K3355-4 - Lincoln Magnum PRO AL G225A Aluminum MIG Gun 50ft 12-Pin

Advanced Aluminum Wire Feeding Solution

The Lincoln Electric Magnum PRO AL G225A Welding Gun (K3355-4) represents a significant advancement in push-pull wire feeding technology, specifically engineered to address the challenges of aluminum welding. Aluminum wire is notoriously soft and prone to buckling or "birdnesting" in standard MIG systems. The G225A utilizes a superior push-pull mechanism that drastically reduces friction within the wire feed path. By pulling the wire at the gun while the feeder pushes from the source, this system ensures smooth, consistent delivery of aluminum wire ranging from 0.035 to 1/16 inch (0.9 - 1.6 mm) in diameter, resulting in a stable arc and high-quality welds.

Engineered for Maintenance and Versatility

Industrial environments demand equipment that is easy to maintain to minimize downtime. The Magnum PRO AL features a Quick-Change Liner system, allowing operators to replace the liner simply by removing a set screw, without disassembling the entire gun. Furthermore, the patented EZ-Lock system provides exceptional versatility, enabling users to change or rotate the gun barrel to suit different welding angles or joint configurations. This model comes standard with Magnum PRO 550A expendables, ensuring long life and compatibility with the broader Magnum PRO ecosystem.

Ergonomics and Control

Operator comfort is paramount in manual welding operations. The G225A is designed with a lightweight, ergonomic handle that balances weight distribution equally between the front and back. This balance reduces wrist strain during long welding sessions. The gun also features a recessed adjustment dial conveniently located on the bottom of the handle, allowing for precise wire feed speed adjustments at the point of weld while preventing accidental changes during operation. A flip-up drive roll cover located at the thumb rest provides immediate access to the wire drive mechanism for quick checks or adjustments.

Specifications and Performance

This air-cooled model is rated for 225 Amps at a 60% duty cycle, making it suitable for a wide range of fabrication tasks. The 50-foot (15.2 m) cable assembly offers extensive reach, ideal for working on large structures such as trailers, boats, or tanks. The gun connects via a standard Lincoln 12-pin connector and features a rear trigger configuration for intuitive control.