KP4120-1-38S - Lincoln Electric Magnum PRO Water-Cooled Gas Nozzle, Stick Out, 3/8 Inch Bore

Lincoln Electric Magnum PRO Consumables: Precision and Durability

Upgrade your robotic welding setup with the Lincoln Electric KP4120-1-38S Magnum PRO Gas Nozzle, a premium consumable designed for high-performance water-cooled robotic torches. Lincoln Electric has long been a leader in welding technology, and the Magnum PRO series exemplifies their commitment to quality and innovation. This gas nozzle is engineered to deliver consistent results in the most demanding industrial environments, where heat management and precision are paramount.

Technical Specifications and Design
The KP4120-1-38S features a 0.375-inch (9.5 mm) orifice, making it an excellent choice for applications requiring tight access or the use of smaller diameter welding wires. The "Stick Out" tip relationship is a defining characteristic of this model. By allowing the contact tip to extend past the nozzle edge, operators and programmers gain better visibility of the arc and improved access to complex joint geometries. This configuration is particularly useful for short-circuit MIG welding or when welding in tight V-grooves where a flush or recessed nozzle might cause gas coverage issues or physical interference.

Water-Cooled Efficiency
Heat is the primary cause of consumable failure in continuous welding operations. The KP4120-1-38S is designed for water-cooled systems, allowing it to operate at higher amperages and duty cycles than standard air-cooled nozzles. The efficient thermal transfer provided by the water-cooling circuit helps keep the nozzle surface temperature lower, which in turn reduces the adherence of weld spatter. Less spatter buildup means less frequent cleaning cycles and fewer interruptions to the production line, ultimately boosting overall efficiency.

Secure Thread-On Fitment
The thread-on design of the Magnum PRO series offers distinct advantages over traditional slip-on nozzles. It provides a solid mechanical connection that maximizes heat transfer from the nozzle to the torch body's cooling channels. Additionally, the threaded fit guarantees that the nozzle is perfectly aligned with the contact tip every time it is replaced. This concentricity is critical for maintaining uniform gas shielding around the weld pool, preventing porosity and ensuring high-quality weld deposits. Whether you are welding mild steel, stainless, or aluminum, the KP4120-1-38S provides the reliability and performance professional fabricators expect from Lincoln Electric.