0459990085 - ESAB Steel Liner Yellow 1.2-1.6mm for 3-4m PSF Torches

Technical Overview of the ESAB 0459990085 Steel Liner

The ESAB 0459990085 is a high-performance steel liner designed specifically for the ESAB PSF series of MIG welding torches. Engineered to accommodate solid steel wires, this liner features a spiral-wound construction that provides the necessary rigidity and flexibility to guide welding wire smoothly from the feeder to the contact tip. It is calibrated for wire diameters ranging from 1.2mm (0.045 inches) to 1.6mm (1/16 inches), making it a versatile component for medium to heavy-duty industrial welding applications.

This particular liner is color-coded yellow according to ESAB's standard identification system, allowing technicians to quickly verify wire compatibility without measuring tools. It is manufactured to fit torches with cable lengths of 3 meters (10 feet) and 4 meters (13 feet). For 3-meter torches, the liner may require trimming to the exact length during installation to ensure optimal fitment and gas flow. The steel composition is optimized for standard mild steel and low-alloy wires, minimizing friction and wear inside the cable assembly.

Proper liner maintenance is critical for automated and manual welding processes. The 0459990085 ensures that the wire path remains unobstructed, which is vital for maintaining constant voltage and amperage parameters. By reducing drag and preventing micro-vibrations in the wire, this genuine ESAB part helps maintain the integrity of the arc and the quality of the deposited weld metal.