39V80 - ESAB ST-21M Conduit Assembly for 3/32 Wire

Reliable Wire Feeding for Mechanized Systems

The ESAB 39V80 Conduit Assembly is a critical component designed specifically for the ST-21M Mechanized MIG Torch. In automated and mechanized welding environments, the consistency of wire delivery is paramount to maintaining weld quality and process efficiency. This conduit acts as the primary guide for the welding wire, protecting it from the drive rolls to the contact tip and ensuring that friction is minimized throughout the feed path.

Engineered to accommodate 3/32-inch (2.4 mm) welding wire, this conduit is built to handle the rigidity and weight of heavier gauge wires often used in high-deposition applications. The internal surface of the conduit is manufactured to strict tolerances, reducing drag and preventing the common issues of wire shaving or bird-nesting that can occur with inferior generic liners. By maintaining a smooth path, the 39V80 helps stabilize the arc and ensures uniform bead appearance.

As a genuine ESAB OEM part, the 39V80 guarantees perfect compatibility with the ST-21M system. It features the correct fittings and length (designated as 4 X H, typically indicating a 4-foot heavy-duty configuration) to integrate seamlessly into your existing setup. Regular inspection and replacement of the conduit are recommended as part of a preventative maintenance schedule to avoid unexpected downtime and costly repairs to the feeding mechanism.

Technical Specifications

• Part Number: 39V80


• Application: ST-21M Mechanized MIG Torch


• Wire Capacity: 3/32" (2.4 mm)


• Construction: Heavy-duty industrial grade