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10261133 - Tweco 420C Water-Cooled Fume Extraction MIG Gun, 10ft, Tweco Connection

Packaging: 1 per ea
$4,311.78/ea $2,635.01/1 per ea only $2,635.01/eaSave 39%

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OVERVIEW

Breathe Easier with the Tweco 420C Fume Gun

Upgrade your welding setup with the ESAB Tweco 420C Water-Cooled Fume Extraction MIG Gun, the ultimate solution for welders who demand both power and clean air. Welding fumes are not just a nuisance; they are a health hazard and a visibility issue. This specialized MIG gun sucks smoke away right at the nozzle, giving you a clear view of the puddle and keeping the air around you significantly cleaner. It is the perfect tool for shops looking to improve operator health and comfort without installing massive overhead hood systems.

Built for Heavy-Duty Welding

Don't let the vacuum feature fool you; this is a serious industrial tool. The "WC" in the model name stands for Water-Cooled, meaning this gun is built to handle the heat. Rated for 400 Amps, it can tackle thick plate and long welds without breaking a sweat. The water-cooling system keeps the handle and neck cool to the touch, preventing the "hot hand" fatigue that plagues welders using air-cooled guns on high-amp settings. Whether you are welding structural steel, heavy equipment, or pressure vessels, the 420C delivers consistent arc performance.

User-Friendly Design

Tweco knows that a heavy, stiff gun ruins a welder's day. That's why the 420C is designed with a focus on ergonomics. The handle fits naturally in the hand, and the cable assembly—while complex—is flexible enough to allow for easy positioning in out-of-position welds. The 10-foot length is ideal for bench work or production cells where the wire feeder is close by, minimizing cable clutter and maximizing vacuum efficiency.

Easy Maintenance

Time is money, and you don't want to spend it hunting for exotic parts. The Tweco 420C uses standard Tweco consumables, including contact tips, gas diffusers, and nozzles. This means you can likely use the same inventory you already have for your other Tweco guns. The front-end parts are easy to change, and the vacuum shroud is adjustable to suit different joint configurations. Connect it to your high-vacuum extraction unit, hook up the water lines, and experience the difference of welding with clear air and a cool gun.

Additional Information
Amperage:400
Brand:Tweco
Cooling Method:Water Cooled
Cable Length:10 ft
Connection Type:Tweco
Process Type:MIG (GMAW), Flux Cored (FCAW)
Gun Type:Fume Extraction
Duty Cycle:100% @ 400A
Wire Diameter Range:0.035" - 1/16"
Packaging Description:1 per ea

INCLUDED

  • 1 x Tweco 420C Water-Cooled Fume Extraction MIG Gun
  • 1 x 10 ft Cable Assembly with Vacuum Hose
  • 1 x Tweco Style Rear Connection
  • 1 x Standard Consumable Kit (installed)

APPLICATIONS

  • Heavy Industrial Fabrication
  • Shipbuilding and Marine Repair
  • Structural Steel Welding
  • Tank and Vessel Manufacturing
  • Automotive Component Manufacturing
  • Training Centers and Welding Schools

FAQ

The Tweco 420C is generally rated for 400 Amps at 100% duty cycle when properly water-cooled.

Yes, this is a fume extraction gun and must be connected to a high-vacuum fume extraction unit to function as intended.

This model is water-cooled, requiring a water cooler or circulator to operate safely at its rated amperage.

This specific SKU (10261133) comes with a 10-foot cable assembly.

The gun is designed with an adjustable shroud to balance vacuum pressure and gas flow, preventing porosity while capturing fumes.

It uses standard Tweco style consumables, including contact tips, diffusers, and nozzles compatible with the 400 series.

It features a standard Tweco style rear connection for the power pin.

Yes, it is suitable for both MIG (solid wire) and Flux Cored (FCAW) applications, where fume generation is often higher.