11401244 - Tweco 14H-45 Heavy Duty Contact Tip for .045 Wire

Technical Overview of Tweco 14H-45 Contact Tips

The Tweco 14H-45 is a heavy-duty contact tip designed specifically for use with .045-inch (1.2mm) welding wire. Part of the renowned Tweco 14 Series, this consumable is engineered to meet the rigorous demands of industrial MIG welding. The 'H' designation indicates a heavy-duty profile, characterized by a larger outer diameter or thicker wall compared to standard duty tips. This additional mass improves thermal conductivity and heat dissipation, significantly extending the lifespan of the tip in high-heat applications.

Manufactured from premium copper alloy, the 14H-45 ensures consistent electrical transfer to the welding wire, which is critical for maintaining a stable arc and reducing micro-arcing inside the bore. The tip features a precision-machined bore with tight tolerances to ensure smooth wire feeding while maintaining adequate electrical contact. It is designed to thread securely into Tweco 54A and 52FN gas diffusers, making it a versatile choice for various Tweco MIG gun configurations. The threaded base ensures a tight mechanical and electrical connection, minimizing resistance and heat buildup at the joint.

Industrial fabricators rely on genuine Tweco consumables for their consistency and durability. Using OEM parts like the 14H-45 reduces downtime associated with frequent tip changes and burnbacks. This tip is suitable for use in general fabrication, structural steel, and heavy equipment manufacturing where .045" wire is the standard.