In 1890, the Case Company expanded to South America, opening a factory in Argentina. In 1891, the company's founder died. By this time the Case company produced portable steam engines to power the threshing machines, and later went into the steam traction engine business. By the start of the 20th century, Case was the most prolific North American builder of engines. These engines ranged in size from the diminutive 9 HP, to the standard 15, 25, 30, 40, 50, 65 HP and up to the plowing 75 and 80 HP sizes. Case also made the large 110 HP breaking engines with its notable two-story cab. Nine massive 150 HP hauling engines were made, in addition to steam rollers. Case engines were noted for their use of Woolf valve gear, feedwater heaters, and the iconic "eagle" smokebox covers. Case had built a total of 36,000 steamers by the time it switched to gas tractors in 1927.