QINGDAO BOXWELL CONTAINER CO. IS THE OFFICAL MANUFACTURING PARTNER OF BOXWELL LLC.
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20ft
Qingdao Boxwell
The 20ft DNV-ST-E271 Certified Offshore Container is designed for the transportation, lifting and storage of cargo and equipment in demanding offshore and marine environments.
This model belongs to Offshore Containers → Offshore Cargo Containers and is suitable for offshore oil & gas, marine, offshore wind and energy projects.
Unlike a conventional ISO dry cargo container, this product incorporates structural and lifting features specifically intended for offshore handling.
The container is manufactured in accordance with DNV-ST-E271, formerly referenced as DNV 2.7-1.
DNV-ST-E271 provides requirements and guidance for approval and certification of offshore containers and associated lifting sets, including requirements concerning manufacturing, testing, marking and periodic inspection.
The external dimensions are:
6058 × 2438 × 2591 mm.
The fully enclosed structure and double swing doors provide a practical configuration for offshore cargo including:
● Tools
● Spare parts
● Maintenance equipment
● General project cargo
● Suitable offshore equipment
The weight specifications are:
● Payload: 14,850 kg
● Tare Weight: 3,650 kg
Actual loading should remain within the certified limits and follow the approved cargo distribution, center-of-gravity and securing requirements for the individual unit.
The container incorporates:
● Heavy-duty steel frame
● Reinforced corner posts
● Robust base frame
● Steel floor
● Four certified lifting pad eyes
● Forklift pockets
These features support offshore lifting and cargo transportation under the approved operating and certification conditions.
The container includes four certified lifting pad eyes for offshore crane handling.
The lifting points form part of the certified offshore structure and should be used with the approved lifting arrangement and project lifting procedure.
A compatible sling set is available as an optional configuration.
Forklift pockets are available, providing an additional handling option for appropriate shore-base, yard and logistics operations.
The surface-protection system consists of:
● Sa2.5 blast cleaning
● Zinc-rich epoxy primer
● Epoxy intermediate coat
● Polyurethane top coat
The container is designed for offshore environments involving salt spray, corrosion and demanding weather conditions.
No fixed maintenance interval or service-life figure should be stated unless supported by the approved coating specification and operating conditions.
The 20ft Offshore Container can be customized with:
● Shelving
● Lighting
● Electrical systems
● Ventilation
● Insulation
● HVAC
● Customized internal layouts
● Various door configurations
These options allow the base offshore cargo container to be adapted for different project requirements.
Where the container is converted into a workshop, control room or other service module, the required electrical, fire, ventilation or hazardous-area standards should be separately reviewed for that application.
The 20ft Offshore Container is designed for offshore logistics where cargo or equipment must be transported between shore facilities, vessels and offshore installations using a dedicated certified lifting structure.
Offshore oil and gas is one of the primary markets for this container.
Typical suitable cargo can include:
● Maintenance tools
● Spare parts
● Operational equipment
● Consumables
● General project cargo
The product is suitable for transporting cargo between onshore facilities, supply vessels and offshore platforms.
The enclosed steel body provides protected cargo space while the certified pad-eye arrangement supports offshore crane handling.
Drilling sites are among the intended operating environments.
The container can provide a dedicated logistics unit for tools, parts and equipment required during drilling and maintenance activities.
Offshore containers are commonly used for transporting equipment between ships and fixed or floating offshore facilities.
Offshore wind and renewable-energy projects are suitable applications for offshore container solutions.
The container can be configured for appropriate tools, components, spare parts and maintenance equipment used in wind-farm installation and service projects.
Marine and broader energy-sector projects are also included in the application range.
Project-specific internal layouts can be developed when standard empty cargo space does not meet the operational requirement.
In addition to transportation, the container can be used for equipment storage.
Shelving, insulation, lighting and ventilation can be selected where appropriate for the equipment being stored.
The basic offshore container can be adapted for:
● Workshops
● Control rooms
● Specialized offshore applications
These should be treated as custom-engineered configurations, not as standard features of the base cargo container.
Service configurations such as workshops, laboratories and control modules may require additional safety requirements where relevant.
