KP4335-047C - Lincoln KP4335-047C .047 Cored Wire Drive Roll Kit

Precision Wire Feeding for Cored Applications

The Lincoln Electric KP4335-047C Drive Roll Kit is a critical component for industrial wire feeding systems, specifically engineered to accommodate .047-inch (1.19 mm) cored welding wires. In automated and semi-automated welding processes, the consistency of wire delivery is paramount to achieving stable arcs and high-quality weld deposits. This kit addresses the specific mechanical requirements of tubular wires, such as flux-cored (FCAW) and metal-cored (MCAW) consumables, which differ significantly from solid wires in terms of structural integrity and surface friction.

Unlike solid wires that can withstand significant compressive force, cored wires are tubular and susceptible to crushing if improper drive rolls are used. The KP4335-047C features a specialized groove geometry—often a knurled or specific V-configuration designed for cored applications—that bites into the wire surface sufficiently to generate traction without compromising the wire's shape. Deforming a cored wire can lead to poor electrical contact at the contact tip, irregular flux distribution, and feeding issues such as bird-nesting at the feeder inlet. This kit ensures that the wire retains its roundness while being pushed through the gun liner with consistent force.

Manufactured from high-grade, heat-treated steel, these drive rolls offer exceptional durability and resistance to wear. In high-volume production environments, wear on the drive roll groove can lead to slippage, resulting in arc instability and burn-back. The hardened surface of the KP4335-047C maintains its dimensional accuracy over long periods of operation, reducing maintenance intervals and the total cost of ownership. This kit is designed for seamless integration with compatible Lincoln Electric wire feeders, ensuring correct alignment with the wire guides and inlet mechanisms.

Installation of the KP4335-047C is straightforward, allowing operators and maintenance personnel to switch wire sizes or types quickly. Proper selection of drive rolls is a fundamental aspect of welding procedure specification compliance. By utilizing the correct roll for .047" cored wire, users ensure that their welding equipment operates at peak efficiency, delivering the precise wire feed speeds required for optimal deposition rates and weld bead aesthetics.