QJL-116 - Bernard QJL-116 Jump Liner .045-1/16 Inch (10 Pack)

Precision Engineering for MIG Gun Necks

The Bernard QJL-116 Jump Liner is a critical replacement component for professional welders utilizing Bernard Q-Gun, S-Gun, and T-Gun series MIG guns. The "jump" liner serves a specific and vital function: it lines the gooseneck of the welding gun, covering the distance between the end of the main cable liner and the contact tip. Because the neck is where the wire undergoes the most significant bending stress, the liner in this section is subject to accelerated wear compared to the rest of the conduit. Replacing the jump liner independently of the main liner is a smart maintenance strategy that saves time and money while restoring optimal wire feed characteristics.

Designed to accommodate wire diameters from .045" to .062" (1/16"), this liner is versatile enough for heavy fabrication tasks involving thicker wires. It is rated for use with 200, 350, and 500 Amp guns, ensuring it can handle the heat and duty cycles associated with industrial welding applications. The liner material is selected to minimize friction, which is crucial for preventing wire shaving—a common issue that leads to clogged liners, erratic arcs, and burn-backs. By ensuring a smooth transition through the neck, the QJL-116 helps maintain a stable arc and consistent wire stick-out.

This product is supplied as a 10-pack, recognizing that jump liners are consumables that require regular inspection and replacement. For welders working in high-volume production environments, having a ready supply of jump liners means you can address feeding issues immediately at the bench. The installation process is designed to be quick, minimizing the time the torch is offline. When you notice drag in the wire feed or erratic arc behavior, checking and replacing the jump liner is often the first and most effective troubleshooting step.

Using genuine Bernard parts like the QJL-116 ensures perfect fitment within the neck assembly. Improperly sized or generic liners can leave gaps where the wire is unsupported, leading to bird-nesting or increased resistance. Trust in the engineering of Bernard to keep your wire delivery system functioning at peak performance, allowing you to focus on weld pool control and penetration.