Specification | Details |
Product Name | 20ft DNV-ST-E271 Certified Offshore Container |
Model | 20ft |
Brand | Qingdao Boxwell |
Product Category | Offshore Containers → Offshore Cargo Containers |
Standard | DNV-ST-E271 |
External Length | 6058 mm |
External Width | 2438 mm |
External Height | 2591 mm |
Material | SPA-H Steel |
Design Temperature | -20°C |
Lower Design Temperature | Available according to project requirements |
Surface Preparation | Sa2.5 Blast Cleaning |
Primer | Zinc-Rich Epoxy |
Intermediate Coat | Epoxy |
Top Coat | Polyurethane |
Floor | Steel |
Door Type | Double Swing Door |
Forklift Pocket | Available |
Lifting Pad Eyes | Four Certified Pad Eyes |
Sling Set | Optional |
CSC Plate | Optional |
Color | Customized RAL Color |
Payload | 14,850 kg |
Tare Weight | 3,650 kg |
Internal Options | Shelving / Lighting / Electrical Systems / Ventilation / Insulation / HVAC / Customized Layouts |
Depending on project requirements, the following documentation can be provided:
DNV-ST-E271 Certification
CSC Plate (Optional)
Third-Party Inspection Certificate
Welding Records
NDT Reports
Load Test Reports
Paint Inspection Reports
Dimensional Inspection Reports
User Manual
Packing List
Every offshore container passes through a complete manufacturing process under strict quality control.
We maintain Offshore Cargo Containers as a dedicated product category within our broader offshore range. The current 20ft model belongs to this category.
Our offshore range also includes:
● Half Height Containers
● Mini Containers
● Offshore Baskets
● Bottle Racks
● Waste Skips
● Tool Boxes
● Workshops
● Offshore Frames
Our core engineering and R&D team has more than 20 years of industry experience in offshore containers, special containers and customized equipment solutions.
The 20+ years refers to the experience of our professional team, not to the age of our company.
We support:
● Customer drawing-based production
● Manufacturing from technical specifications
● Non-standard offshore-container development
● Project-specific structural design
● Customized internal layouts
● Specialized equipment integration
This is directly relevant to the 20ft Offshore Container because the current product page supports shelving, lighting, electrical systems, ventilation, insulation, HVAC and other customized configurations.
Our products can be designed and manufactured according to internationally recognized requirements including:
● DNV 2.7-1
● EN 12079
● CSC
● ISO
● Other project-specific standards
For this particular product, the verified product-specific standard is DNV-ST-E271.
We were founded in May 2020 in Jiaozhou, Qingdao.
Our factory covers approximately 60,000 m², including 32,000 m² of workshop space, with more than 200 workers.
Our quality-management system covers:
● Raw-material inspection
● Production-process monitoring
● Final product testing
We also invest in modern testing equipment to support product-performance verification.
We cooperate with independent inspection agencies and classification societies according to project and certification requirements.
This allows inspection arrangements to be developed around the actual ordered product rather than relying on generic certification claims.
Our service scope includes:
● Pre-sales technical consultation
● Engineering and solution design
● Production monitoring
● Quality control
● Third-party inspection support
● Logistics and shipment coordination
● After-sales technical support
It is an enclosed offshore cargo container designed for the lifting, transportation and storage of tools, spare parts, maintenance equipment and general cargo in offshore environments.
This model belongs to Offshore Cargo Containers and is manufactured according to DNV-ST-E271.
The specifications are:
● External Dimensions: 6058 × 2438 × 2591 mm
● Payload: 14,850 kg
● Tare Weight: 3,650 kg
Final cargo loading should comply with the approved structural, weight-distribution and certification requirements.
The standard configuration uses Double Swing Doors.
Various door configurations can also be provided for customized projects.
The product includes:
● Four certified lifting pad eyes
● Forklift pockets
● Optional sling set
The lifting system should be used according to the approved DNV-ST-E271 certification documentation and project lifting procedure.
Yes. This model can be customized with:
● Shelves
● Lighting
● Electrical systems
● Ventilation
● Insulation
● HVAC
● Customized internal layouts
The exact specification should be agreed before production.
The platform can be adapted for workshops, control rooms and other specialized offshore applications.
However, these are custom-engineered service configurations. Additional electrical, fire, ventilation or hazardous-area requirements may apply depending on the intended use, so the base DNV-ST-E271 cargo-container specification alone should not be treated as covering every installed system.
The design temperature is -20°C.
Lower design temperatures are available according to project requirements, but one universal lower limit is not specified.
CSC Plate: Optional.
CSC is therefore not automatically included on every unit. If CSC approval is required, it should be defined as part of the individual project's engineering and certification scope.
DNV 2.7-1 is retained as a legacy reference, while the applicable product standard is DNV-ST-E271.
For current technical product copy, DNV-ST-E271 Certified Offshore Container is therefore the preferred wording, while DNV 2.7-1 can remain as a legacy reference where useful.
For an accurate technical proposal, it is recommended to provide:
● Required quantity
● Cargo or equipment description
● Cargo dimensions and weight
● Required payload
● Door configuration
● Internal shelving requirements
● Lighting requirements
● Electrical requirements
● Ventilation requirements
● Insulation requirements
● HVAC requirements
● Required design temperature
● Sling-set requirement
● CSC requirement, if applicable
● Other certification requirements
● RAL color
● Identification requirements
● Operating environment
● Delivery destination
Our engineering team can then develop the final 20ft Offshore Container configuration according to the actual cargo, operational and certification requirements.
