375980-080 - Tweco .035 Flux-Cored Drive Roll Kit for 4-Roll Feeders

Precision Wire Feeding for Flux-Cored Applications

The Tweco 375980-080 Drive Roll Kit is an essential component for professional welders utilizing .035-inch (0.9mm) flux-cored or dual-shield welding wires. In the world of semi-automatic welding, the consistency of your wire feed is directly correlated to the stability of your arc and the quality of your weld bead. This kit is specifically engineered for 4-roll wire feed systems, which are commonly found in heavy-duty industrial wire feeders and high-amperage power sources. Unlike 2-roll systems, 4-roll configurations provide superior traction by distributing the feed force over a larger surface area, allowing for smooth delivery of wire through long gun cables or complex torch angles.

Why Knurled Rolls Matter

When welding with tubular wires—such as gas-shielded flux-cored (FCAW-G) or self-shielded flux-cored (FCAW-S)—standard smooth V-groove rolls are often inadequate. Tubular wires are hollow and filled with flux, making them softer and more prone to crushing than solid wires. If a welder attempts to increase tension on smooth rolls to prevent slipping, they risk deforming the wire into an oval shape, which causes drag in the contact tip and poor electrical conductivity. This Tweco kit features knurled drive rolls with small teeth that bite gently into the wire's surface. This positive mechanical grip allows the feeder to push the wire effectively with significantly less tension arm pressure, preserving the wire's round shape and ensuring consistent current transfer.

Genuine Tweco Reliability

As a genuine Tweco / Thermal Arc replacement part, this kit is manufactured to precise tolerances to ensure perfect alignment within your wire feeder. Misaligned rolls can lead to shavings, bird-nesting, and premature liner wear. By using the correct OEM parts, you ensure that the wire path remains straight and unobstructed. This kit includes the necessary rolls to outfit a 4-roll system, making it a complete maintenance solution for fabricators looking to switch wire sizes or replace worn components. Whether you are working on structural steel, heavy equipment repair, or shipyard fabrication, reliable wire feeding is the foundation of productivity, and the 375980-080 kit delivers exactly that.