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KP52079-052C - Lincoln Electric .052 Knurled Drive Roll Kit for Flux-Cored Wire

Packaging: 1 Per Ea
$981.06/EA $613.16/1 Per Ea only $613.16/EASave 38%

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SKU: KP52079-052C Categories: ,

OVERVIEW

Optimized Wire Feeding for Industrial Applications

The Lincoln Electric KP52079-052C Drive Roll Kit is a critical component engineered to enhance the performance and reliability of industrial wire feeding systems. Specifically designed to accommodate .052-inch (1.3 mm) diameter welding wires, this kit addresses the unique challenges associated with feeding tubular consumables. In heavy fabrication environments utilizing Flux-Cored Arc Welding (FCAW) or Metal-Cored Arc Welding (GMAW-C), the physical properties of the wire necessitate specialized handling. Unlike solid wires, cored wires possess a tubular structure that is more susceptible to deformation under compressive force. The KP52079-052C features a precision-machined knurled surface that engages the wire sheath with mechanical teeth, providing positive traction without the need for excessive clamping pressure.

Engineering and Compatibility

Manufactured from high-grade hardened steel, these drive rolls are built to withstand the rigorous demands of continuous industrial operation. The knurled geometry is calculated to maximize grip while minimizing the generation of metal shavings, a common issue with inferior roll designs. By allowing operators to reduce the tension settings on the wire feeder drive arm, these rolls prevent the "ovalizing" or crushing of the wire. Preserving the roundness of the wire is essential for maintaining good electrical contact at the contact tip and ensuring smooth travel through the gun liner. This kit is compatible with a range of Lincoln Electric wire feeders, including the popular Flex Feed and LF series, making it a versatile solution for shops with mixed equipment fleets.

Operational Efficiency and Maintenance

Consistent wire feeding is the foundation of stable arc characteristics and high-quality weld deposits. Slippage or erratic feeding can lead to arc instability, burn-backs, and increased spatter, all of which reduce productivity and increase cleanup time. Implementing the correct drive roll for the specific wire size and type is a fundamental best practice in welding automation and manual application. The KP52079-052C ensures that the wire feed speed (WFS) remains constant, directly correlating to stable amperage and voltage output. For maintenance personnel, these rolls are designed for straightforward installation, ensuring minimal downtime during changeovers. Regular inspection of drive rolls for wear is recommended to maintain optimal system performance.

Additional Information
Brand:Lincoln Electric
Wire Diameter:0.052"
Roll Type:Knurled
Application:Flux-Cored Wire, Metal-Cored Wire
Compatible Feeders:Lincoln Flex Feed, LF Series
Material:Hardened Steel
Packaging Description:1 Per Ea

INCLUDED

  • (2) .052" Knurled Drive Rolls
  • Installation Instructions

APPLICATIONS

  • Structural Steel Fabrication
  • Heavy Equipment Manufacturing
  • Flux-Cored Arc Welding (FCAW)
  • Metal-Cored Arc Welding (GMAW-C)
  • Shipbuilding and Marine Repair
  • General Industrial Fabrication

FAQ

Knurled drive rolls are specifically designed for tubular wires, such as Flux-Cored (FCAW) and Metal-Cored (GMAW-C). These wires are softer and hollow, requiring the mechanical grip of the knurling to feed without the high crushing pressure used for solid wires.

No, drive rolls must match the wire diameter exactly. This kit is precision-machined for .052-inch wire. Using it on smaller wire results in slippage, and using it on larger wire can cause binding or damage to the wire.

Crushing usually happens when using smooth V-groove rolls (meant for solid wire) on cored wire. To get traction, operators over-tighten the tension. Switching to this knurled kit allows you to loosen the tension while maintaining grip.

Yes, the KP52079-052C is a genuine Lincoln Electric part, ensuring perfect fitment and compatibility with Lincoln wire feeders designed for the KP52079 series rolls.

Installation typically involves removing the retention cap or screw on the drive hub, sliding off the old rolls, and sliding on the new ones. Ensure the keyway aligns and the rolls are seated fully before replacing the cap.

Using knurled rolls on solid wire will create small indentations and shavings on the wire surface. These shavings can accumulate in the liner and contact tip, leading to clogs and poor electrical conductivity.

Typically, the KP52079-052C SKU refers to the drive roll kit itself. While some kits include guides, it is standard practice to verify if your specific feeder setup requires separate guide tubes for the .052 size.

Drive rolls should be replaced when the knurling becomes worn or clogged with debris, causing slippage. In high-production environments, they should be inspected weekly as part of preventative maintenance.