps:
240V: 350A

Max Rated Stick Amps:
240V: 270A
TIG Amps @ Rated Duty Cycle:
350A/24V @ 35% Duty Cycle/ 40º C
280A/21.2V @ 60% Duty Cycle/ 40º C
210A/18.4V @ 100% Duty Cycle/ 40º C

Stick Amps @ Rated Duty Cycle:
270A/ 30.8V@ 35% Duty Cycle/ 40°C
210A/ 28.4V @ 60% Duty Cycle/ 40ºC
160A/ 26.4V @ 100% Duty Cycle/ 40ºC
Max Inrush ( I1MAX ) Amps:
@240V 1 ph: 47A
Maximum Rated (I1EFF ) Input Amps:
@ 240V 1 ph: 39A
80V/VRD: <24V

TIG Output Range DC:
TIG Output Range AC:
10A-350A/ 10.4V-24V
Stick Ouput Range DC:
Stick Hot Start Amps:
Stick Function:
Adjustable Arc Force Control
Stick Hot Start Type:
Adjustable Hot Start
Stick Hot Start Time:
0-2 Seconds
6010/Cellulose Capable:
Minimum Amp DC TIG Start:
Minimum Amp AC TIG Start:
TIG Start Type:
HF/Lift Start
TIG Start Type:
HF and Lift Start
Start Amp Range:
DC: 5A-350A
AC: 10A-350A
End Amp Range:
DC: 5A-350A
AC: 10A-350A

Upslope Time:
0-25 Seconds
Down Slope Time:
0-25 Seconds
Preflow time:
0-25 Seconds
Post Flow Time:
0-50 Seconds
TIG Pulse:
Standard DC Pulse Frequency:
.1-500 Hz
Standard AC Pulse Frequency:
AC Advanced Pulse Frequency:
Pulse Time On (Duty Cycle):
Pulse Amp Range:
AC Frequency (Hz):
AC Balance Range:
AC Wave Forms:
Advanced Square
Soft Square
Remote Control:
2T/4T with Torch Amptrol settings
Foot Pedal:
If using with a generator, be sure that the generator is rated by its manufacturer as clean power output. This means that the total harmonic distortion (THD) is less that 5%. Use a generator capable of at least 12000 surge watts for 240V 1 phase operation.

Weld steel to a maximum of 3/4" single pass
Weld steel to a maximum of 1+" multi-pass
Weld aluminum to a maximum of 3/4" single pass
Weld aluminum to a maximum of 1+" multi-pass
Weld to a minimum of .005" Steel
Weld to a minimum of .010" Aluminum
TIG ratings based off of industry accepted standard practices for quality single and multi-pass welds. AC advanced pulse, when adjusted properly can weld thicker than standard welders with 350 amps output and this is included in Steel and Aluminum maximum capacity statements.


Weld with a minimum of 1/16" diameter electrode
Weld with a maximum of 1/4" diameter electrode
Stick electrode maximum size is ultimately dependent upon type/class of electrode and manufacturer's recommendation.