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10401068 - Tweco Spray Master MS450 MIG Gun, 450A, 25ft, Miller Connection, 1/16" Wire

Packaging: pack of 1
$1,994.36/EA $1,446.47/pack of 1 only $1,446.47/EASave 27%

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OVERVIEW

Tweco Spray Master: The Industrial Standard for MIG Welding

When it comes to high-amperage air-cooled MIG welding, the Tweco Spray Master series stands alone as the preferred choice for professional fabricators. This MS450 model is rated for 450 amps at an 80% duty cycle, making it capable of handling spray transfer modes and flux-cored applications with ease. Designed for durability and ease of maintenance, it eliminates the complexity of water-cooled systems while providing the thermal capacity needed for thick plate welding.

25-Foot Freedom for Large Projects

Stop struggling with short cables. This model comes with a 25-foot (7.6 meter) cable assembly, offering exceptional reach for working on trailers, large vessels, or structural beams. The cable is engineered to maintain consistent wire feeding even at this extended length, thanks to Tweco's low-friction liners and high-quality conduit design. The backend is fitted with a Miller-style connector, ensuring instant compatibility with your existing Miller wire feeders and power sources.

Optimized for 1/16" Wire

Out of the box, this gun is set up to run 1/16-inch wire, a common size for heavy fabrication where high deposition rates are critical. The contact tips and liners are matched to this diameter to ensure smooth arc starts and stable feeding. However, the gun is fully adaptable; by simply changing the liner and contact tip, it can easily run other wire sizes ranging from .035" to 5/64", making it a versatile tool for any shop.

User-Friendly Maintenance

The Spray Master is designed with the welder in mind. The split-handle case allows for easy access to the trigger and cable connections for field repairs. The patented conductor tube can be rotated to suit the operator's preference, and the heavy-duty contact tips provide excellent electrical conductivity and wear resistance. If you need a MIG gun that works as hard as you do, the Tweco Spray Master MS450 is the reliable solution you've been looking for.

Additional Information
Brand:Tweco
Amperage:450
Length:25 ft
Wire Size:1/16"
Back End:Miller
Cooling:Air Cooled
Torch Type:MIG Gun
Process Type:MIG (GMAW), Flux Cored (FCAW)
Duty Cycle:80% @ 450A
Cable Length:25 ft
Connection Type:Miller
Wire Diameter:1/16" (1.6mm)
Series:Spray Master (MS Series)
Packaging Description:pack of 1

INCLUDED

  • 1x Tweco Spray Master MS450 MIG Gun (25ft Cable)
  • 1x Miller Style Rear Connector
  • 1x Contact Tip (1/16" installed)
  • 1x Nozzle
  • 1x Diffuser
  • 1x Liner (installed)
  • 1x Owner's Manual

APPLICATIONS

  • Heavy Equipment Manufacturing
  • Structural Steel Fabrication
  • Shipbuilding and Offshore
  • Railcar Construction
  • General Heavy Fabrication
  • Trailer Manufacturing

FAQ

The Tweco Spray Master MS450 is rated at 450 Amps at 80% duty cycle using mixed gases.

This specific model comes set up for 1/16" (1.6mm) welding wire.

Yes, it features a Miller-style backend connection, making it compatible with most Miller wire feeders.

This is an air-cooled MIG gun, designed to handle high amperage without the need for a water cooler.

The cable length is fixed at 25 feet for this SKU. Other lengths are available as different part numbers.

It uses standard Tweco 11-Series contact tips, 54-Series gas diffusers, and 24-Series nozzles.

Yes, you can run smaller wire (like .035 or .045) by changing the liner and contact tip to match the desired wire size.