In Stock & Ready to Freight Welding Equipment Old stock

Aspect 375 Ready-Pak Ac/Dc TIG Welder

Brand: Lincoln Electric
Condition: New
Regular price $6,936.71 Save $2,081.01
Sale price $4,855.70
Sale price ends Mon Nov 30, 11:59 PM PT
+ freight from $295.00, insured LTL, priced by delivery zone (rates)
From $5,150.70 delivered
  • Palletized and heavy shrink-wrapped for freight
  • LTL carrier delivery with optional liftgate service
  • Ships in 1–2 business days from Los Angeles, CA
  • Transit typically 3–14 business days, continental US
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Details & Inspection Notes

This AC/DC TIG machine is rated across a 2-to-375-amp range, aimed at shops working aluminum and mild steel where precise, repeatable arc control matters more than raw output. It is a three-phase-capable unit built for career-level TIG work rather than occasional use, with 208V, 230V, 460V, and 575V input options.

Arc-control features

An automatic start mode softens arc initiation and limits distortion on thin material without the operator dialing it in manually, while a separate balance function automatically finds the mix of cleaning and penetration needed when welding aluminum. For shops that want to fine-tune further, a manual wave-shape control lets an operator adjust AC frequency, balance, and offset directly to change how the arc cleans, penetrates, or holds its profile.

Before you order

  • Processes covered are stick and TIG only; confirm that matches your shop's needs
  • Duty cycle is rated 40 percent at full output and 60 percent at 300 amps
  • Shipping weight is 290 pounds, and it is rated for Career Welder skill level
  • Input voltage options are 208, 230, 460, and 575 volts; confirm your shop's service matches before ordering

Lincoln covers this new machine for 3 years, and its build uses mild-steel and aluminum-compatible components throughout.

Can I switch between automatic and manual arc settings? Yes, both an automatic mode and full manual wave-shape control are built into this machine.

Is this machine limited to thin aluminum work? No, the rated amperage range runs up to 375 amps, with a 60 percent duty cycle at 300 amps.

Specifications

More Information
Brand Lincoln
SKU ILIN20140046
MPN LINK3946-2
Mfgs MPN K3946-2
UPC 015082592329
Prop65 Yes
Material Aluminum, Mild Steel
Process Stick, TIG
Max Amperage Output 375
Usage Heavy Industrial
Phase Both
Manufacturer’s Warranty 3 Years
Polarity AC/DC
Duty Cycle 40%
Duty Cycle 60% at 300A
Portability 290 lbs
Skill Level Career Welder
Input Voltage 208, 230, 460, 575
Discontinued Product No

Welding Equipment Setup & Pre-Operation Checklist

  • Verify workshop mains voltage, circuit breaker rating, and phase match the welding machine specifications.
  • Inspect ground clamp cable, torch lead, and work cables for tight, clean, low-resistance connections.
  • Secure shielding gas cylinders upright with safety chains; inspect regulator and hose connections for gas leaks.
  • Confirm correct wire diameter, drive roll groove profile, and contact tip size match the spool installed.

Full terms: 30-day warranty · returns