What types of shipping containers does CIMIC supply?

We manufacture and export reefer (refrigerated) containers, dry cargo containers, offshore containers, insulated containers, tank containers, modular containers and special containers such as side-open-door, roll-up-door and open-top units. Used reefer and used dry containers are also available.

Can you build customized OEM/ODM containers?

Yes. We accept tailor-made OEM and ODM orders. Our engineers review your cargo, route and operating environment, then confirm a drawing covering size, door configuration, insulation, refrigeration unit and finish before production begins.

Which certifications and standards do your containers meet?

CIMIC holds a BV (Bureau Veritas) shipping certificate and an ISO quality certificate. Standard units follow ISO container dimensions, and our offshore dry cargo containers are manufactured in line with DNV certification requirements for offshore service.

Which refrigeration unit brands are available for reefer containers?

Our reefer range includes models fitted with Thermo King, Daikin and Carrier refrigeration units, offered in 10ft, 20ft, 20ft high-cube, 40ft and 40ft high-cube sizes depending on the model.

Where are your used containers located?

Our second-hand containers are stored at various ports in China. We share condition details and photos of the specific units on request so you can approve them before shipment.

Where is CIMIC located and which markets do you serve?

We operate from Tianjin and Suzhou, China, about 100 km from the seaport. Our containers are exported worldwide, with Africa, Europe and the Americas as our main markets.

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Industrial White Paper 2025/2026

Engineering Principles & Evolution of Tarpaulin Soft Open Top Fleets

Over-dimensional freight and dense project cargo present physical handling barriers that standard closed dry boxes cannot accommodate. Soft open-top containers resolve crane clearance bottlenecks with detachable high-strength roof headers and structural PVC tarpaulins.

Mechanical Kinematics & Roof Physics

Unlike hard open tops equipped with heavy steel plates requiring dedicated terminal gantry support, the soft open top container uses flexible, high-tensile 650g/m² to 900g/m² polyvinyl chloride (PVC) tarpaulins. Supported by arched removable roof bows (cross-members), the canopy maintains aerodynamic stability during high-speed rail transit while shedding bulk rainwater and preventing ponding weight damage.

TIR International Customs Sealing

Modern customs regulations (Transports Internationaux Routiers - TIR) require continuous, tamper-evident perimeter sealing. Tarpaulin containers utilize vulcanized hems lined with brass eyelets through which a continuous steel core cord is routed. Once fastened via terminal padlock or customs bolt, physical roof breach without cord destruction becomes impossible, guaranteeing frictionless border clearance.

Dynamic Swing-Out Header Architecture

Loading oversized turbines, industrial heat exchangers, or raw stone blocks through the door opening presents overhead collision risks. Our structural design incorporates a swivel-action rear door header that unlocks and rotates horizontally by 180 degrees. This permits zero-interference overhead overhead crane access across the longitudinal cargo bed, eliminating crane hook snags.

SPA-H

High-Yield Corten Steel Shell

34,000 KG

Maximum Certified Gross Weight (MGW)

930 g/m²

UV & Hydrophobic Tarpaulin Density

ISO/CSC

Certified for Multimodal Rail & Sea

Macro Logistics Infrastructure

Global Procurement Demand & Industrial Realities

The shift toward clean energy systems, large-scale mining operations, and cross-border structural infrastructure has driven worldwide demand for soft-top open containers to record levels.

Mining & Bulk Raw Materials

In Western Australia, Chile, and Southern Africa, soft open-top containers streamline dense ore handling. Ore chunks and mineral sands are loaded through open top hoppers in seconds, bypassing side doors. Moisture-sealed tarpaulin covers shield water-reactive concentrates from high atmospheric humidity during extended multi-port ocean voyages.

Renewable Energy Infrastructure

Wind turbine nacelles, transformer assemblies, and long solar plant mounting pillars routinely exceed standard ISO box heights. The 40ft High Cube Soft Open Top container accommodates out-of-gauge (OOG) profiles without requiring flat racks, reducing marine stowage surcharges by maintaining container stack integrity.

