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10361615 - Tweco Spray Master MS350 MIG Gun, 350A, 15ft, 1/16 Wire, Tweco Connection

Packaging: pack of 1
$1,353.15/EA $981.40/pack of 1 only $981.40/EASave 27%

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OVERVIEW

Technical Specifications: Tweco MS350 Spray Master

The Tweco 1036-1615 is a complete MIG gun assembly from the MS (Master Series) line, rated for 350 Amps at 80% duty cycle using CO2 gas. This model is configured with a 15-foot (4.5m) cable and a direct Tweco-style rear connection. It is factory-setup with a liner and contact tip for 1/16" (1.6mm) welding wire, targeting heavy industrial fabrication sectors where larger diameter wires are standard.

Thermal Management & Consumables

The Spray Master design prioritizes thermal efficiency. The conductor tube is insulated with a high-temperature composite and features a unique internal geometry that maximizes surface area for air cooling. This allows the gun to maintain lower operating temperatures during high-amperage spray transfer welding, significantly extending the life of the front-end consumables. It utilizes standard Tweco consumables, including:

  • Contact Tips: 11-Series (heavy duty)
  • Nozzles: 24-Series (slip-on or thread-on options available)
  • Diffusers: 52 or 54 Series gas diffusers

Construction & Ergonomics

The cable assembly features a durable outer jacket resistant to oil, ozone, and abrasion. Inside, high-quality copper stranding ensures efficient current transfer with minimal voltage drop over the 15-foot length. The handle is impact-resistant and features a long-life trigger switch tested for millions of cycles. A heavy-duty steel spring strain relief at both the handle and the feeder end prevents kinking and protects the internal gas hose and power cable from stress failures.

Additional Information
Brand:Tweco
Amperage:350
Length:15 ft
Back End:Tweco
Wire Size:1/16"
Item:Gooseneck
Torch Type:Air Cooled
Duty Cycle:80% @ 350A
Process Type:MIG (GMAW), Flux Cored (FCAW)
Cooling Method:Air Cooled
Handle Style:Ergonomic Curved
Cable Length:15 ft
Packaging Description:pack of 1

INCLUDED

  • 1 x Spray Master MS350 MIG Gun Assembly (15 ft)
  • 1 x Contact Tip (1/16" / 1.6mm installed)
  • 1 x Gas Diffuser
  • 1 x Nozzle
  • 1 x Liner (installed)
  • 1 x Tweco Backend Connection

APPLICATIONS

  • Structural Steel Fabrication
  • Heavy Equipment Manufacturing
  • Shipbuilding and Offshore
  • Aluminum Fabrication (Spray Transfer)
  • General Industrial Fabrication
  • Railcar Construction

FAQ

The Tweco MS350 Spray Master is rated at 350 Amps at an 80% duty cycle when using CO2 shielding gas.

This specific model (1036-1615) comes factory configured for 1/16" (1.6mm) welding wire.

It features a standard Tweco-style rear connection (often called a #4 connection), compatible with many Lincoln, Miller, and ESAB feeders equipped with Tweco adapters.

Yes, you can change the wire size by simply swapping the liner and contact tip to match your desired diameter (e.g., 0.035" or 0.045").

It typically uses Tweco 11-Series contact tips, 24-Series nozzles, and 52/54-Series gas diffusers.

The Tweco Spray Master MS350 is an air-cooled MIG gun.

This model comes with a 15-foot (approx. 4.6 meters) cable assembly.

It is designed specifically to handle the high heat and long arc-on times associated with spray transfer welding modes without overheating.