Product Overview & Specifications

Engineered in strict compliance with ISO 668, ISO 1496-1, and ISO 6346 standards, this 40ft High Cube (40'HC) dry van container provides an internal clearance height of 2,698 mm (8ft 10in)-offering an additional 30 cm (12 inches) of vertical loading space compared to standard equipment. Each production batch is certified for international maritime, rail, and road intermodal freight operations.

Technical Data Sheet

Parameter	Specification	Standard / Tolerance
External Length	12,192 mm (40' 0")	ISO 668
External Width	2,438 mm (8' 0")	ISO 668
External Height	2,896 mm (9' 6")	High Cube Standard
Internal Length	12,032 mm (39' 5")	ISO 1496-1
Internal Width	2,352 mm (7' 8")	ISO 1496-1
Internal Height	2,698 mm (8' 10")	High Cube Clearance
Door Opening Width	2,340 mm (7' 8")	Rear Frame Clear Opening
Door Opening Height	2,585 mm (8' 5")	Rear Frame Clear Opening
Cubic Capacity	76.4 m3 (2,698 cu.ft)	Usable Internal Volume
Max Gross Weight (Rating)	32,500 kg (71,650 lbs)	CSC / ISO Limit
Tare Weight (Empty)	~3,900 kg	Varies by floor specification
Max Payload Capacity	~28,600 kg	Rating Minus Tare

Material & Structural Engineering

Structural performance under multi-tier stacking and aggressive marine environments is determined by material specification and joint welding.

Steel Framework: Main corner posts, roof bows, and side panels are fabricated from SPA-H Corten-A weathering steel, delivering a minimum yield strength of 480 MPa and atmospheric corrosion resistance up to 4 times that of standard carbon structural steel.

Flooring Assembly: Fitted with 28 mm marine-grade Apitong hardwood or structural bamboo composite panels, secured via countersunk M8 bolts to cross-members, rated for a forklift axle load capacity of 7,250 kg.

Corner Castings: Drop-forged steel corner castings conforming to ISO 1161, certified for a 9-high stacking load configuration at 32.5 tonnes per unit.

Sealing & Locking: EPDM rubber marine gaskets combined with galvanized double-locking cam-and-keeper gear sets on both doors, verified for complete watertight integrity.

Manufacturing Process & Quality Control

Production follows strict Quality Management Systems (ISO 9001) under classification society oversight.

Surface Treatment:

Raw steel coils and plates pass through an automated inline shot-blasting facility to achieve Sa 2.5 surface cleanliness, removing mill scale prior to forming.

Welding Standards:

Structural joints are welded by AWS/EN certified operators using automated flux-cored arc welding (FCAW) to ensure uniform penetration depth.

Corrosion Protection System:
Shop Primer: Zinc-rich primer applied post-blasting.

Base Coat: 40-micron epoxy anti-corrosive primer.

Intermediate Coat: 40-micron build coat.

Top Coat: 40-micron acrylic polyurethane finish (>= 120 microns total dry film thickness).

Factory Testing Protocols:
Watertightness Test: 100% of units undergo high-pressure nozzle testing (water jet pressure >= 1 bar at 1.5 meters distance) to detect seam defects.

Dimensional & Squareness Control: Measured using laser alignment systems to maintain a diagonal tolerance within +/- 3 mm.

CSC Inspection: Verified and certified by independent classification societies (ABS, BV, LR, DNV, or CCS).

Application Suitability Assessment

Selecting the correct equipment configuration prevents structural failure, cargo damage, and regulatory rejections.

Total cargo volume ranges between 68 and 76 cubic meters.

Palletized cargo requires double-stacking or exceeds standard 2.39m internal height clearance.

Target application requires interior wall/ceiling insulation (such as container office conversions), where vertical clearance reduction must be compensated.

Supplier Evaluation Matrix for B2B Buyers

Evaluation Dimension	Standard Indicator to Verify	Risk of Sub-Standard Alternatives
Material Traceability	Mill Test Certificates (MTC) for SPA-H Corten-A steel plates.	Rapid corrosion thinning and structural degradation during transit.
Classification Society Approval	Valid plant authorization and individual unit CSC plate certification (ABS, BV, LR, DNV).	Customs clearance blockages, port authority lifting bans, transit liability.
Welding Quality Control	NDT (Non-Destructive Testing) records, welder qualification standards (AWS D1.1 / EN ISO 9606).	Structural failure or weld cracking under heavy crane hoisting loads.
Coating System Compliance	Dry Film Thickness (DFT) measurements >= 120 um; salt fog test verification (>= 1,000 hours).	Paint blistering, peeling, and rust breakthrough in marine environments.

FAQ

Q: What is the exact payload difference between a 40ft Standard and a 40ft High Cube container?

A: Both units share an identical maximum gross weight rating (typically 32,500 kg per ISO limits). However, the additional 30 cm height of a High Cube container increases its tare (empty) weight by roughly 150 kg to 200 kg depending on floor reinforcement and corner post design. Consequently, the net payload capacity of a 40ft High Cube is lower than a 40ft Standard container by that exact weight differential.

Q: Are these containers certified for one-way shipping (SOC - Shipper Owned Container)?

A: Yes. All newly manufactured units are delivered with an official CSC safety approval plate and a classification society certificate, making them fully compliant for One-Way lease operations, international freight forwarding, or direct site conversion as Shipper Owned Containers.

Q: What flooring material is installed as standard, and are alternative flooring types available?

A: Standard production utilizes 28 mm marine-grade Apitong hardwood or structural bamboo composite panels treated with anti-fungal and moisture-resistant resins. For specialized industrial operations involving heavy forklift traffic or chemical exposure, steel checker plates or customized bamboo-hardwood hybrids can be specified during batch planning.

Q: How is interior condensation managed during long maritime transits?

A: Standard dry vans are equipped with labyrinth-type plastic or metal ventilation cowles (typically 2 to 4 vents per unit) designed to maintain regulated air exchange and mitigate moisture accumulation. For sensitive cargo or modified interior environments, additional desiccant anchor points or customized insulation lining can be integrated upon request.