10361716 - Tweco Spray Master MS315FLX-3545M MIG Gun 350A 15ft Flex Neck

Tweco Spray Master 350 MIG Gun – 15ft Flex Neck (Miller Style)

Upgrade your welding setup with the Tweco Spray Master 350 (MS315FLX), a premium air-cooled MIG gun designed for professional welders who demand reliability and versatility. This model comes equipped with a 15-foot cable and a Miller back-end connection, allowing for seamless integration with your existing Miller wire feeders. The standout feature of this gun is its Flexible Neck, which provides the articulation necessary to weld inside pipes, around baffles, or in tight chassis frames where a standard fixed-neck gun simply cannot fit.

Rated for 350 Amps at 60% duty cycle, the Spray Master 350 is a true workhorse capable of handling high-amperage spray transfer and short-circuit MIG welding. It comes set up for standard wire diameters (typically 0.035" to 0.045") and features Tweco’s simplified consumable platform. The gun utilizes 11 Series contact tips, which offer excellent electrical conductivity and wear resistance. The gas diffuser and nozzle assembly are designed to ensure smooth laminar gas flow, protecting your weld pool from contamination even in drafty shop conditions.

The construction of the Spray Master series focuses on operator comfort and equipment longevity. The handle is impact-resistant and ergonomically shaped to reduce wrist strain. The cable housing is durable yet flexible, preventing kinking and ensuring smooth wire feeding. Changing liners is straightforward, and the gun's modular design allows for easy repairs if components are damaged. For welders looking to improve their reach and capability without sacrificing power, the Tweco Spray Master 350 Flex Neck is the ultimate solution.

Technical Highlights:

• Amperage: 350 Amps (CO2), 300 Amps (Mixed Gas).
• Neck Type: Multi-position Flexible Gooseneck.
• Connection: Miller Power Pin.
• Consumables: Tweco 11 Series Tips, 52/54 Series Diffusers.
• Application: Heavy Fabrication, MRO, Structural Steel.