Unlike the previous ones, the pneumatic unloading wheeled tanks Mod. AP allow the transfer of feed through a pneumatic compression system operated by the tractor's PTO. Also for these models the product loading takes place from above through a lateral sliding roof, but in the lower part, the tank has a system composed of a compressor and rotary valve capable of filling silos up to 10 m. high with a variable capacity from 5000 to 7000 kg. /h. On request it is possible to equip the tank with mechanical, hydraulic or pneumatic braking systems and also a two-chamber version can be made for the transport of two different products.