KP2742-2-62R - Lincoln Electric Magnum PRO 350A Slip-On Nozzle, 5/8" ID, 1/8" Recess

Precision Engineered for Magnum PRO Systems

The Lincoln Electric KP2742-2-62R is a premium gas nozzle designed specifically for the Magnum® PRO 350A series of semi-automatic MIG welding guns. Engineered to meet the rigorous demands of industrial fabrication, this nozzle is rated for 350 amps, making it suitable for a wide range of medium to heavy-duty welding applications. The component features a 5/8-inch (15.9 mm) inner diameter (ID), which provides a balanced shielding gas envelope ideal for standard welding parameters and wire diameters ranging from .035 to 5/64 inches.

One of the critical technical specifications of this nozzle is its 1/8-inch (3.2 mm) recessed tip relationship. This geometry places the contact tip slightly back inside the nozzle, offering protection against short-circuiting to the workpiece and reducing the accumulation of spatter on the tip itself. This recess is particularly beneficial in applications requiring higher currents or spray transfer modes where electrical stick-out is a key variable. The nozzle utilizes a robust slip-on connection mechanism, which eliminates the issues associated with threaded nozzles, such as cross-threading or seizing due to thermal expansion and spatter buildup. This ensures that maintenance and replacement are swift and tool-free.

Constructed with durability in mind, the KP2742-2-62R is nickel-plated. This surface treatment is essential for professional welding environments as it resists the adhesion of molten spatter, keeping the nozzle clear and maintaining consistent gas flow. By reflecting radiant heat and preventing debris buildup, this nozzle helps keep the front end of the welding gun cooler, thereby prolonging the life of the associated consumables, including the contact tip and gas diffuser. It is designed to mate perfectly with the KP2746-2 gas diffuser, ensuring a leak-free gas path and optimal laminar flow for high-quality weld deposits.