SECU (container)
SECU, Stora Enso Cargo Unit, is a type of intermodal container built to transport bulk cargo like paper on railway and ship. They were invented and used by Stora Enso. The ports used are mainly in production countries like Finland and Sweden and in consumer countries Belgium, UK and Germany.
A SECU looks like a larger standard 40-foot ISO Container, measuring with a net weight of of cargo. By contrast a 40-foot container is and can carry of cargo. The benefit is that their larger capacity reduces the number of containers needed, and therefore their handling cost. The drawback is that special care is needed to handle them.
A SECU is too big and heavy to be transported by road, and instead they are transported only by railway and ship. A special vehicle or crane is used to load and unload them, and special railcars are also needed. They can be transported on truck ferries, but do not fit normal container ships.