KP4120-1-75S - Lincoln Magnum PRO Robotic Nozzle 3/4-inch Stickout Water-Cooled

Precision Robotic Consumables for High-Performance Welding

The Lincoln Electric KP4120-1-75S Magnum PRO Gas Nozzle is a specialized component engineered to meet the exacting standards of modern robotic welding cells. Designed exclusively for use with Magnum PRO Water-Cooled Robotic Torches, this nozzle represents the intersection of durability and precision. In automated environments where downtime equates to significant revenue loss, the reliability of front-end consumables is paramount. This nozzle features a robust thread-on design that ensures a mechanically secure connection to the diffuser, facilitating optimal thermal conductivity. This efficient heat transfer is critical in water-cooled applications, preventing the nozzle from overheating during long weld cycles and reducing the adherence of spatter.

The specific geometry of the KP4120-1-75S is tailored for demanding applications, particularly those involving aluminum. With a generous 0.75-inch (19.0 mm) bore diameter, it provides a wide, stable column of shielding gas. This is essential for materials like aluminum that are highly reactive to atmospheric contamination. The "Stickout" designation indicates that the contact tip protrudes slightly beyond the nozzle face (or the nozzle is cut back to allow this relationship). This configuration is often chosen to improve visibility of the arc for camera systems or to allow the torch to access tighter joint angles that a flush or recessed nozzle could not reach. By maintaining a consistent stickout length, robotic programs can operate with greater stability and repeatability.

Lincoln Electric's Magnum PRO line is synonymous with longevity. These expendables are manufactured to withstand high-amperage arcs and the reflective heat generated during heavy fabrication. The integration of this nozzle into your robotic system ensures that your welding parameters remain consistent, minimizing the need for mid-shift changeovers and adjustments. Whether you are welding heavy structural components or precision aluminum parts, the KP4120-1-75S delivers the gas coverage and thermal management required for X-ray quality welds.