If they are, then corner castings are the shipping container equivalent of superheroes. They don’t have capes or superpowers, but the job they do is vital to making sure containers stay strong and secure during transport. Why don't you join me we'll go under the hood and check out how these little guys protect and make our stuff get from A to B?
If not for the corner castings, you would not be able to stack containers on top of each other. This in turn would restrict the amount of goods that can be transported at the same time by ships, trucks and trains, resulting in more expensive shipping and longer delivery times. In more laymen terms, corner castings are those which allow us the luxury of having products available to us in abundance at any given time.
Corner castings serve a purpose other than simply making it easier to stack and secure containers during transit. When containers are stowed on ships, lorries or on freight trains, the twist locks are used to attach the containers to the other containers, lorries or flatbed train cars at the corners. And the best container padlock will stay put no matter how bumpy the trip.
In addition to firmly holding the containers corner castings also ensure a uniformly distributed load. This is significant as an asymmetrically placed weight might make the container unstable and tip over. Corner castings allow shipping companies to have confidence that their containers will be stable and well supported during transportation.
The various corner fittings are not only essential for logistics but also important for improving the strengthening effect of the container. A connection with a container corner casting is welded into a corner of the container which applies greater strength to weak corners of the containers and increases the strength and durability of the containers.
Through the years there have been numerous improvements in corner casting technology to enhance the safety and security of container moving. One such improvement is the provision of corner castings incorporating twist lock pockets. As a result, twist locks are the easiest to attach and detach from the corner castings, which greatly improves the loading & unloading efficiency.
US 4,264,479 discloses an additional development in iso container corner casting technology involving the use of high tensile steel alloys. The corner castings are therefore less likely to bend or break, since these alloys are considerably stronger than the standard steel. This ensures that the containers can take on more pressure and impacts during transport, and help prevent damage to the items inside.
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