Planetary gearboxes have become core transmission components in palletizing robots because their technical characteristics precisely match the robots’ key operating requirements, including heavy payload handling, high-frequency start-stop cycles, precise positioning, 24-hour continuous operation, and limited joint installation space. Compared with traditional reducers such as cycloidal pinwheel reducers and conventional spur gear reducers, planetary gearboxes offer multiple irreplaceable advantages in terms of application adaptability, operating performance, and cost efficiency.