We have already discussed the 20 ways shipping containers changed the world and also how and who invented them.
We know that shipping containers come in all sorts of shapes and sizes and today, we want to look at exactly how shipping containers are made.
In a modern world where many things are made by machines now, it was amazing to see this isn’t the case with shipping containers.
Step 1: Wall Panels
To do this, large steel sheets are cut down into 8 foot x 3 foot sheets. The sheets are then sandblasted and corrugated. The sheets are corrugated to add strength to them and this is what gives shipping containers their wave like texture.
The final step to complete the wall panel is to weld square tubing onto the top and bottom of the wall. This tubing is used later on to weld the floor and roof to the wall.
Step 2: Floor Frame Assembly
The floor frame is predominantly made up of I-beams. Two longer I-beams are laid out perpendicular to each other. Then smaller I-beams are welded in between the longer I-beams to create a raft like base.
Step 3: Doors and Corner Posts
Again, like the side walls, the doors are mainly made out of corrugated steel. Once the corrugated steel has been cut to size, it is encased in square steel tubing. The doors are then sanded smooth again to remove any rough welding joints.
Step 4: Completing the Box
Step 5: Painting and Priming
Step 6: Flooring
Six plywood panels are used to floor the container. However, before they are fitted, the panels are varnished with a protective coating. This protective coating makes sure that bugs and other pests aren’t present in the wood.
Step 7: Decals, Identification and Doors
The container also needs labeling with its unique identification code which can be used to identify the container from anywhere in the world.
The identification code has 11 alphanumeric characters each of which corresponds to a meaning.
The fourth character is a ‘Product Group Code’ which can either be U, J or Z.
U = Shipping Container.
J = Any piece of equipment than can be attached to a shipping container- i.e. a power unit.
Z = Trailer used to transport a shipping container.
The fifth to tenth characters make up a serial number which is assigned by the container’s owner. This serial number is used by the specific container’s owner to identify the container.
The final character is known as a ‘Check Digit’. It’s used to verify the previous 10 characters.
Once the container has been labelled, the door handles and locking mechanism are fitted. A rubber seal is then wrapped around the doors to ensure they are water tight.
Step 8: Waterproofing and Testing
Once the sealant has dried, the container is soaked in water and then inspected for any leakages or defects.
If no defects or leaks are found, the container is now complete and can be transported to its intended location.
If you are looking to buy either new or used shipping containers please contact us and our representatives will be happy to help you.