K1170 - Lincoln Electric AC225 Stick Welder 230V 225A

The Legendary Lincoln AC225 "Tombstone" Welder

For decades, the Lincoln Electric AC225 Stick Welder has been the gold standard for durability and reliability in home shops, farms, and maintenance departments across North America. Often affectionately referred to as the "tombstone" or "buzz box" due to its iconic shape and sound, this machine is built to last a lifetime. Whether you are repairing broken farm equipment, fixing a trailer frame, or working on a hobby project in the garage, the AC225 provides the power and consistency you need to get the job done right.

The K1170 model is designed for 230V single-phase input power, making it a powerful step up from smaller 110V units. With a broad amperage range of 40 to 225 amps, this welder is incredibly versatile. The lower settings allow for precision work on thinner materials using smaller electrodes, while the upper range provides enough heat to penetrate heavy plate steel using up to 3/16-inch diameter electrodes. The smooth AC arc is forgiving for operators of all skill levels, helping to maintain a steady puddle and produce strong, clean welds on mild steel, low alloy steel, stainless steel, and even cast iron.

User-Friendly Operation

One of the standout features of the AC225 is its simplicity. The front panel features a large, easy-to-turn selector switch that locks into specific amperage settings. This eliminates the guesswork often associated with infinite dials and ensures you can return to the exact same setting every time. Setup is equally effortless; the unit comes pre-wired with a 6-foot input power cord and a standard NEMA 6-50P plug, so you can plug it directly into a compatible 50-amp outlet and start welding immediately.

This package is ready to weld out of the box, including a heavy-duty electrode holder, a robust work clamp, and all necessary cabling. Its fan-cooled design ensures the internal components stay within safe operating temperatures, extending the life of the machine. If you are looking for a welder that offers a perfect balance of power, price, and proven performance, the Lincoln AC225 is the undisputed champion.