The Lincoln Electric Magnum® PRO AL G225A (K3420-4) is a high-performance air-cooled push-pull MIG gun engineered specifically to address the challenges of feeding soft aluminum wire. Designed for industrial fabrication environments, this system integrates a powerful motor within the gun handle to pull the wire while the feeder pushes, effectively eliminating the friction and buckling issues common with standard push-only systems. The G225A model is rated for 225 Amps at 60% duty cycle, making it an optimal choice for general aluminum fabrication, trailer manufacturing, and automotive repair where mobility and reliability are paramount.
A key technical advantage of the K3420-4 is its utilization of the Magnum® PRO consumable platform. This system features Copper Plus™ contact tips, which provide a larger mass and superior heat dissipation compared to standard tips. This results in a cooler running tip, reduced fusion of the wire to the tip (burnback), and significantly longer consumable life. The anti-seize threads on the contact tips and diffusers prevent the components from fusing together, ensuring that maintenance and changeovers are quick and tool-free.
This specific configuration comes with a 50-foot (15.2 meter) cable assembly, offering exceptional reach for working on large weldments without moving the power source. The gun terminates in a standard Lincoln Electric 12-pin connector, ensuring seamless communication and control with compatible Lincoln wire feeders and power sources, such as the Power Wave® and Flextec® series equipped with push-pull modules. The internal liner system is designed to minimize drag, further enhancing the stability of the arc and the consistency of the wire feed speed.
The G225A is built to withstand harsh industrial environments. The cable is encased in a durable, abrasion-resistant jacket that protects the power cable, gas hose, and control leads. The gun handle features a tool-less drive roll cover, allowing operators to inspect or change drive rolls immediately without returning to the tool crib. This focus on serviceability reduces downtime and keeps production lines moving efficiently.
| Additional Information |
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| Packaging Description:1 Per Ea |
| Amps:225 |
| Cable Length:50 ft |
| Cooling Method:Air Cooled |
| Process Type:MIG (GMAW), Pulsed MIG (GMAW-P) |
| Wire Type:Aluminum |
| Gun Type:Push-Pull |
| Connection Type:12-Pin, Lincoln Electric |
| Duty Cycle:60% @ 225A |
| Wire Diameter Range:0.035" - 1/16" (0.9 - 1.6 mm) |
| ----- new values below ---- |
| Process Type:MIG (GMAW), Pulsed MIG (GMAW-P) |
| Wire Type:Aluminum |
| Gun Type:Push-Pull |
| Connection Type:12 Pin, Lincoln Electric |
| Duty Cycle:60% @ 225A |
| Wire Diameter Range:0.035" - 1/16" (0.9 - 1.6 mm) |
