Guide to Shipping Containers

Shipping containers serve as the backbone of intermodal transport systems, enabling goods to traverse vast distances via trucks, trains, and ships. Whether it's heavy machinery or delicately palletized goods, these containers provide a secure enclosure, shielding cargo from the perils of shock and inclement weather.

Also known as ISO containers, conex boxes, or railroad containers, these ubiquitous units adhere to the rigorous standards set by the International Standards Organization (ISO). This global body meticulously crafted dimension specifications, fostering uniformity in container design and enhancing compatibility across transportation networks.

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What sets shipping containers apart is their innate versatility, epitomized by their ability to seamlessly transition between different modes of transport. Thanks to standardized dimensions, these containers can seamlessly hop from ship to rail to truck, eliminating the need for laborious loading and unloading processes.

The evolution of shipping containers mirrors the dynamic nature of global trade itself. Initially conceived for commercial shipping, these containers have undergone continual refinement to accommodate a diverse array of products. From perishable goods to oversized machinery, containers come in myriad shapes, sizes, and materials to suit every cargo need.

Standardization has been pivotal in streamlining the transport process, allowing for smoother transitions and quicker delivery times. By adhering to established norms, logistics operators can optimize their operations, ensuring that goods reach their destination with maximum efficiency and minimal delay.

In essence, shipping containers represent more than just metal boxes; they symbolize the interconnectedness of the modern world. As trade barriers dissolve and supply chains grow more complex, these unassuming vessels play a crucial role in sustaining the global economy's heartbeat.

Looking ahead, the future of shipping containers holds promise for further innovation and refinement. With advances in technology and sustainability, tomorrow's containers may boast enhanced durability, eco-friendly materials, and even autonomous tracking capabilities.

In a world where distance is no longer a barrier to trade, shipping containers remain the silent enablers of global commerce, bridging continents and connecting markets with unparalleled efficiency. As we navigate the complexities of a rapidly evolving world, one thing remains certain: the humble shipping container will continue to shape the future of trade for generations to come.

There are different types of Shipping Containers for different types of transportation:

Common Types of Shipping Containers

Shipping Containers are another name for the conex boxes most used on the market.  Shipping Containers are typically suitable for any type of dry cargo: pallets, boxes, bags, machines, furniture, etc.

Common types include:

• Dry Storage Container
• Refrigerated Container
• Open top container
• Flat rack container
• Open Side Container
• Tanks Container
• Ventilated containers
• Dry Storage Shipping Container

Dry Storage Shipping Containers are your typical standard shipping containers.  Basic construction is made of steel, and hermetically sealed, without cooling or ventilation.  Sizes typically come in 20 ‘, 40’ or 40 ‘High Cube.  The High Cube category facilitates an increase of 13% of the internal cubic capacity and can handle the heaviest loads (coal, tobacco, etc.)

Refrigerated Shipping Container

Reefer Shipping Containers provide a temperature controlled environment. They have a power supply that connects to energy sources during transport. This allows the products to be transported at a constant temperature throughout the journey. They have the possibility to lower temperature from -18 ° to 30 °.  There are 20 and 40 foot models, in addition to the High Cube.

This type of Shipping Container is especially recommended for transporting food or products that need a low storage temperature.

Open Top Shipping Container

Open Top Shipping Container have the same measurements as the standard containers, but are open at the top because they have a removable canvas roof.  These containers facilitate the transport of bulky loads.

Flat Rack Shipping Container

Flat Rack Shipping Containers are like the Open Top, but also lack side walls and even, in some cases, front and rear walls. They are used for atypical loads and pay supplements in the same way as Open Top.

Open Side Shipping Container

Open Side Shipping Containers have the same measurements as standard containers; 20 or 40 feet, with the difference that they have a side opening. This allows for transporting very long merchandise, whose dimensions prevent it from being loaded by the back door.

Tank Shipping Container

Tank Shipping Containers are used for the liquid transport and made to carry dangerous as toxic, corrosive, highly combustible chemicals, as well as oil, milk, beers, wine, mineral water, etc. They have the same dimensions as a Dry Shipping Containers, but their structure is different, as they include a polyethylene tank inside.

