301572 - Miller XR-Aluma-Pro Water-Cooled Push-Pull Gun 25ft 400A

Professional Aluminum Welding with Miller XR-Aluma-Pro W

The Miller XR-Aluma-Pro W (Water-Cooled) Push-Pull MIG Gun, SKU 301572, represents the pinnacle of reliability for industrial aluminum fabrication. Designed specifically to address the challenges of feeding soft aluminum wire, this 25-foot gun utilizes a sophisticated push-pull mechanism that ensures consistent wire delivery without buckling or bird-nesting. With a robust 400-amp output at 100% duty cycle (using CO2), it is engineered for heavy-duty manufacturing environments such as shipbuilding, truck and trailer fabrication, and railcar construction.

One of the standout features of the XR-Aluma-Pro series is the attention to wire integrity. The gun features tension settings specifically calibrated for 4000 or 5000 series aluminum wires. This precision ensures that the drive rolls grip the wire firmly enough to feed at speeds up to 900 inches per minute, yet gently enough to prevent deformation of the soft metal. The result is a stable arc and superior weld quality, critical for code-level aluminum work.

Operator comfort and maintenance have also been prioritized. The gun body is balanced to reduce fatigue, and the 360-degree rotatable head tube allows welders to access tight joints without contorting their wrists. The full-length leather jacket protects the cable assembly from heat and abrasion, while the internal liner is easily replaceable, reducing downtime. For precise control, a 3-3/4 turn potentiometer is located on the handle, giving the welder fine-tuned command over wire feed speed right at the arc.

Key Benefits for Fabrication

• Consistent Feeding: Push-pull technology eliminates common aluminum feeding issues.
• High Duty Cycle: Water-cooling enables continuous welding at high amperages.
• Versatile Access: Rotatable head tubes fit various joint configurations.
• Durable Construction: Leather cable cover and strain reliefs withstand industrial abuse.