KP2745-116AT-B100 - Lincoln Electric Magnum PRO Copper Plus Contact Tip 550A Tapered for Aluminum 1/16in (100-Pack)

High-Performance Consumables for Aluminum Fabrication

The Lincoln Electric KP2745-116AT-B100 is a bulk package of 100 premium contact tips designed for the rigorous demands of industrial aluminum MIG welding. Part of the Magnum® PRO line, these tips feature Lincoln's proprietary Copper Plus® technology. Unlike standard copper tips which can soften and deform under high thermal stress, Copper Plus® alloy retains its hardness and conductivity even at elevated temperatures. This resilience is critical when welding at amperages up to 550A, ensuring consistent arc transfer and reducing the frequency of tip changes.

Aluminum welding presents unique challenges, primarily due to the high thermal expansion rate of aluminum wire compared to steel. A standard contact tip often causes aluminum wire to bind or jam as it heats up within the tip bore. The KP2745-116AT is engineered with a specific internal geometry to accommodate this expansion, ensuring smooth wire feeding and preventing burn-back. The "Tapered" exterior design further enhances performance by allowing the welder better visibility of the weld puddle and improved access to tight joints, while also streamlining gas flow around the nozzle.

This 100-pack configuration (B100) is ideal for high-volume manufacturing environments where uptime is paramount. By utilizing consumables that last longer and are specifically tailored for the wire type, operators can maintain higher duty cycles and produce cleaner, more consistent welds. The tips also feature coarse threads that resist seizing, making replacement quick and easy even after long welding sessions.

Technical Specifications

These tips are rated for 550 amps and are sized for 1/16 inch (1.6 mm) wire. They are compatible with Magnum® PRO MIG guns, which are widely used in heavy fabrication, shipbuilding, and automotive industries. The integration of high-quality materials and application-specific design makes the KP2745-116AT an essential component for any serious aluminum welding operation.