An intermodal container can be installed onto a container chassis, also known as an intermodal chassis or skeletal trailer. Truck drivers use chassis to transport containers between ports, rail yards, depots for shipping containers, and shipper facilities. Trucking of this kind is also referred to as drayage. A specialized crane is used to raise the container onto a chassis, aligning the corner castings with the twist locks on the chassis (pins). The pins are then inserted to lock the container to the chassis. Which container lengths a chassis can accept depends on its length. For a 40-foot-long container, for instance, a 40-foot-long chassis is utilized. Depending on the type of container that needs to be moved, several chassis can be lengthened or shortened.
The kingpin on a chassis allows it to be attached to a semi-tractor. When they are not attached to a tractor, they also include a set of legs known as landing gear that may be lowered to allow for parking. On the chassis, portable generators—also known as gensets—can be placed. A refrigerated container is powered by these gensets. Some chassis in the US have sliding tandems, particularly 20-foot and 53-foot chassis.
To adhere to weight constraints set down in federal bridge law, the tandems are pulled back for heavy cargo. To identify each vehicle in a fleet, an identifying number is typically stenciled on the chassis. A chassis’ reporting mark must terminate with the letter “Z” in accordance with ISO 6346. For instance, ABCZ-123456 7 would indicate that the item in question is a chassis, exactly 1234567 in the ABC company’s fleet.
The ISO tank containers or portable bulk liquid containers employ the tank container chassis as a version. They are often longer and have a lower deck height than regular chassis, making them perfect for moving payloads that are continuously altering. Additionally, this chassis can be equipped with hose tubes, lift kits to help with product discharge, and hi/lo kits to transport two empty tanks. Over time, the tank chassis has changed to support heavier payloads. They are available in tandem, spread, tri, and hi/lo combo axle configurations.
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