Ventilated Shipping Containers

Ventilated Shipping Containers are made for transporting products such as coffee or cocoa beans, which must be ventilated in transit; sometimes these units are called “coffee containers”.

Shipping Container Door Diagram and Troubleshooting

Now we are going to run through the essential parts of a shipping container.

• For a door to work, you need hinges. Pins hold the shipping container's hinges together through a barrel.  In certain cases when doors are difficult to open, hinge pins and blades may be seized due to corrosion.  Each door is fitted with 2 to 4 vertical lock rods to enable opening, closing and locking of the doors.
• The door handle rotates the lockbar to initiate the door opening process by forcing the cams out of their keepers. Each door handle has a door locking handle retainer that slides over the door handle when in locked position.
• At the end of each lock rod is a cam welded in place which engages with knuckles, also known as cam keepers. The action of engaging the cams to the keepers forms an anti-racking function.  In certain cases, often unfortunately too many, contents of the shipping container may have shifted causing shipping container doors and lockrods to warp. 
• When opening a shipping container, start with the right hand door first. Swivel the handles, engage the cams and keepers, and twist both door handles.  Closing the doors is just a reverse of this process.
• The lock box is a steel box welded to the right hand door which overlaps a staple welded to the left hand door. A padlock, normally CISA type 285 66 can then be attached inside the lock box through the staple and is then protected from direct attack, hindering attempts to gain entry to the container.
• ISO markings and a consolidated data plate allow worldwide intermodal transport and are updated as necessary. Take note that customs authorities in some countries may also have their own container seal regulations as part of their national security.
• Rubber gaskets are fitted to the container doors during the manufacturing process and prevent water ingress. Door gaskets are designed to present two or more fins against the structure or adjacent door. These are generally flexible but when the gasket is damaged, they may become stiff thus jamming the door closed, or preventing it from being closed.

1. Doors

Two door leaves are fabricated from two vertical rolled hollow sections and 2 horizontal c section members. The frame is infilled with corrugated steel paneling.

These are normally attached to the rear corner posts each with four drop forged steel hinge blades. The blades allow 270 degree opening which allow the doors to swing back against the container side wall.

(Cargo may shift during transit. Look at the container to make sure that the doors are aligned and level, both top and bottom.  In cases where the container frame is racked and the door gear will not operate correctly.)

2. Lockbox

The lock box is a steel box welded to the right hand door which overlaps a staple welded to the left hand door. A padlock, normally type CISA type 285 66 can then be attached inside the lock box through the staple and is then protected from direct attack, hindering attempts to gain entry to the container.

3. Lockrods, cam keepers, handles

Each door is fitted with 2-4 vertical lock rods to enable opening, closing and locking of the doors.

At the end of each lock rod (top and bottom) is a cam welded in place which engages with knuckles, also known as cam keepers.

The action of engaging the cams to the keepers forms an anti-racking function.

(In certain cases, often unfortunately too many, contents of the shipping container may have shifted, or containers even dropped, causing shipping container doors and lockrods to warp)

The door handle rotates the lockbar to initiates the door opening process by forcing the cams out of their keepers.  Each door handle has a door locking handle retainer that slides over the door handle when in locked position.

4. Rubber gaskets

Rubber gaskets are fitted to the container doors during the manufacturing process and prevent water ingress.

(Door gaskets are designed to present two or more fins against the structure or adjacent door. These are generally flexible but when the gasket is damaged, they may become hard or blocked thus jamming the door closed, or preventing it being closed.)

5. ISO markings and CSC plate

ISO markings and a consolidated data plate allow worldwide intermodal transport when left in place and updated as necessary.

6. Hinge pins

Of course for a door to work, you need hinges.

(In certain cases when doors are difficult to open, hinge pins and blade are seized due to corrosion.)

Choosing the Right Company for Buying a Shipping Container

When doing research in finding the right Shipping Container, follow some of these tips:

Research Online

Choose which companies have a good track record of excellence and reputation.  Read reviews and what other customers have to say.

Check for Availability

If you are shipping from various locations, check for availability if containers can be delivered to your required areas.

