KP2744-364AT-B100 - Lincoln Magnum PRO 3/64 Aluminum Tapered Contact Tip (100-Pack)

Industrial Grade Contact Tips for Aluminum Applications

The Lincoln Electric KP2744-364AT-B100 is a bulk package of 100 Magnum® PRO Copper Plus® Contact Tips, specifically engineered for use with 3/64 inch (1.2 mm) aluminum welding wire. These consumables are a critical component for industrial fabrication environments utilizing Magnum® PRO MIG guns. The "AT" in the part number designates the tip's specific geometry and application: Aluminum Tapered. This design choice addresses the unique physical properties of aluminum wire, which is softer and more prone to feeding issues than steel, while the tapered profile allows for better joint access.

Technically, these tips leverage Lincoln's proprietary Copper Plus® technology. Unlike standard contact tips, Copper Plus® tips feature a larger diameter and greater mass. This increased thermal mass significantly improves heat dissipation, a vital factor when welding at currents up to 350A. Efficient heat management helps maintain the structural integrity of the tip, prevents the wire from fusing to the bore (burnback), and ensures consistent electrical conductivity. The 3/64 inch bore is precision-machined to tolerances that accommodate the thermal expansion of aluminum wire without causing drag or micro-arcing.

This product is supplied as a bulk pack of 100 units (B100), designed for high-volume manufacturing operations where downtime for inventory replenishment must be minimized. The tips are compatible with the standard Magnum® PRO expendable ecosystem, ensuring a secure fit and optimal gas flow characteristics. By utilizing these specialized tips, operators can maintain tighter process control variables essential for code-quality aluminum welds.