The Lincoln Electric KP2745-072R is a premium contact tip engineered specifically for the Magnum PRO series of MIG welding guns. Designed to meet the rigorous demands of heavy industrial fabrication and robotic welding cells, this consumable leverages Lincoln's proprietary "Copper Plus" technology. By increasing the overall diameter of the contact tip, Lincoln has effectively increased the copper mass available for thermal transfer. This larger mass acts as a superior heat sink, dissipating the intense heat generated during 550A welding procedures much more efficiently than standard diameter tips. The result is a cooler operating temperature that prolongs the structural integrity of the tip.
Material composition is critical in high-amperage applications. The KP2745-072R is manufactured from a Copper Chrome Zirconium alloy, a material chosen for its exceptional resistance to annealing. While standard copper can soften and deform under prolonged heat exposure, this alloy maintains its hardness and geometry, ensuring the wire orifice remains true. This resistance to wear is vital for maintaining a consistent Tool Center Point (TCP), making these tips highly recommended for automated and robotic setups where precision is non-negotiable.
Operational efficiency is further enhanced by the Anti-Seize™ thread design. In many welding environments, thermal cycling can cause contact tips to fuse to the gas diffuser, leading to difficult changeovers and potential equipment damage. The KP2745-072R features a unique thread profile that reduces surface contact area within the threads, preventing seizing and ensuring that replacements can be performed quickly and without special tools. Lincoln Electric's internal testing suggests that these Extended Life tips can feed an average of 20 lbs more wire over their lifespan compared to standard counterparts, offering a tangible reduction in consumable costs and downtime.
| Additional Information |
|---|
| Packaging Description:10 PER EA |
| ----- new values below ---- |
| Wire Diameter:.068 - .072 in, 1.7 - 1.8 mm |
| Material:Copper Chrome Zirconium |
| Technology:Copper Plus, Anti-Seize Threads |
| Compatible Gun Series:Magnum PRO |
| Consumable Type:Contact Tip |
| Brand:Lincoln |
| Packaging Description:pack of 10 |
| Amps:550 |
