K3359-100IC - Lincoln Magnum PRO Robotic 550 Air-Cooled MIG Gun for Fanuc 100iC

Built for the Grind: Magnum PRO Robotic 550

When your production line is running 24/7, you need a robotic gun that can take a beating and keep on welding. The Lincoln Electric Magnum PRO Robotic 550 (K3359-100iC) is built exactly for that purpose. Designed to fit the Fanuc 100iC robot, this air-cooled gun features a thru-arm design that keeps your cables protected inside the robot arm, preventing them from snagging on fixtures or getting chewed up during fast, repetitive movements. We know that cable failure is one of the leading causes of downtime in robotic cells, which is why Lincoln Electric built these cables to last twice as long as standard industry requirements.

For the welding team, the biggest advantage of this gun is the Single Tool Center Point (TCP). Usually, if you need to switch from light-duty welding to heavy-duty welding, you have to swap the whole gun or front end and then spend hours reteaching the robot exactly where the tip is. With the Magnum PRO 550, you can swap between 350-amp and 550-amp consumables without the TCP moving a millimeter. This means you can change your setup and get back to running parts immediately. The consumables themselves are part of the Magnum PRO line, known for long life and easy replacement, reducing the frequency of contact tip changes.

Reliability at the arc is guaranteed by the HexConnect™ bushing. Old-school guns often lose connection at the bushing, causing the arc to sputter or the gun to overheat. The HexConnect design creates a solid, full-face connection that handles high amperage without breaking a sweat. Whether you are welding thick structural steel or precision automotive parts, this gun delivers a stable, smooth arc every time. The extended reach bracket also helps your robot reach into corners and tight spots that other guns might miss. It’s a tough, reliable tool that lets you focus on production targets rather than troubleshooting equipment.