KP1965-2 - Lincoln Magnum Insulated Guide Nozzle Extension 3.75-Inch for 0.120 Wire

Technical Overview of the Lincoln Electric KP1965-2

The Lincoln Electric KP1965-2 is a specialized Nozzle Insulated Guide designed to meet the rigorous demands of heavy-industrial self-shielded flux-cored arc welding (FCAW-S). This component is engineered specifically for the Magnum Classic series of semiautomatic guns, including the widely utilized K115 and K116 models. The primary function of this guide is to establish and maintain a precise electrical stickout (ESO) of 3.75 inches (95 mm). In self-shielded flux-cored welding, particularly with large diameter wires such as 0.120-inch (3.0 mm), controlling the ESO is critical for achieving the correct resistive heating of the wire before it enters the arc, which directly influences deposition rates and arc stability.

Constructed with high-grade insulating materials, the KP1965-2 serves a dual purpose. Firstly, it physically guides the heavy wire from the contact tip to the arc zone, ensuring accurate placement. Secondly, its insulation acts as a safety barrier, preventing the electrically live nozzle assembly from shorting out against the base metal or workpiece during tight-access welding or accidental contact. This feature is essential for maintaining equipment longevity and operator safety in complex structural fabrication environments.

The guide is designed to withstand the intense radiant heat and spatter associated with high-amperage flux-cored welding. It integrates seamlessly with the Magnum gun assembly, replacing standard nozzles when extended stickout is required by the specific welding procedure specification (WPS). By enforcing the 3.75-inch distance, the KP1965-2 eliminates operator variability regarding contact-tip-to-work distance (CTWD), ensuring that the mechanical properties of the weld deposit remain consistent across long production runs. This part is a genuine Lincoln Electric OEM component, ensuring perfect fitment and adherence to the manufacturer's original performance specifications for the Magnum product line.

Industrial MRO professionals and welding engineers specify the KP1965-2 when utilizing Lincoln's Innershield® wires that require extended preheat lengths. Its robust design minimizes downtime associated with consumable failures, making it a staple in heavy fabrication, shipbuilding, and structural steel erection sectors where Magnum guns are the standard tool of choice.