Over the past century, vacuum technologies have undergone dramatic transformation—driven by growing industrial demand, tighter process requirements, and advancements in materials science. At the forefront of these innovations stands the steam ejector vacuum system, a workhorse in industries requiring reliable and efficient vacuum generation. Among the companies pioneering this evolution, Croll Reynolds has played a critical role in engineering high-performance systems tailored for modern industrial needs. From early chemical processing applications to today’s high-efficiency hybrid systems, the journey of steam ejectors reflects the broader narrative of industrial advancement.