TheJGR Class 5500was a type of4-4-0steam locomotive used for 60 years onJapanese Government Railways.The locomotives were built byBeyer, Peacock & Companyin England.Sulfurwas added to the forged steel used for the cylinders. The cylinders were set in a slightly canted position and were used without replacement for the entire life of the locomotive. Japan was unable to produce cylinders of comparable durability. In 1929, ten were converted to tank locomotives and reclassified asClass B10.
One Class 5500 locomotive, 5540, is preserved at theOme Railway Park.[1]A Class B10 locomotive, B104, is preserved at the Kominato Railway headquarters.