Abstract: A method and a central-belt machine are provided for filling an order container. The central-belt machine includes two central belt provided with articles along a virtual window of an order, and the articles being discharged to the order container at a filling point at the front longitudinal end (V) of the central belt. The two central belts (1, 2) of the central-belt machine, are arranged vertically one above the other, to fill the order container (3), for an order, by at least one interposed vertical conveyor (4) at a single filling point (P) of the lower central belt (2).