KP2745-332R - Lincoln Magnum PRO 550A Extended Life Contact Tip 3/32 Inch

Maximize Welding Uptime with Lincoln Copper Plus Technology

The Lincoln Electric KP2745-332R is a premium 3/32-inch contact tip designed for the rigorous demands of high-amperage MIG welding. Part of the renowned Magnum® PRO line, these "Extended Life" contact tips are engineered to handle up to 550 amps, making them an essential component for heavy industrial fabrication and manufacturing environments. The defining feature of this consumable is the proprietary Copper Plus® technology. By utilizing a larger physical diameter, Lincoln Electric has increased the total copper mass of the tip. This additional mass acts as a superior heat sink, effectively drawing thermal energy away from the bore and dispersing it outward. The result is a contact tip that runs cooler, maintains its structural integrity longer, and reduces the frequency of change-outs.

One of the most common frustrations in MIG welding is the seizing of contact tips within the gas diffuser, often caused by excessive heat and spatter accumulation. The KP2745-332R addresses this with Lincoln's innovative Anti-Seize™ thread design. These flattened threads reduce the surface area prone to fusion, ensuring that when it is finally time to replace the tip, it unscrews easily without damaging the diffuser or requiring excessive force. This small but critical design element significantly reduces downtime and maintenance frustration on the shop floor.

These tips are specifically calibrated for 3/32-inch (2.4 mm) wire, a size common in heavy plate welding and structural steel applications. The "Extended Life" designation is not just a label; field tests indicate that these tips can feed an average of 20 lbs. more wire over their lifespan compared to standard Magnum PRO tips. For businesses focused on efficiency and cost-per-weld, switching to the KP2745-332R offers a tangible return on investment through reduced consumable usage and increased arc-on time. Each package contains 10 contact tips, ensuring your welding stations remain stocked and ready for continuous operation.