The ship unloading conveyors comprises an equipment made of a mobile hopper on wheels and mobile conveyor belts. The hopper collects the bulk material from the mobile shaft of the self-unloading ship, and it is provided with a mobile covering system in order to avoid dust leakage. The material from the hopper goes down towards a first belt - extractor belt - located under the hopper, which reguloates the extraction speed of the bulk material and puts the same on a second belt with double inclination - conveyor belt. Finally, a radial belt unlopads the material coming from the conveyor and moves it into the storage area. On request, crosswise to the conveyor belt, it is possible to locate a deferrization system, made of an over band electromagentic separator, shich has the aim to catch metal eventually present in the material and collect it in a special tank. The system can be also equipped, on a specific request of the customer, with a coninuous weighing system for the capacity check.