Check for Best Pricing

If money matters, you can find used container resellers online that might be able to offer half the price on used containers.

Check for Good Customer Service

If you plan to order often, you might want to check for good customer service.  Ask potential container companies a question through email or their online customer service. See how fast they respond.

Check for Warranty

Check with companies to see if they offer any warranties or buy back or trade in plans.

There are millions of Shipping Containers in use around the world, and a lucky few get a second life as repurposed shipping container structures. While they look a bit plain and boxy to the untrained eye, shipping containers play a critical role in our lives, whether embarking on ocean crossings to deliver the goods we use every day or venturing into a second life as a container structure.

Here are Some Fascinating Facts about Shipping Containers

• Shipping Containers can be safely stacked nine-high.
• Well-maintained Shipping Containers hold 759, of their original value for 25+ years.
• There are over 37 million Shipping Containers in use around the world.
• A Shipping Container floor can hold up 55,000 lb. of goods without warping.
• Shipping Container flooring is made of 1-1/8” marine grade plywood.
• Most Shipping Containers are 20 feet or 40-feet long.
• Shipping Containers are made of 16-gauge corten steel.
• Common container modifications include: personnel doors, windows flooring, shelving, work stations, insulation, climate control & even restrooms.

Fun Ways to Use Shipping Containers

Shipping Containers are not just used for cargo these days. There are many innovative and imaginative uses you may like to consider.

Here are few ideas of how shipping containers have been used for modern, cost effective buildings.

Homes

The trend to build cost-effective homes from recycled shipping containers started in USA and has reached Australia.

Art Galleries

Architect, Tomokaza Hayakawa designed an art gallery in Japan using two shipping containers stacked on each other.

Drive-Thru Coffee

Starbucks in Washington have used four old shipping containers to create an architect designed drive-thru store.

Cafes

A cafe in Footscray (Melbourne) called Rudimentary has been built using three 40-foot shipping containers.

Polar Stations

India has built a Polar Station in Antarctica using 134 shipping containers. They cover three floors and are well insulated for the weather conditions.

A well-maintained Shipping Container can hold 75% of their original value for 25+ years. Every day, container ships transport goods all over the world on the international seas.

Shipping Container Opening and Closing Tool

Shipping containers often take a beating, traveling around the world, being exposed to freezing conditions and rust due to seawater or when the frost has melted.

During the cold season, and in freezing parts of the world, our shipping container tool can benefit the opening and closing of frozen shipping container doors and hard to open or rusted containers.

Injuries often occur as a result of personnel trying to open and close difficult container doors, and often are the result of inappropriate techniques being used to open them.

To aid in opening and closing shipping container doors, we introduce OPNBar.

A Shipping Container (also known as Intermodal Container, ISO Container,Railroad Container, and certain Truck Trailers)  is a large standardized shipping container, designed and built for intermodal freight transport.   Shipping Containers can be used across different modes of transport.  They can go from ship to rail to truck, without unloading and reloading their cargo.

The metal doors on the shipping containers on these containers are standardized.  Shipping Containers use the same type and style of doors and locking bars, which our tool can be used.

Lengths are as follows: 20′, 40′, 45′, 48′, 50′, 53′. All these containers are globally used to transport cargo. The 53′ length is now, the new the standard length.

Here are some likely reasons a Shipping Container door will not open or close.  Visit https://www.shippingcontainertool.com/what-is-a-shipping-container/ to find out how to overcome some of these issues.

Doors and lockrods may warp or container frame is racked so that the door gear will not operate correctly. This may be caused by cargo shifting during transit. Look at the container to make sure that the doors are aligned and level, both top and bottom.

The hinge pins and blade are seized due to corrosion.

The door gasket has been damaged and is preventing opening. Door gaskets are designed to present two or more fins against the structure or adjacent door. These are generally flexible but when the gasket is damaged, they may become hard or blocked thus jamming the door closed, or preventing it being closed.

Water has become trapped between frozen shipping container doors, particularly relevant to refrigerated cargoes, or containers with moisture releasing cargoes in cold weather.

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