K245 - Lincoln Electric K245 Crater Fill Control Board for NA-3/NA-4

Eliminate Weld Defects with the Lincoln K245

Achieving the perfect weld requires control from start to finish, and the Lincoln Electric K245 Crater Controls P.C. Board is the key to mastering the end of your weld. Designed specifically for the NA-3S and NA-4 automatic controllers, this essential accessory solves one of the most common problems in automated welding: crater cracking. When a high-amperage arc stops suddenly, the cooling weld pool shrinks, often leaving a crater that can crack and lead to weld failure. The K245 eliminates this risk by giving you precise command over the finishing current and voltage, ensuring every weld is topped off smoothly and securely.

Seamless Compatibility and Control

The K245 is an OEM part from Lincoln Electric, guaranteeing perfect compatibility with your existing NA-3S or NA-4 equipment. It installs directly into the controller, unlocking the ability to adjust the finishing parameters independently of your main welding settings. Do you need a lower voltage to fill a gap at the end? Or perhaps a specific current duration to build up the bead size? The K245 allows you to fine-tune these variables for an adjustable period of time. This level of control is vital for shops running repetitive automated lines where consistency is money.

Easy Installation for Immediate Results

You don't need to be an electronics engineer to upgrade your system. The K245 is designed to be field installable, meaning you can get it up and running quickly to minimize downtime. Weighing just 2 pounds and measuring approximately 9.25 inches in length, it fits neatly within the controller assembly. By investing in the K245 Crater Controls P.C. Board, you are investing in the longevity of your welds and the efficiency of your operation. Say goodbye to manual touch-ups and crater filling; let your automatic system handle the job with the precision that only Lincoln Electric technology can provide.