Abstract: Provide the stacking process of the stacker, and study the time budget during the operating, determine the slewing speed, and provide the meticulous selection for the slew bearing, and also analyze the design principle of the stacker luffing.Provide the reclaiming process of the reclaimer, analyze the matching relationship among the slewing speed ,the scraper operating speed and luffing speed of the reclaimer,determine the matching design principle. Provide the project application. The idea and method of the study can guide the design, and also provide the theoretical reference for the research of the meticulous design for the circular stacker and reclaimer.