K3422-4 - Lincoln Magnum PRO AL G450W Water-Cooled Push-Pull Gun 50ft

Industrial Grade Aluminum Welding Solution

The Lincoln Electric Magnum PRO AL G450W (K3422-4) is a high-performance push-pull MIG gun engineered specifically for the rigorous demands of industrial aluminum fabrication. Designed to address the common challenges associated with feeding soft aluminum wire, this system utilizes a synchronized push-pull mechanism that ensures consistent wire delivery over its extended 50-foot length. This capability is critical for large-scale manufacturing environments, such as trailer fabrication, shipbuilding, and automotive assembly, where operators require significant mobility without sacrificing arc stability.

At the core of this unit is the G450W water-cooled rating, providing a 100% duty cycle at 450 Amps using mixed shielding gases. This thermal management allows for continuous welding operations without the risk of gun overheating, maximizing throughput in high-volume production lines. The gun integrates seamlessly with Lincoln Electric's advanced power sources via a 12-pin connector, enabling precise communication and control.

Maintenance and operational costs are optimized through the use of Magnum PRO consumables. The proprietary Copper Plus contact tips feature a larger mass and diameter, improving heat dissipation and electrical conductivity. This results in significantly longer tip life compared to standard consumables, reducing downtime for changeovers. The Quick-Change liner system further enhances serviceability, allowing maintenance teams to replace liners in seconds without disassembling the entire gun.

Key Technical Specifications:

• Rated Output: 450A at 100% Duty Cycle
• Cooling: Water-Cooled
• Cable Length: 50 ft (15.2 m)
• Wire Diameter Range: 0.035 - 1/16 in (0.9 - 1.6 mm)
• Connector: 12-Pin Amphenol