K3358-4 - Lincoln Magnum PRO AL G450W Water-Cooled Push-Pull Gun, 50ft, Rear Trigger

Industrial-Grade Aluminum Welding Solution

The Lincoln Electric Magnum PRO AL G450W (K3358-4) represents the pinnacle of aluminum wire feeding technology for heavy-industrial applications. Designed to address the specific challenges of feeding soft aluminum wire over long distances, this push-pull gun system integrates a powerful motor in the handle to assist the wire feeder, ensuring consistent arc performance and eliminating common feeding issues such as birdnesting. This specific model features a water-cooled design, enabling it to operate at a 100% duty cycle at 450 Amps, making it suitable for continuous, high-deposition manufacturing environments where downtime is not an option.

The G450W is engineered with a 50-foot (15.2-meter) cable assembly, providing exceptional reach for large-scale fabrication projects such as trailer manufacturing, shipbuilding, and railcar assembly. The 7-pin connector ensures seamless integration with compatible Lincoln Electric wire feeders, providing synchronized control between the feeder and the gun motor. A key differentiator for this SKU is the rear trigger configuration, which offers an alternative ergonomic grip that some operators prefer for specific positional welding tasks or to reduce hand fatigue during long shifts.

Magnum PRO Consumable System

Efficiency and cost-reduction are at the core of the Magnum PRO series. This gun utilizes Lincoln's proprietary Magnum PRO consumables, including Copper Plus contact tips. These tips feature a larger diameter and mass compared to standard tips, improving heat dissipation and extending consumable life. The anti-seize thread design on the contact tips and diffusers prevents fusing, ensuring that maintenance is quick and tool-less. By reducing the frequency of consumable changeovers, the G450W significantly lowers operational costs and increases arc-on time.

Maintenance and Durability

The robust construction of the Magnum PRO AL G450W is built to withstand harsh industrial environments. The gun features a quick-change liner system that allows operators to replace liners in seconds without disassembling the gun handle, streamlining routine maintenance. The drive rolls are easily accessible, and the tension can be adjusted to grip the soft aluminum wire firmly without deforming it, preserving the wire's cross-sectional integrity for a stable arc. For procurement managers seeking a reliable, high-performance solution for aluminum MIG welding, the K3358-4 delivers proven Lincoln Electric quality and engineering excellence.