In scenarios such as ports and terminals, logistics warehousing, and modular construction, the handling of containers and heavy-duty functional modules has long faced three major challenges: high dependence on large lifting equipment, operational constraints in narrow spaces, and coexistence of labor costs and safety risks. The emergence of mechanical liftable container casters, with their innovative purely mechanical structure design, breaks the limitations of traditional handling tools, becoming a "hardcore solution" for scenarios without cranes or forklifts, and redefines the efficiency and safety standards of heavy cargo transfer.