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Offshore container modules are primarily used to store and transport various materials and equipment during the operation of offshore platforms, including food and living materials, fuel chemicals such as oil and gas, tools, and spare parts for offshore operations, etc. ​It can also be used for temporary offices, workshops and living quarters to provide basic working and living facilities for offshore workers.

The offshore container module is a container specially designed for offshore platforms, which has the characteristics of anti-wave, windproof, anti-corrosion, and durable. The containers are typically made of high-strength steel and are detachable and reconfigurable to suit different transportation needs.

Offshore containers are highly specialized, and each type of container has its specific purpose. According to different uses, offshore containers can be divided into the following 3 categories:

• Offshore cargo container: general cargo container, open top basket container, tank container for shipping liquid cargo, dry bulk container, gas cylinder cluster container, special containers for equipment, etc.
• Offshore service containers: mainly used to meet specific work environment requirements and complete specific tasks, they are often used as temporary facilities such as laboratories, workshops, generator rooms and consoles.
• Offshore bucket garbage container: mainly used for carrying and storing waste.

 
TLS specializes in providing customized offshore container modules that comply with international standards DNV2.7-1/ IEC60079-13. We always follow the principles of safety, reliability, and efficiency to escort your offshore operations. 

TLS is a global leader in the design and manufacture of specialized containers for a range of industries. The company's mission is to provide high-quality, innovative solutions that meet the needs of clients around the world. With a focus on safety, efficiency, and sustainability, TLS has become a trusted supplier of pressurized containers, TR shelters, and BESS containers.

Pressurized containers are a key product for TLS, providing a safe and secure environment for equipment and personnel in hazardous environments. These containers are designed to withstand high pressures, ensuring that their contents remain intact in a range of conditions. TLS pressurized containers are commonly used in the oil and gas industry, chemical processing plants, and other industries where hazardous materials are present.

TR shelters are another important product from TLS, providing a temporary refuge for personnel in the event of an emergency. These shelters are designed to withstand the impact of blast events, providing a protective environment for personnel to wait until it is safe to evacuate the area. TLS TR shelters are available in a range of sizes to meet the needs of clients in various industries, from offshore oil rigs to chemical processing plants.

BESS (Battery Energy Storage System) containers are a newer addition to the TLS product lineup, offering a sustainable energy storage solution for clients in a range of industries. These containers are designed to store large amounts of energy in batteries, which can be used to power a range of equipment and applications. BESS containers are becoming increasingly popular in renewable energy industries, such as wind and solar power, where they provide a reliable and efficient way to store energy.

All TLS products are designed with safety and efficiency in mind, using the latest technologies and materials to ensure high-quality and reliable solutions. The company works closely with clients to understand their needs and customize products to meet their specific requirements. With a focus on sustainability, TLS products are also designed to minimize their environmental impact, using energy-efficient technologies and materials wherever possible.

In addition to its product lineup, TLS also provides a range of services to support its clients, including installation, maintenance, and repair. The company's global network of service centers ensures that clients can access support and assistance wherever they are in the world.

Overall, TLS is a trusted supplier of specialized containers, providing high-quality, innovative solutions to clients in a range of industries. With a focus on safety, efficiency, and sustainability, the company is well-positioned to meet the evolving needs of clients around the world.

Main structure:
Mainly divided into two categories
1. Important and non-redundant primary structures, which are the basic components that transfer the resultant load of the cargo to the crane hook or forklift (i.e. form the transfer path from the payload to the sling load), include at least: Top and bottom side beams, top and bottom end beams, corner posts, lifting lugs, fork grooves
2. Non-basic main structure. Examples include floors and other components with major functions other than those described for basic components. Baffles, stacking corners and end plates on hollow sections fall into this category. In addition non-essential primary structures also include protective framing members.

Secondary structure
The non-loaded parts that do not need to be considered in design calculations are called secondary structures, including
1. Door, wall and roof panels, non-slip cover
2. Reinforced plate and corrugated plate
3. Parts used only to protect tank structure
4. Internal fixed points

​TLS is an international supplier that can customize onshore | offshore special containerised solutions,Any requirements, please contact us directly:
E-mail: sales@tls-containers.com
Hotline: +65-65637288; +65-31386967

DNV stands for Det Norske Veritas, an independent and self-governing foundation dedicated to the protection of human life, the property and the environment both onshore and offshore. DNV Shipping Containers or Offshore Containers are certified containers for the oil and gas industry. This portable unit can be used many times, thus increasing its worth and viability.
 
