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10361731 - Tweco Spray Master 350 MIG Gun, 15ft, Miller Style

Packaging: 1 per ea
$1,454.81/ea $922.32/1 per ea only $922.32/eaSave 37%

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SKU: TWE10361731 Categories: ,

OVERVIEW

Legendary Performance with the ESAB Tweco Spray Master 350

The ESAB Tweco Spray Master 350 (MS315M) is a heavy-duty, air-cooled MIG gun designed to meet the rigorous demands of industrial welding. Known for decades as the industry standard for reliability, the Spray Master series combines robust construction with operator comfort. This specific model features a direct connection for Miller wire feeders, making it an effortless upgrade or replacement for your existing equipment. With a 15-foot cable, it offers the reach necessary for large fabrication projects while maintaining consistent wire feeding performance.

At the heart of the Spray Master 350 is its ability to handle high-amperage applications with ease. Rated at 350 amps at an 80% duty cycle with CO2, this gun is built to stay cool under pressure. The ergonomic handle reduces operator fatigue during long shifts, and the fully insulated design ensures safety in tough shop environments. Whether you are welding mild steel, stainless, or aluminum (with the correct liner), the Spray Master delivers a stable arc and precise control.

Maintenance is a breeze with the Spray Master design. It utilizes standard Tweco consumables—including the widely available 11 Series contact tips and 52 Series gas diffusers—keeping your operating costs low and parts sourcing simple. The conductor tube can be rotated 360 degrees, allowing welders to access tight corners and awkward joints without straining their wrists. For a MIG gun that balances performance, durability, and cost-effectiveness, the Tweco Spray Master 350 is the professional's choice.

Additional Information
packaging-description:1 per ea
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Process Type:MIG (GMAW), Flux Cored (FCAW)
Duty Cycle:80% @ 350A (CO2), 60% @ 350A (Mixed Gas)
Wire Diameter Capacity:0.035", 0.045"
Cooling Method:Air Cooled
Series:Spray Master
Model:MS315M
Amps:350
Brand:ESAB, Tweco
Cable Length:15 ft
Connection Type:Miller

INCLUDED

  • 1 x Spray Master 350A MIG Gun (15 ft)
  • 1 x Contact Tip (Installed)
  • 1 x Nozzle (Installed)
  • 1 x Diffuser (Installed)
  • 1 x Liner (Installed)
  • 1 x Miller-Style Rear Connector

APPLICATIONS

  • Heavy Equipment Manufacturing
  • Structural Steel Fabrication
  • General Industrial Fabrication
  • Automotive Repair and Restoration
  • Shipbuilding and Offshore
  • Maintenance and Repair Operations (MRO)

FAQ

The Spray Master 350 is rated at 350 Amps at 80% duty cycle with CO2 gas, and 60% duty cycle with mixed gases.

Yes, this model (MS315M) comes with a Miller-style rear connection plug, making it compatible with most Miller wire feeders.

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

This specific model comes with a 15-foot cable assembly.

Yes, the conductor tube (neck) can be rotated 360 degrees to help you reach difficult angles.

It is typically set up for 0.035" to 0.045" welding wire.

The Spray Master 350 is an air-cooled MIG gun.

Yes, the conduit liner is replaceable and should be changed periodically to ensure smooth wire feeding.