The SIASUN Assisted Assembly Mobile Robot is designed for interior and finishing-line processes in automotive manufacturing. With a 2,500–3,500 kg payload, it integrates differential drive and multi-mode navigation to deliver high-precision positioning and flexible path planning. The robot can be equipped with various modules to handle automated transport and precise docking of complex components. Supporting customization, it quickly adapts to line upgrades and model changes. With trackless flexibility and wireless charging, it significantly improves assembly efficiency and production agility, providing strong support for smart manufacturing.