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10361642 - Tweco Spray Master MS350 MIG Gun, 350A, 25ft, Miller Plug, 1/16 Wire

Packaging: pack of 1
$1,881.08/ea $1,364.30/pack of 1 only $1,364.30/eaSave 27%

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OVERVIEW

Legendary Comfort and Reach for Professional Welders

If you spend your day under the hood, you know that the gun in your hand can make or break your shift. The Tweco Spray Master MS350 is built with the welder in mind, featuring the classic ergonomic handle that has made Tweco a favorite in shops worldwide. The handle design naturally fits the curve of a gloved hand, reducing grip fatigue during long welds and allowing for precise manipulation of the torch angle. With this 25-foot model, you gain the freedom to move around large projects—like truck bodies or structural frames—without being tethered on a short leash to your feeder.

This gun isn't just about comfort; it's about staying cool under pressure. The Spray Master series is famous for its efficient air-cooling capabilities, keeping the handle temperature manageable even when you are pushing 350 Amps. The trigger action is crisp and reliable, designed to withstand thousands of cycles without sticking or failing. Plus, the Miller-style direct plug means you can hook it up to your existing Miller rig in seconds—no adapters or complex rewiring required.

Maintenance is a breeze with the Spray Master. The simplified front-end consumables are easy to swap out, and the conductor tube can be rotated to suit your welding position. This specific setup comes ready to run 1/16-inch wire, perfect for those heavy structural jobs where you need to lay down serious metal. Whether you are running flux-core or solid wire, the liner and tip setup ensures smooth feeding and stable arc transfer. Upgrade your rig with the gun that defines industrial reliability and experience the difference a 25-foot reach can make in your daily workflow.

Additional Information
Brand:Tweco
Amperage:350
Length:25 ft
Back End:Miller
Wire Size:1/16"
Cooling:Air Cooled
Torch Type:MIG Gun (GMAW)
Amperage Rating:350A
Duty Cycle:80% @ 350A
Cable Length:25 ft
Connection Type:Miller Direct Plug
Wire Diameter:1/16" (1.6mm)
Cooling Method:Air Cooled
Series:Spray Master (MS Series)
Packaging Description:pack of 1
Front End:Tweco
Amps:300amp

INCLUDED

  • 1 x Tweco Spray Master MS350 MIG Gun (25ft)
  • 1 x Miller-Style Rear Connector
  • 1 x Contact Tip (1/16" / 1.6mm installed)
  • 1 x Nozzle
  • 1 x Diffuser
  • 1 x Liner (installed)
  • 1 x Owner's Manual

APPLICATIONS

  • Heavy Equipment Manufacturing
  • Structural Steel Fabrication
  • Shipbuilding and Marine Repair
  • Trailer and Truck Body Manufacturing
  • General Industrial Fabrication
  • Railcar Construction

FAQ

This gun features a Miller-style back-end connection, making it compatible with most Miller wire feeders and power sources that accept a standard Miller MIG gun plug.

The Tweco Spray Master MS350 is rated at 350 Amps at 80% duty cycle when using mixed gases.

Yes, while this unit comes set up for 1/16" (1.6mm) wire, you can change the contact tip and liner to accommodate other wire sizes ranging from .035" to 5/64".

It uses standard Tweco consumables: 11 Series contact tips, 52 or 54 Series gas diffusers, and 22 or 24 Series nozzles.

Yes, the cable assembly features a rugged, abrasion-resistant outer jacket designed specifically to withstand the wear and tear of industrial shop floors.

While it can weld aluminum with the correct nylon liner and aluminum-specific tips, a 25-foot push gun is generally not recommended for soft aluminum wire due to feeding issues. A push-pull gun or spool gun is better for aluminum at this length.

The liner is replaced from the back end of the gun. Simply disconnect the gun from the machine, remove the back-end nut, pull out the old liner, and slide the new one in, trimming it to the correct length.