The portable tanks with pneumatic discharge Mod. AG allow to transfer large quantities of feeds and cereal from a mill to the storage silos in a farm. The bulk products are loaded through the top through a side-sliding roof and the discharge occurs by means of an air compressor and a rotary valve. The system is able to fill silos up to a height of 10 m. with a delivery capacity in between 5000 and 7000 Kg/h. Two-chamber versions for two different products are available on demand too. It is also possible to equip the tanks with mechanic, hydraulic or pneumatic brakes and to apply for a permit to drive the tanks on public roads.