QJL-3545 - Bernard QJL-3545 Jump Liner .035-.045 (10-Pack)

Optimized Maintenance with Bernard QJL-3545 Jump Liners

The Bernard QJL-3545 Jump Liner Assembly is a strategic consumable designed to enhance the efficiency and longevity of industrial MIG welding operations. In high-volume welding environments, the liner section located within the gun's neck (or gooseneck) is subjected to the most extreme heat and mechanical stress. Constant bending and thermal cycling often cause liners to kink or clog in this specific area, leading to erratic wire feeding. The QJL-3545 addresses this issue by allowing operators to replace only the compromised neck section of the liner, rather than the entire length of the gun's conduit.

This 10-pack of jump liners is engineered specifically for wire diameters ranging from .035" to .045" (0.9 mm to 1.2 mm), covering the most common steel and flux-cored welding applications. They are compatible with Bernard's 200, 350, and 500 Amp MIG guns, including the popular Q-Gun, S-Gun, and T-Gun series. By utilizing a jump liner system, facilities can significantly reduce consumable waste and lower operational costs. Instead of discarding a 15-foot or 25-foot liner due to a failure in the last 12 inches, the main liner remains in the cable while the QJL-3545 handles the high-wear zone.

Installation is straightforward and designed to minimize downtime. The jump liner connects to the standard liner at the base of the neck, ensuring a smooth transition for the welding wire. This assembly is particularly beneficial in robotic or semi-automatic applications where consistent wire positioning is critical. The 15-inch length is perfectly sized to run from the neck base up to the contact tip, ensuring full support of the wire through the bend. By maintaining a fresh liner in the neck, arc stability is preserved, and common defects associated with poor feeding—such as burnback and birdnesting—are drastically reduced.

Investing in the QJL-3545 Jump Liner system represents a shift towards smarter preventative maintenance. It ensures that your welding equipment remains in peak condition without the excessive cost of frequent full-liner replacements. This product is an essential stock item for any maintenance, repair, and operations (MRO) inventory supporting Bernard welding equipment.