ATT315-35 - 300A MIG Welding Gun, 15ft, Tweco Connection with 4-Pin Plug

Reliable 300 Amp MIG Welding Gun for Industrial Applications

The ATT315-35 is a robust 300 Amp MIG welding gun designed to meet the demands of medium to heavy-duty industrial fabrication. Engineered for durability and performance, this air-cooled torch provides a stable arc and consistent wire feeding, essential for producing high-quality welds. With a 15-foot cable assembly, it offers significant reach, allowing welders to move freely around large assemblies or fixtures without constantly repositioning the power source or wire feeder.

Universal Compatibility and Ease of Maintenance

One of the standout features of this MIG gun is its use of the industry-standard Tweco-style backend connection. This ensures it can be easily connected to a wide variety of wire feeders and welding machines that utilize the Tweco adapter system. Furthermore, the gun is equipped with a specific 4-pin trigger control plug, making it a direct replacement for compatible power sources requiring this configuration. Maintenance is streamlined thanks to the gun's compatibility with standard Tweco-style front-end consumables. Welders can easily source and replace contact tips (14 series), gas diffusers, and nozzles (24 series) from almost any welding supply store, minimizing downtime and keeping operating costs low.

Ergonomic Design for Operator Comfort

Welding for extended periods can be physically demanding, which is why this 300A gun features an ergonomically designed handle. The grip is contoured to fit comfortably in the hand, reducing wrist strain and fatigue during long welding sessions. The trigger mechanism is designed for positive engagement and long life, ensuring reliable arc initiation every time. Additionally, the cable assembly is protected by a durable, abrasion-resistant jacket that withstands the rigors of the shop floor, including exposure to sparks, spatter, and rough surfaces. Heavy-duty strain reliefs at both the handle and the machine end protect the internal copper cabling and liner from kinking or breaking, ensuring a long service life.

Performance You Can Trust

Rated for 300 Amps at a 60% duty cycle (with CO2 gas), this torch is capable of handling a wide range of wire diameters, typically from 0.035" to 0.045" (0.9mm to 1.2mm), making it versatile for welding mild steel, stainless steel, and flux-cored applications. Whether you are working in structural steel, equipment repair, or general manufacturing, the ATT315-35 delivers the power and reliability needed to get the job done efficiently.