KP4120-1-50S-B25 - Lincoln Magnum PRO Robotic Gas Nozzle, Water Cooled, .500 Bore, Stickout, 25-Pack

High-Performance Robotic Welding Consumables

The Lincoln Electric KP4120-1-50S-B25 Magnum PRO Gas Nozzle is a critical component designed for the demanding environment of automated welding. Engineered specifically for Magnum PRO Water-Cooled Robotic Torches, this nozzle ensures consistent gas shielding and thermal management during continuous operation. In robotic cells where downtime equates to significant lost revenue, using genuine Lincoln Electric consumables helps maintain arc stability and weld quality.

This specific model features a 0.500-inch (12.7 mm) bore diameter, a standard size suitable for a wide range of wire diameters and welding parameters. The "Stickout" designation indicates that the nozzle is shorter than the contact tip, allowing the tip to protrude. This configuration is often preferred in robotic applications to improve access to tight joints or corners and to allow for specific electrical stick-out (ESO) requirements without the nozzle interfering with the workpiece.

The nozzle utilizes a thread-on connection mechanism. Unlike slip-on nozzles which can loosen over time due to thermal cycling and the rapid acceleration/deceleration of robotic arms, the thread-on design remains securely fastened. This reliability prevents gas leakage and ensures the nozzle stays concentric with the contact tip, which is vital for consistent tool center point (TCP) maintenance.

Constructed to withstand high heat, the water-cooled compatibility of this nozzle aids in rapid heat dissipation, significantly extending the lifespan of the consumable compared to air-cooled alternatives. This 25-pack bulk configuration is tailored for high-volume manufacturing facilities, ensuring that maintenance teams have ample stock to keep production lines running smoothly without frequent reordering.