0700200088 - ESAB Replacement Steel Liner for Caddy Mig C200i (.035-.045)

Precision Wire Delivery for ESAB Systems

The integrity of the wire feeding system is a critical variable in the equation of arc stability and weld quality. The ESAB 0700200088 Steel Liner is an engineered component designed to maintain the precise delivery of welding wire through the torch cable assembly. Specifically calibrated for wire diameters ranging from .035" to .045", this liner provides the optimal internal clearance required to minimize friction while preventing the lateral movement that leads to micro-arcing inside the contact tip.

Constructed from high-tensile steel wound in a tight spiral, this liner offers the mechanical rigidity necessary to support solid steel wires and flux-cored wires. In MIG/MAG welding, the liner acts as the conduit that translates the force from the drive rolls into linear motion at the contact tip. A compromised liner—whether clogged with shavings, kinked from improper handling, or worn from abrasion—introduces drag. This drag forces the drive motor to work harder, leading to slip, erratic feeding, and ultimately, burn-back or bird-nesting. By utilizing this genuine ESAB replacement, operators ensure that the friction coefficient remains within factory specifications for the Caddy Mig C200i.

Maintenance of the liner is often overlooked in industrial MRO schedules, yet it is paramount for consistent uptime. Over time, the drawing lubricant from the wire and environmental dust accumulate within the spiral, increasing resistance. Replacing the liner with the 0700200088 restores the system to its original performance parameters. At 13 feet in length, it is sized for standard torch leads associated with the Caddy Mig series, though it should always be measured and trimmed according to the specific gun assembly procedures to ensure zero gap at the gas diffuser.

For fabrication environments demanding repeatability, using the correct liner material is non-negotiable. While polymer liners are reserved for soft alloys like aluminum, this steel liner is the industry standard for carbon steel and stainless steel applications, providing the durability to withstand the abrasive nature of hard wires.