11401246 - Tweco 14H-116 Heavy Duty Contact Tip 1/16 Inch (Pack of 25)

Genuine Tweco 14H-116 Heavy Duty Contact Tip (1/16")

The Tweco 14H-116 is a premium Original Equipment Manufacturer (OEM) contact tip designed for industrial MIG welding applications requiring 1/16-inch (1.6mm) wire. Part of the renowned Tweco 14 Series, the "H" designation signifies a Heavy Duty construction. These tips feature a thicker outer wall compared to standard duty tips, providing greater mass for superior heat dissipation. This thermal efficiency is critical in high-amperage environments (typically 300A to 400A), where excess heat can soften copper, leading to keyholing, premature wear, and arc instability.

Manufactured from a high-grade copper alloy, the 1140-1246 contact tip ensures optimal electrical conductivity, which is essential for transferring welding current to the wire with minimal resistance. The bore is precision-drilled to tight tolerances, ensuring smooth wire feeding while maintaining constant electrical contact. This reduces the likelihood of micro-arcing inside the tip, a common cause of burnback and wire fusing.

This contact tip is engineered with standard 3/8"-24 UNF threads, making it directly compatible with Tweco 54A and 52FN gas diffusers. It is the standard replacement part for Tweco #3 and #4 MIG guns, as well as Lincoln Magnum 300 and 400 series guns that utilize Tweco-style consumables. By choosing genuine Tweco OEM parts, fabricators ensure that their equipment operates within factory specifications, minimizing downtime associated with generic consumable failures.

Key Technical Specifications:

• Part Number: 14H-116 (Stock: 1140-1246)
• Wire Diameter: 1/16" (1.6mm)
• Construction: Heavy Duty (Thick Wall)
• Thread Size: 3/8"-24 UNF
• Compatibility: Tweco #3, #4, Lincoln Magnum 300/400