KP4800-25 - Lincoln Magnum PRO Aluminum Push-Pull Liner 25ft

Optimized Conduit for Magnum PRO Systems

The Lincoln KP4800-25 is a specialized Fixed Conduit Liner designed explicitly for the Magnum PRO AL series of Push-Pull MIG guns. Measuring 25 feet in length, this liner serves as the critical guidance system for soft aluminum wires as they travel from the feeder to the contact tip. In push-pull operations, the synchronization between the cabinet motor and the gun motor is vital; this liner facilitates that process by providing a low-friction, dimensionally stable path that prevents the wire from buckling or dragging under the push-pull force.

Technical precision is at the heart of the KP4800-25's design. Aluminum wire is notoriously susceptible to deformation and surface damage when forced through standard liners. This product utilizes materials and internal geometry specifically selected to handle soft alloys. By reducing the coefficient of friction inside the conduit, Lincoln Electric minimizes the generation of aluminum shavings—microscopic particles that can accumulate in the liner or contact tip, causing erratic arc performance and burn-backs. The "Fixed Conduit" designation ensures that the liner maintains its structural integrity over the full 25-foot span, preventing compression or elongation that could disrupt the precise wire feed speed control required for pulse-on-pulse or standard spray transfer modes.

Maintenance and fleet management are simplified thanks to the broad compatibility of this component. The KP4800-25 is engineered to fit all iterations of the Magnum PRO AL Push Pull Guns, eliminating the need to stock multiple liner SKUs for different gun versions. This backwards compatibility ensures that whether you are running the latest equipment or maintaining trusted older models, you have access to premium OEM performance. For industrial welders demanding precision in long-reach aluminum applications, this liner provides the reliability necessary to meet strict code requirements and production deadlines.