KP3160-1-50S - Lincoln Magnum PRO 350A MIG Nozzle, 1/8" Stickout, 1/2" Bore, Thread-On

High-Performance Consumables for Industrial Welding

The Lincoln Electric KP3160-1-50S is a premium gas nozzle engineered specifically for the Magnum PRO 350A series of semi-automatic welding guns. Designed to meet the rigorous demands of industrial fabrication, this nozzle combines durability with precision engineering. It features a 350-amp rating, making it suitable for medium to heavy-duty welding cycles where heat management and consistent performance are critical. The nozzle utilizes a thread-on connection mechanism, which is superior to slip-on designs for maintaining tight concentricity between the contact tip and the nozzle bore. This alignment is essential for ensuring uniform shielding gas coverage and reducing the risk of porosity in the weld pool.

One of the standout features of this nozzle is its bottleneck shape with a 1/2-inch (12.7 mm) inner diameter. The bottleneck design tapers towards the outlet, providing the welder with better visibility of the arc and the weld puddle, which is particularly beneficial when welding in tight corners or complex joints. Additionally, the 1/8-inch (3.2 mm) stickout configuration recesses the contact tip slightly less than flush nozzles, offering a balance between gas coverage and electrical stickout control. This specific geometry is often preferred for short-circuit MIG welding or when a slightly longer wire extension is required for joint access.

Durability is a core component of the Magnum PRO line. The KP3160-1-50S is nickel-plated, a surface treatment that significantly reduces the adhesion of weld spatter. This feature not only prolongs the service life of the nozzle but also reduces downtime spent cleaning consumables. Furthermore, the nozzle is machined with coarse threads. Unlike fine threads that can easily cross-thread or seize due to thermal expansion and contraction, these coarse threads ensure the nozzle remains easy to remove and replace, even after enduring the high heat of repeated 350A welding operations. This attention to detail makes the KP3160-1-50S a reliable choice for professional welders seeking to maintain high productivity levels.