KP4121-1-50F-B25 - Lincoln Magnum PRO Robotic Nozzle .500 Bottleneck Stick-Out (25-Pack)

Magnum PRO Precision for Robotic Cells

Maximize the uptime and efficiency of your automated welding systems with the Lincoln Electric KP4121-1-50F-B25 Magnum PRO Bottleneck Gas Nozzle. Designed for the professional fabrication environment, this nozzle is an essential component for Magnum PRO Water-Cooled Robotic Torches. When your production line depends on consistent arc starts and reliable gas shielding, choosing genuine Lincoln Electric consumables ensures that your equipment operates at peak performance. This 25-pack bulk option offers excellent value for shops running high-volume shifts.

Water-Cooled Durability

Robotic welding pushes consumables to their limits. The KP4121-1-50F-B25 is engineered to handle the thermal stress of water-cooled applications. By effectively managing heat, this nozzle resists the rapid degradation that often plagues air-cooled counterparts in automation. The result is a longer-lasting nozzle that maintains its structural integrity, reducing the risk of bridging and ensuring smooth gas flow even after hours of continuous arcing.

Bottleneck Design & Stick-Out Spec

Geometry matters when programming robot paths. The bottleneck shape of this nozzle reduces the front-end footprint, allowing for better torch angles in tight fixtures and complex weldments. With a 0.500-inch (12.7 mm) orifice, it provides focused shielding gas coverage. The "Stick Out" classification indicates the nozzle's relationship to the contact tip, a critical parameter for controlling electrical stick-out (ESO) and arc behavior. Whether you are welding mild steel or stainless, having the correct nozzle configuration is key to reducing spatter and achieving X-ray quality welds.

Features at a Glance

• Fitment: Direct fit for Magnum PRO Water-Cooled Robotic guns.
• Shape: Tapered bottleneck for improved accessibility.
• Connection: Robust thread-on style for thermal conductivity.
• Quantity: Economical pack of 25 nozzles.