KP3583-1-62R-B25 - Lincoln KP3583-1-62R-B25 Magnum PRO 550A Nozzle Front End (25-Pack)

Industrial Grade Magnum PRO Consumables

The Lincoln Electric KP3583-1-62R-B25 is a bulk pack of 25 heavy-duty nozzle front ends designed for the Magnum PRO 550A series of MIG welding guns. These consumables are engineered to meet the rigorous demands of high-amperage industrial welding environments. By utilizing a two-piece nozzle system, Lincoln Electric enables facilities to reduce consumable waste and lower long-term operational costs. Instead of discarding an entire nozzle assembly when the tip becomes damaged or clogged with spatter, operators can simply unscrew and replace this front-end component, retaining the main nozzle body.

Each nozzle front end features a 5/8-inch (15.9 mm) inner diameter, which is a standard size suitable for a wide range of wire diameters and shielding gas flow rates. The 1/8-inch (3.2 mm) recess places the contact tip slightly back from the nozzle opening, providing essential protection against short circuits and reducing the accumulation of spatter on the tip itself. This recess configuration is ideal for general fabrication where visibility and gas coverage must be balanced with component longevity.

Rated for 550 amps, these heavy-duty front ends are constructed from high-quality copper alloy to ensure superior thermal conductivity and durability. They are designed to withstand the high heat input associated with spray transfer and pulsed MIG welding processes. The threaded connection ensures a tight gas seal and mechanical stability, preventing the nozzle from loosening during operation. This 25-pack configuration is optimized for high-volume shops looking to maintain inventory of critical wear parts.