1640-1408 - Tweco Velocity Conductor Tube Insulator (Pack of 5)

Technical Overview of Tweco 1640-1408

The Tweco 1640-1408 Insulator is a critical replacement component designed specifically for the Tweco Velocity series of MIG welding guns. This insulator fits directly onto the conductor tube (gooseneck), providing essential electrical isolation between the electrically live components of the gun and the outer nozzle or shielding cup. Manufactured to Tweco's strict OEM specifications, this part ensures that the high-performance characteristics of the Velocity consumable system are maintained.

The Velocity system is renowned for its superior conductivity and cooling capabilities. The 1640-1408 insulator plays a vital role in this ecosystem by preventing electrical leakage and short circuits that can occur if the conductor tube inadvertently contacts the workpiece or if the nozzle becomes bridged with spatter. Made from high-temperature resistant materials, this insulator is engineered to withstand the intense radiant heat and thermal cycling inherent in industrial welding environments without degrading or becoming brittle prematurely.

Supplied in a pack of 5, this SKU allows fabrication shops and maintenance departments to keep essential spares on hand, minimizing downtime. Proper maintenance of the conductor tube insulator is often overlooked but is crucial for preventing erratic arcs and protecting the more expensive brass and copper components of the MIG gun. It is compatible with all Tweco MIG guns utilizing the Velocity front-end consumable platform.