The H-series horizontal machining center is a cost-effective CNC machine tool, specially designed for complex machining of box-type parts and equipped with the Japanese FANUC CNC system. This machine tool can complete multi-surface machining in one clamping, including milling, drilling, reaming, counterboring, plane machining, tapping, and boring. It is particularly suitable for parts manufacturing that requires high machining accuracy and production efficiency. Its versatility can replace special fixtures and marking processes, significantly reducing workers' labor intensity. It is widely used in industries such as automobile, motorcycle, aerospace, military industry, instrumentation, electronics, and mold making. It is especially good at machining small and medium-sized disc parts, plate parts, housings, valve bodies, and cams that require high hole spacing accuracy. The programmed machining effectively shortens the production cycle. The H-series machine tool is equipped with a fully enclosed protective cover, which effectively prevents the splashing of cutting fluid and chips, and has a simple and elegant appearance design. It adopts a well-known Taiwan brand complete set of spindles with excellent performance, strong tool pulling force, and long durability. A variety of optional configurations are available: exchange worktable, spindle oil cooler, through-spindle coolant system, ZF spindle gearbox, large-capacity tool magazine, as well as high-power spindle motor and feed motor, to meet different processing needs. The core components of the machine tool (bed, column, saddle, worktable, and spindle box) are all made of high-quality high-shock-resistant gray cast iron, manufactured by ISO9000-certified enterprises using special casting processes to ensure material mechanical properties. After double aging treatment, internal residual stress is completely eliminated, enabling the machine tool to exhibit excellent rigidity, shock absorption, thermal stability, and long-term accuracy retention during heavy cutting and intermittent machining. The three-axis sliding guide design balances high-speed, high-precision, and heavy-cutting characteristics, and combined with an automatic forced lubrication system, significantly improves the machine tool's accuracy life and rigidity. The whole machine is optimally designed using 3D CAD software, and key components have their optimal structures determined through computer finite element analysis. The large-section bed, large-span guide rails, and A-type column design endow the machine tool with excellent strength, rigidity, and thermal stability, ensuring stable and reliable machining performance.