The Mitsui Seiki Vertex 55X II is a precision 5-axis vertical machining center designed for complex, high-precision manufacturing applications. Equipped with a FANUC 31i CNC control system, this machine delivers advanced automation and sophisticated motion control capabilities. The control system supports multiple axes with nanometer resolution throughout the entire motion system, enabling superior surface finish and dimensional accuracy. The Vertex 55X II features a robust working envelope of 21.7 inches (X-axis), 23.6 inches (Y-axis), and 17.7 inches (Z-axis), accommodating mid-sized workpieces with precision positioning capabilities. The 5-axis configuration allows for simultaneous multi-directional cutting operations, reducing cycle times and enabling complex part geometries to be machined in fewer setups. The machine's substantial footprint of 14.1 feet by 10.8 feet and weight of 20,900 pounds provides the rigidity necessary for high-speed, high-precision machining operations. The FANUC 31i controller integrates advanced motion control algorithms that optimize toolpaths and feedrates while maintaining specified precision levels, supporting high-speed internal bus architecture and optical fiber data transfer for enhanced performance. This configuration makes the Vertex 55X II ideal for manufacturers requiring precision machining of complex components in aerospace, automotive, medical device, and mold-making industries, combining the machine's mechanical precision with FANUC's cutting-edge CNC technology for optimal productivity and surface quality.