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10461108 - Tweco Smoke Master SM400 Fume Extraction MIG Gun - 400A, 15ft, 1/16in, Tweco Connection

Packaging: pack of 1
$5,317.09/EA $3,346.86/pack of 1 only $3,346.86/EASave 37%

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OVERVIEW

Breathe Easier with the Tweco Smoke Master

Welding produces smoke, and breathing that smoke day in and day out takes a toll. The Tweco Smoke Master SM400 is your first line of defense against hazardous welding fumes. Instead of relying on a hood vent ten feet above you, this gun sucks the smoke right from the weld puddle before it ever reaches your breathing zone. It’s like having a vacuum cleaner built right into your torch, clearing the air so you can see your puddle better and breathe cleaner air.

Don't let the safety features fool you; this is still a heavy-hitter MIG gun. Rated at 400 Amps, it handles the heat of heavy structural welding and flux-cored wire with ease. This model comes set up with a 15-foot lead and is ready to run 1/16-inch wire right out of the box. The handle is designed to be as ergonomic as possible, balancing the extra weight of the vacuum hose so you can weld comfortably for longer shifts. Plus, it uses the Tweco consumables you already know and trust, so finding replacement tips and nozzles is never a headache.

Key Benefits for the Welder:

  • Clear Visibility: By removing the smoke instantly, you get a crystal-clear view of the arc and puddle.
  • Healthier Environment: Drastically reduces your exposure to nasty stuff like manganese and hex chrome.
  • Control at Your Fingertips: An adjustable slide on the handle lets you dial back the suction if you feel it's pulling too much gas, giving you total control over your weld quality.
Additional Information
Brand:Tweco
Amperage:400
Packaging Description:1 Per Ea
Cable Length:15 ft
Wire Diameter Capacity:1/16" (1.6 mm)
Cooling Method:Air Cooled
Connection Type:Tweco Style
Process Type:MIG (GMAW), Flux Cored (FCAW)
Duty Cycle:60% @ 400A

INCLUDED

  • Tweco Smoke Master SM400 MIG Gun Assembly
  • 15 ft (4.6 m) Cable with Integrated Vacuum Hose
  • Conductor Tube (60 Degree)
  • Contact Tip (1/16" installed)
  • Gas Diffuser
  • Nozzle
  • Liner (1/16" installed)
  • Tweco Rear Connection

APPLICATIONS

  • Heavy Industrial Fabrication
  • Shipbuilding and Marine Repair
  • Structural Steel Welding
  • Tank and Vessel Manufacturing
  • Confined Space Welding
  • Stainless Steel Welding (Hexavalent Chromium Control)
  • Flux Cored Arc Welding (FCAW)

FAQ

The Tweco Smoke Master requires a high-vacuum, low-volume fume extraction unit. It is not designed for use with standard shop vacuums or low-vacuum high-volume systems.

If the vacuum flow is set too high, it can disturb the shielding gas. The gun features an adjustable slide valve to regulate suction and prevent porosity.

It typically uses standard Tweco 14 Series contact tips and nozzles, along with specific gas diffusers designed for the Smoke Master series.

The SM400 is an air-cooled MIG gun rated for 400 Amps at 60% duty cycle.

Yes, by changing the liner and contact tip, you can adapt the gun for different wire diameters, though this specific SKU comes set up for 1/16".

Due to the integrated vacuum hose and shroud, it is heavier and bulkier than a standard 400A gun, but the ergonomic handle helps balance the weight.

This model features a standard Tweco-style rear connection.

Yes, it comes pre-installed with a liner suitable for 1/16" wire.