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The Lincoln Electric KP3991-50 is a 50-foot conduit liner specifically engineered for Magnum PRO AL Push-Pull gun series. It is constructed from fluoropolymer-based (PTFE) low-friction materials to facilitate the smooth transmission of soft aluminum wire from the feeder to the contact tip over extended distances, maintaining the necessary synchronization between push and pull motors.
Features
Low-friction internal surface minimizes coefficient of friction against aluminum electrodes
Reduces wire shaving, buckling, and deformation during feeding
Prevents bird-nesting by maintaining wire column strength over 50-foot distances
Engineered to maintain torque and speed balance between cabinet and gun motors
Manufactured to precise tolerances to ensure secure fit within the cable assembly
Prevents gas loss through proper alignment with drive rolls and contact tip
Minimizes variable drag to ensure arc consistency and stable duty cycles
Facilitates smooth wire transmission to reduce downtime from wire burn-back
