KP2745-764-B100 - Lincoln Magnum PRO Copper Plus Contact Tip 550A 7/64 (100 Pack)

High-Performance Consumables for Heavy Fabrication

The Lincoln Electric KP2745-764 Copper Plus® Contact Tip is a premium consumable engineered for the rigorous demands of high-amperage industrial welding. Designed specifically for the Magnum® PRO series of MIG guns, this contact tip is rated for 550A applications and accommodates 7/64-inch (2.8 mm) welding wire. This specific SKU (KP2745-764-B100) is a bulk package containing 100 individual tips, making it an ideal procurement choice for large-scale manufacturing facilities, shipyards, and heavy equipment fabrication shops where uptime and inventory management are critical.

Copper Plus® Technology

Standard copper tips often degrade quickly under the intense heat of high-amperage arcs, leading to keyholing, burn-back, and unstable arcs. Lincoln Electric addresses this with their proprietary Copper Plus® alloy. This material offers significantly improved thermal conductivity and hardness compared to standard C12200 copper. By dissipating heat more efficiently, the tip remains cooler during operation, which reduces the likelihood of the wire fusing to the tip and extends the overall service life of the consumable. For industrial operators, this translates to fewer interruptions for maintenance and more arc-on time.

Magnum® PRO Design Integration

These contact tips are an integral part of the Magnum® PRO expendables system. They feature a unique thread design that is flattened to maximize the surface area of contact between the tip and the gas diffuser. This increased contact area ensures optimal electrical transfer, reducing resistance and further minimizing heat generation at the connection point. Additionally, the threads are engineered with anti-seize properties, preventing the tip from fusing to the diffuser even after prolonged welding sessions at 550 amps. The 7/64-inch bore is precision-machined to ensure smooth wire feeding, reducing drag and micro-arcing within the tip.

Application and Compatibility

The KP2745-764 is strictly designed for use with Magnum® PRO 550 amperage gun assemblies. It is suitable for use with solid, flux-cored, and metal-cored wires of the corresponding 7/64-inch diameter. The robust construction makes it particularly well-suited for automated and semi-automated welding processes where consistency and reliability are paramount. By investing in the 100-pack bulk option, facilities can ensure a steady supply of critical components, reducing administrative overhead and ensuring that welding stations remain operational.