16401113 - Tweco 1640-1113 Flexible Gooseneck 80° for #3 & #4 Guns

Technical Overview of the Tweco 1640-1113 Flexible Conductor Tube

The Tweco 1640-1113 is a specialized conductor tube designed for use with Tweco #3 and #4 series MIG guns. As a critical component of the MIG welding torch assembly, the conductor tube, often referred to as a gooseneck, serves as the conduit for both the welding current and the shielding gas, directing them from the gun handle to the contact tip and nozzle. This specific model features a flexible body design, distinguishing it from standard rigid tubes. The flexibility allows for minor adjustments and positioning, which is essential when operating in complex fixtures or restricted spaces where a standard fixed-angle neck would be impractical.

Engineered with an 80-degree bend, this conductor tube provides a steep angle of attack, suitable for specific joint configurations that require the torch to be positioned almost perpendicular to the handle axis or for reaching over obstacles. The tube is constructed from high-conductivity copper alloys to ensure efficient power transfer with minimal resistance, thereby reducing heat buildup during prolonged welding operations. It is rated to handle the amperage capacities associated with Tweco #3 (300 Amps) and #4 (400 Amps) guns, making it a versatile component for medium to heavy-duty industrial fabrication.

Installation of the 1640-1113 is straightforward, utilizing the standard connection mechanisms found on Tweco gun handles. The outer jacket is designed to resist spatter adhesion and abrasion, prolonging the service life of the component in harsh welding environments. By maintaining the integrity of the gas flow and electrical path, this genuine Tweco part ensures consistent arc stability and weld quality.