When transporting large components to a drilling rig or FPSO (or storing products on site), you require containers that can endure harsh weather and movement. Due to certain hazards that may exist in the oil industry, DNV containers must comply with safety regulations in order to be certified for application on oil rigs, on oil tankers and in the environment.
 
DNV Shipping containers are divided into three main types:
Offshore freight containers：Suitable for carrying large loads and cargoes.

Due to the harsh environment at sea and the frequent lifting of offshore containers, there are strict requirements on the lifting lugs of offshore containers.

1. The design of lifting lugs should not exceed the limit formed by the outer surface of the frame, except the limit of the top.
2.  Lifting lugs are to be reasonably designed so that the slings connected to them are not entangled with containers or cargo.
3. The design of the lugs is to allow free movement of the shackles and slings without damaging the lugs.
4. In order to avoid lateral bending moment, in the hoisting state, the eye plate of the lifting lug should be coplanar with the vertical plane where the corresponding limb cable is located, and the maximum manufacturing tolerance is ±2.5.
5. When there are four lifting lugs, the relative positions between the lifting lugs should be arranged as a rectangle. The length difference between the two diagonals of the rectangle shall not exceed 0.2% of the nominal diagonal length or 5 mm, whichever is greater.
6. The design of lifting lugs should be matched with shackles, and one kind of lifting lugs should not be matched with shackles of various specifications. The clearance between the shackle pin and the lug hole should not exceed 6% of the diameter of the shackle pin.
7. The thickness of the lug hole shall not be less than 75% of the width of the shackle body.
8. If the lifting force is transmitted through the thickness direction (Z direction) of the plate, the plate used should have the corresponding mechanical properties in the Z direction. When plates with a thickness less than 15mm are used, an engineering justification for the material used shall be based on mechanical testing, ultrasonic testing, or review of chemical and mechanical properties.
9. Lifting lugs are to be connected to the frame by full penetration welding. It is recommended that the lifting lugs be connected to the main structural frame beams by inserting the lifting lugs into the slots of the main structural beams.

DET NORSKE VERITAS (DNV) is an autonomous and independent foundation whose goal is to protect life, property, and the environment at sea and on land. DNV undertakes classification, certification and other verification and consulting services related to the quality of ships, offshore equipment and facilities, and onshore industries worldwide, and conducts research related to these functions.
The DNV 2.7-1 certified offshore container is specifically designed for dynamic hoisting with eye pad devices and DNV certified slings fitted with shackles.
They are checked during the design phase, material procurement, production, and final loading and NDE testing. ​Not only are prototypes tested, but a specific number of units are randomly selected from each batch for testing at a rate five times the rate of ISO standard container testing.
The containers have a solid steel structure, including floors. They weigh almost twice as much as an ISO container of the same size, which is critical to their ability to maintain an upright position while being transported in rough seas. They must be equipped with DNV approved slings, stronger steel, stricter production specifications and have all the test documentation to prove their reliability in harsh offshore conditions.
 
Classification societies certify containers

• 1. Design evaluation: details of materials, cargo handling, container lifting and cargo tightening inside the cantainer.
• 2. Manufacturing process: certified inspectors authenticate and test raw materials to confirm that welder qualification, welding process and non-destructive carbon damage work meet the requirements
• 3. Test: Four-point lift, two-point lift, tilt test and drop test

Offshore containers should be inspected regularly every year. Regular inspections should be performed on the inside and outside of the container when it is empty. TLS has prepared tips for you to check including:

1. Inspection of signs and nameplates.
2.  Weld inspection of main structural members to confirm that there are no visible defects.
3.  Inspection of lifting lugs and lashing points for deformation, mechanical damage, or other dangerous defects.
4.  Inspect all structures for corrosion, deformation, mechanical damage, or other dangerous defects.
5. Check the condition of the container floor, including the bottom drainage facilities and drainage holes.
6.  Check for corrosion and mechanical damage inside the fork pockets (where applicable).
7. Check the door, frame, seal, hinge, door lock, etc., and confirm the opening and closing of the door.

