If you wish to LOAD your container on the ground and have it collected later LOADED you must make your supplier aware of this. The container you require will require a CSC plate and certificate even if it is not being shipped; the mere fact that it is being used as a container with a load in transport or lifted requires it to be certificated. In the event of an accident the lifter or driver and the contractors of such will not be insured and will be legally liable for any claims! Also the lifter that delivers may not be the one that collects. An empty lifter will most often use 4 chains connected to a central hook ( a set of brothers) which will be connected to the container via the four top corner castings to lift the empty container, but when loaded the container should not be lifted in this manner ( they can bend ). You will in all probability require a loaded lifter. These can easily lift a payload of 20 + tons, but because of the gross road train weight restrictions , usually are only prepared to take maximum of 17 tons again discuss with your supplier. When these vehicles are used they most usually lift from the bottom castings of the container with two separated lifters, which are placed either end of the trailer, this method requires two substantial landing legs positioned each end of the container and the vehicle will have to park immediately adjacent to container, whereas the empty lifter did not have to. So if this is your desired requirement you will have to ensure the collection of the loaded container can be effected or you may have to unload your container and start again.
Placing a container to the ground
Each recently built shipping container is designed to take the weight of 8 loaded containers on top of it. Each container can weigh, when loaded 30 tons gross weight each, which = 240 tons on the bottom container .this load is supported by the containers four corner posts.
At the top and bottom of these four corner posts are the corner castings.
Four in top of each corner and four in bottom of each corner. It’s from these top castings that the containers are lifted.they are also used to lock onto the ship / another container / a lifter /a trailer / a railwagon etc by the bottom castings and they are capable of bearing the entire weight of a loaded container. And it’s on these castings your container should sit, you can use four independent plinths, such as concrete blocks, bricks, wooden blocks etc, but they are most succesfull when placed upon two wooden or concrete railway sleepers or similar. Placed horizontally one each end.
This help’s maintain the ends of the container in square configuration. Keeping the container square is essential for easy opening of the doors , keeping the door seals tight to the frame to prevent water ingressing.
Raising the containers create’s an air flow under the container ,which keeps the container floor dry and steel understructure rust free.
Placing a packer under the castings at the front ( blank end ) of the container will, if there are any leaks or spills send the fluid to the rear where it will drain and not puddle and will also show you there is a problem. (If you had even a small leak and the water stayed in the front of the container it could over time build to a giant puddle and cause you a lot of condensation problems.)
ou can place the container directly to the floor on a concrete, paved, or tarmac type surface, this method is not likely to present any problems, shingle , planings or scalpings are also ok providing they are flat and most essentially well drained, but dirt,grass, and mud, long term will lead to eventual problems, i.e. rusting of understructure and dampness ingressing through the 27mm ply floor, which can cause condensation problems inside the container.