ACF Cylindrical Covered Hopper

Prototype Information

The ACF cylindrical covered hopper was developed by American Car and Foundry (ACF Industries) in the mid-20th century. It was designed to carry dry bulk goods like grain, plastic pellets, and cement. The cylindrical shape allowed materials to flow better and made cleaning easier.

These cars featured roof hatches for loading and bottom outlets for unloading. The covered design kept the cargo protected from weather. Common versions had capacities between 4,600 and 5,250 cubic feet.

They became widely used in the 1960s and 1970s, especially for grain transport. Railroads and private companies used them across North America. Even today, many of these cars are still in service. Their design influenced other railcar makers and helped modernize bulk transport.