To facilitate the loading and unloading of the cargo, the bottom of TLS offshore containers is usually designed with fork pockets, which are required as follows:
1. If provided, the fork pockets shall be arranged in the bottom structure with the top closed to penetrate the bottom and prevent the offshore container from overturning from the fork tine.
2. The net opening size of the fork pocket of the offshore container shall not be less than 200mm×90mm.
3. Considering the length, height, width, and rated weight of the offshore container, the position of the fork pocket should ensure the stability of the container when it is transported by the forklift. The fork pockets should be as far apart as possible, generally not less than 900 mm from the center, but not more than 2,050 mm.
4. The bottom plate of the fork pockets can be closed completely, but openings are recommended for maintenance and to reduce the risk of loose items being left in the fork pockets, thereby preventing items from falling during the lifting process. Where openings are provided, the size and position of the opening should be set to avoid jamming or being damaged by the tines The opening at the bottom of the fork pockets are not allowed at the bottom side rails, and the distance between the opening and the bottom side rails should not be less than 200mm.
5. The weakening of vertical shear strength of bottom side rails by fork pockets opening should be taken into account when calculating the bottom side rails strength. In general, a reinforcement plate should be attached to the top of the bottom side rail. The reinforcement plate should be in the same plane as the bottom side rails web. The reinforcement plate should be extended by at least 100mm at both ends. At this point, the weld between the reinforcement plate and the bottom side rail should be completely melted through.

Visual inspection and non-destructive testing are commonly used to inspect container welds. Magnetic particle inspection is one of the types of non-destructive testing. Magnetic particle inspection is a method of observing defects using magnetic powders as a display medium. After the ferromagnetic material workpiece is magnetized, as the existence of discontinuity, the magnetic field lines on the surface and near the surface of the workpiece are locally distorted to generate a leakage magnetic field, which adsorbs the magnetic powder applied on the surface of the workpiece and forms a visible magnetic field under suitable illumination，and the location, size, shape, and severity of the discontinuities are shown.

TLS normally uses black magnetic paste for flaw detection. This method has high sensitivity to detect small defects on the surface of the workpiece. The steps are:

1. Pour and spray the magnetic levitation over the workpiece to be examined, and the flow rate of the levitation should be slow to prevent the magnetic imprints from being washed away.
2. Use a fixed device. It is easy to operate and has high efficiency.
3. Demagnetization. Reduce residual magnetism in the inspected workpiece so that it can be processed or used normally.
4. After magnetic particle inspection, residual magnetic levitation on the surface is removed and dried.Our QAs are all certified through strict examinations.

TLS attaches great importance to the quality of products and will only deliver products to customers after confirming that the products meet the quality inspection standards.
​Any requirements about specialized shipping containers, please feel free to contact us.

Containers are no longer a traditional transport tool that can only be used to carry goods. More and more container types are known to us. In order to meet the needs of different container types, the correct selection of doors has also become an important step in the design process.
 
Before choosing, please answer the following questions：
What does this container need to be used for?
Do large-sized items need to be placed in the container?
Are containers used as offices or homes?
Do we need to go inside the container frequently?
 
5 Basic Types of Container Doors for Your Reference
1. Cargo door
"Original" doors for shipping containers. Usually installed at the end of the container. These heavy duty doors are weatherproof and very secure. They open outward, and the secure cam and locking system are robustly designed to deter theft and reduce the risk of damage from inclement weather and other environmental threats.
Applicable environment：Large objects need to be easily placed in the container
Features: Affordable, no modification or installation required.

2. Personnel door
Use in case of storing smaller items or as a laboratory, office, house etc. They are usually installed on the end face of the container and have good sealing performance. According to the different use environments, there are doors that meet the level of B30 and A60.
Applicable environment: It is frequently used for easy entry and exit of people, (movable office building, portable office station, laboratory shipping container)
Features: Easy to use, various styles and standards to choose from

The design of any container building should be tailored to the specific needs of each project.
Feel free to contact us ,we customize special containers as you need. ​