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10471031 - Tweco WeldSkill 400 MIG Gun - 12ft - Miller Connection

Packaging: pack of 1
$901.24/EA $653.66/pack of 1 only $653.66/EASave 27%

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OVERVIEW

Upgrade Your Welding Experience with Tweco Reliability

For professional welders who demand comfort without sacrificing power, the Tweco WeldSkill 400 MIG Gun is the ultimate upgrade for your Miller welding machine. This 12-foot torch combines the legendary performance of Tweco with an ergonomic design tailored for all-day use. If you are tired of bulky, heavy, or unreliable stock guns, the WeldSkill 400 offers a refreshing blend of balance, grip, and arc stability that can help improve your weld quality and reduce wrist fatigue.

The heart of this gun is its ergonomic oval-shaped handle, which fits naturally in the hand and provides excellent maneuverability, even when wearing heavy welding gloves. The trigger action is designed to be responsive yet durable, rated for over a million cycles, ensuring you get a consistent arc start every time. The 12-foot cable length gives you the freedom to move around your workpiece without constantly dragging the feeder, while the high-quality liner ensures smooth wire feeding for both solid and flux-cored wires.

One of the biggest advantages for the welder is the use of Tweco's proven consumable platform. The WeldSkill 400 uses the classic 14 Series tips and adjustable slip-on nozzles, allowing you to easily clean spatter and adjust your contact tip stick-out for different joint configurations. Whether you are welding chassis frames, heavy equipment repairs, or structural beams, this gun delivers the heat you need with the control you want.

Why Welders Choose This Gun:

  • Superior Comfort: The handle design reduces grip strain during long welds.
  • Reliable Feeding: High-quality liner and cable geometry minimize bird-nesting and erratic feeding.
  • Cool Operation: Efficient air-cooling design keeps the handle temperature manageable even at high amps.
  • Easy Setup: Plugs directly into your Miller machine—no tools or adapters required.
Additional Information
Brand:Tweco
Amperage:400
Length:12 ft
Back End:Miller
Front End:Tweco
Wire Size:0.035" - 0.045"
Torch Type:MIG Gun, Air Cooled
Duty Cycle:60% @ 400A
Cooling Method:Air Cooled
Consumable Compatibility:14 Series Tips, 24 Series Nozzles, 54 Series Diffusers
Handle Style:Ergonomic Oval
Applications:Heavy Equipment, Structural Steel, Fabrication
Packaging Description:pack of 1

INCLUDED

  • 1 x Tweco WeldSkill 400 Amp MIG Gun (12 ft)
  • 1 x Standard Contact Tip (.035" installed)
  • 1 x Nozzle (Standard 1/2" bore)
  • 1 x Diffuser
  • 1 x Steel Liner (pre-installed)
  • 1 x Miller-Style Rear Connector

APPLICATIONS

  • Heavy Equipment Manufacturing
  • Structural Steel Fabrication
  • Shipbuilding and Offshore
  • General Industrial Fabrication
  • Automotive and Transportation
  • Farm and Agriculture Repair

FAQ

This gun uses standard Tweco consumables, including 14 Series contact tips, 24 Series nozzles, and 54 Series gas diffusers.

Yes, this model (1047-1031) comes with a Miller-style rear connection, making it compatible with most Miller wire feeders and integrated MIG machines.

The Tweco WeldSkill 400 is rated at 400 Amps at 60% duty cycle when using CO2 shielding gas.

It is generally set up for .035" to .045" (0.9mm - 1.2mm) wire out of the box. You can run other sizes by changing the liner and contact tip.

The WeldSkill 400 is an air-cooled MIG gun.

This specific SKU features a 12-foot (approx. 4 meters) cable assembly.

Yes, the gun is rated for both MIG (GMAW) and Flux-Cored (FCAW) welding processes.

Yes, it comes pre-installed with a steel liner suitable for standard steel wires.