K613-12 - Lincoln Thru-Arm Large Liner Connector

Keep Your Robot Running Smoothly

When you are managing a fleet of welding robots, the last thing you need is a wire feed issue stopping production. The Lincoln Electric K613-12 Connector is the part you need when you are swapping out liners on your Thru-Arm robotic guns. If you are running large diameter wires, you know that the liner needs to be held securely to prevent "birdnesting" or chatter at the drive rolls. This connector is the bridge that holds your large liner in place, ensuring the wire slides through the arm and out the tip without a hitch.

Thru-arm robots are great for access and cable protection, but they can be a pain to service if you don't have the right parts. The K613-12 is designed to fit perfectly into the Lincoln Electric assembly, taking the guesswork out of the installation. You don't want to be jury-rigging connections inside a robot arm where you can't see them; using this genuine Lincoln part means you can install it and forget it. It is built tough to handle the twisting and turning of the robot wrist without coming loose or cracking.

This specific connector is for "Large Liner Sizes," so check your setup. If you are pushing .045, .052, or 1/16" wire, you are likely using the larger liners that this connector is built for. Replacing worn connectors is a smart preventative maintenance move. If your old connector is stripped, bent, or clogged with spatter, it's going to cause drag. Swapping in a fresh K613-12 restores that smooth, low-friction path your wire needs for a consistent arc. Keep a few in your crib so you aren't waiting on shipping when a machine goes down.

Why Welders Choose OEM:

• Perfect Fit: No filing or forcing; it threads or locks right in.
• Reliable Feeding: Stops the liner from slipping back and causing burn-backs.
• Durable: Handles the heat and abuse of a 24/7 welding environment.