K3358-2 - Lincoln Magnum PRO AL G450W Water-Cooled Push-Pull Gun, 25ft, 7-Pin

Optimized Aluminum Welding Performance

The Lincoln Electric K3358-2 Magnum PRO AL G450W is a premium water-cooled push-pull MIG gun engineered specifically to address the challenges of welding aluminum. Aluminum wire is notoriously soft and prone to buckling or "bird-nesting" when pushed through long cable lengths. The Magnum PRO AL series solves this by integrating a motor within the gun handle that pulls the wire while the feeder pushes it, ensuring a smooth, consistent feed even at distances of 25 feet. This synchronization significantly reduces friction in the wire feed path, minimizing downtime caused by feed failures and ensuring a stable arc for critical welds.

Advanced Ergonomics and Maintenance

Designed with the operator in mind, the G450W features a lightweight, ergonomic handle that balances weight equally between the front and back. This reduction in operator fatigue is crucial for long welding shifts. The gun also features a recessed adjustment dial located on the bottom of the handle, allowing for wire feed speed adjustments without the risk of accidental changes during operation. Maintenance is streamlined with the patented EZ-Lock system, which allows users to change or rotate the barrel 360 degrees to access difficult joints. Additionally, the Quick-Change Liner system enables liner replacement by simply removing a single set screw, eliminating the need to disassemble the entire gun.

Heavy-Duty Consumables and Durability

The K3358-2 utilizes Lincoln's Magnum PRO consumables, known for their longevity and performance. The gun comes standard with 550A expendables, ensuring it can withstand the heat and demands of high-amperage aluminum welding. The water-cooled design (indicated by the 'W' in G450W) effectively manages heat buildup, allowing for a 60% duty cycle at high outputs. A flip-up drive roll cover located at the thumb rest provides quick access to the wire drive mechanism, and the quick wire release lever makes loading and unloading wire simple. Whether using MIG or Pulsed MIG processes, this gun delivers the reliability required for industrial aluminum fabrication.