KP24A-62 - Lincoln Electric KP24A-62 Magnum 400 Adjustable Gas Nozzle 5/8 Inch ID

Lincoln Electric KP24A-62 Adjustable Slip-On Gas Nozzle

The Lincoln Electric KP24A-62 is a premium replacement gas nozzle designed specifically for the Magnum 400 series of semiautomatic MIG guns. Engineered to meet the rigorous demands of industrial welding, this nozzle features a 0.62-inch (5/8 inch) inner diameter, providing a balanced flow of shielding gas to protect the weld pool from atmospheric contamination. The nozzle is constructed from high-quality copper alloy, ensuring excellent heat dissipation and resistance to spatter buildup, which is critical during high-amperage operations.

One of the defining features of the KP24A-62 is its adjustable slip-on design. Unlike fixed threaded nozzles, this unit slides over the gun tube and is secured by a friction fit (often used in conjunction with a specific insulator or gas diffuser). This adjustability allows the welder to fine-tune the nozzle's position, effectively changing the contact tip stick-out (CTSO). Proper stick-out management is essential for controlling voltage, penetration, and arc stability, particularly when transitioning between short-circuit and spray transfer modes.

This nozzle is rated for use with 400-amp MIG guns, making it a staple for heavy fabrication shops, structural steelwork, and manufacturing environments where duty cycles are high. The 5/8-inch bore is a standard size that offers a versatile balance between gas coverage and access to tighter joints. Regular inspection and cleaning of the nozzle interior are recommended to maintain laminar gas flow and prevent porosity in the weld metal. The KP24A-62 is a direct OEM replacement part, guaranteeing compatibility and performance with your existing Lincoln Electric Magnum 400 equipment.

Whether you are welding mild steel, stainless steel, or aluminum, ensuring you have the correct nozzle geometry is the first step toward a quality weld. The Lincoln KP24A-62 provides the reliability and adjustability professional welders require to maintain productivity and weld quality.