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Precision TIG® 375 TIG Welder (Not Available in US)


Top Features

  • Tackle either end of the material thickness spectrum with the widest operating range in its class from 2 to 420 amps
  • AC Auto-Balance® automatically adjusts for the optimal mix of cleaning and penetration when welding aluminum.
  • Or, take full control - adjust the AC Auto Balance® to increase or decrease cleaning action or penetration on aluminum.
  • Standard pulse functions enable better control over heat input, resulting in less warping and distortion on thin metals

Input Power

  • 220-230/380-400/415/1/50/60


Stick, TIG



Input ModeInput Polarity
Input HertzInput Phase

MSRP: $1.00

Where To Buy

Equipment Details

When it’s time for thicker materials and heavier jobs, choose the Precision TIG® 375, which provides for the highest duty cycle in its class. The Precision TIG 375 also features a built-in TIG pulser, that can be activated to help control heat input in the weld and reduce distortion and burn-through on thin materials.



Simplicity through technology

AC Auto Balance® automatically provides for the optimal mix of cleaning and penetration for welding on Aluminum. When welding thicker material requiring increased penetration, or when requiring increased cleaning action to break through heavy oxide layers, bypass AC Auto Balance and adjust manually for full control.

Advanced Pulse Control panel (Standard on the Precision TIG 375)

Enable the TIG pulser to minimize material distortion from excessive heat input. The TIG pulser can also help moderate filler metal deposition for consistent bead appearance.

Wide output range

Tackle either end of the material thickness spectrum with an amperage range of 2 to 420 amps

Side-mounted torch holder and connections

Enables simple cable management and protection, and a place for your torch when not in use.

Input Power
  • 220-230/380-400/415/1/50/60
Rated Output
  • 375A/35V/40%
Input Current
  • 119/69/63A with PFC
Output Range
  • 2-420A AC
  • 2-420A DC
Dimensions (H x W x D) 31 in x 22 in x 26 in (787 mm x 559 mm x 660 mm)
Net Weight 507 (230 kg)


1. Minimum Output Control & Display Switch (Also displays output voltage)
2. Set-Up Menu
3. Digital Meter
4. Local/Remote Current Control Switch
5. Maximum Output Control
6. Post Flow Time
7. Thermal Shutdown Light
8. Downslope Time
9. Pulse Background Current Control
10. Pulse % On Time Control
11. Spot Time
12. Pulse Frequency Control
13. Polarity Switch
14. Power Switch
15. Pulse/Spot Time Mode Switch
16. Trigger Switch (2-Step/4-Step)
17. AC Balance Control
18. Mode Switch
19. Remote Receptacle (not shown)

Please note if you experience any trouble downloading when clicking on the link, right click and save to your computer using the save option.

Solid Edge (.par)
STEP (.stp)
Parasolid (.x_t)
ACIS (.sat)
Zip (.zip) (Includes all files listed above)

Product Number
Product Name
Undercarriage for Precision TIG 275/375
Remote Output Control 6 Pin - 25 ft. (7.6 m)
Hand Amptrol™ Rotary Track Style 25 ft (7.6m) (6-Pin)
Foot Amptrol™ - 25 ft. (7.6m) (6 pin)
Under-Cooler Cart Water Cooler
Undercarriage for Precision TIG 275/375
Under-Cooler Cart Water Cooler