Eurasian Trans-Continental Rail

Along the Belt & Road Rail Corridors crossing China, Kazakhstan, and Poland, weather extremes range from -40°C in Siberia to +45°C in the Gobi desert. High-grade synthetic poly-ester coated tarpaulins prevent thermal cracking and maintain elasticity without tearing under sustained high-speed crosswinds.

Industry 4.0 Smart Manufacturing

China Factory 4.0: Supply Chain Resilience & Cost Edge

Operating from Tianjin and Suzhou—within 100 kilometers of deep-water berths—our digital fabrication lines merge structural metallurgy with robotic precision to outpace traditional shipbuilders.

Robotic Arc Seam Welding

Automated 6-axis welding stations ensure continuous, pore-free joining of SPA-H atmospheric corrosion-resistant steel, increasing corner post shear load ratings to withstand extreme dynamic marine racking.

Zinc-Rich Surface Preparation

Shot-blasting to Swedish Standard SA 2.5 removes all mill scale, followed by three-layer epoxy primer and polyurethane coating systems certified for C5-M extreme marine corrosive zones.

MES Supply Traceability

Our smart Manufacturing Execution System (MES) maps every steel batch, tarpaulin roll, floor screw, and gasket back to mill test certificates for transparent compliance records.

Direct Berth Dispatch

Factory yards sit minutes from primary vessel feeder corridors, avoiding costly inland staging and lowering handling expenses for multi-unit fleet orders.

Engineering Specifications

Dimensional Matrix: Standard vs. High-Cube Soft Open Tops

Evaluate detailed load geometries, internal clearance envelopes, and payload metrics to optimize container utilization across ocean and rail corridors.

Dimensional & Structural Attribute	20ft Standard Soft Open Top	40ft Standard Soft Open Top	40ft High Cube Soft Open Top
External Dimensions (L × W × H)	6,058 × 2,438 × 2,591 mm	12,192 × 2,438 × 2,591 mm	12,192 × 2,438 × 2,896 mm
Internal Clear Dimensions (L × W × H)	5,898 × 2,352 × 2,348 mm	12,032 × 2,352 × 2,348 mm	12,032 × 2,352 × 2,655 mm
Roof Opening Envelopes (L × W)	5,438 × 2,228 mm	11,572 × 2,228 mm	11,572 × 2,228 mm
Rear Door Opening Width × Height	2,340 × 2,280 mm	2,340 × 2,280 mm	2,340 × 2,585 mm
Tare Weight (Unladen)	2,350 kg (5,180 lbs)	3,850 kg (8,487 lbs)	4,150 kg (9,150 lbs)
Maximum Certified Payload	28,130 kg (62,015 lbs)	26,630 kg (58,709 lbs)	29,850 kg (65,807 lbs)
Internal Volumetric Capacity	32.5 m³ (1,148 cu.ft)	66.4 m³ (2,345 cu.ft)	75.1 m³ (2,652 cu.ft)
Roof Bow Support Members	5 Detachable Arched Bars	11 Detachable Arched Bars	11 Detachable Arched Bars
Tarpaulin Tensile Rating	650g - 900g PVC Reinforced	650g - 900g PVC Reinforced	900g/m² Heavy Duty Industrial PVC

Localized Application Engineering

Engineered Scenarios for Problematic Cargo

Review how industrial field teams solve clearance and loading challenges using our tarpaulin open-top design.

Marble Slabs & Solid Stone Monoliths

Exporting high-density granite blocks and delicate marble slabs from quarries across Europe and Asia requires precision overhead gantry cranes. Soft open tops allow slab lifters to lower secured A-frames directly onto reinforced 28mm marine plywood flooring without contact damage.

Overhead Heavy Industrial Motors

Heavy electric drive engines and compressor skids often exceed side-door height clearances. With the soft top removed and rear header swiveled aside, hoist systems drop cargo onto the floor lashing rings, securing tie-down forces up to 2,000 kg per ring without racking stresses.

Expedited Emergency Equipment Turnarounds

Unlike hard tops that require yard hoists to lift heavy steel covers on and off, warehouse crews can roll up and secure a soft tarpaulin in under 15 minutes. This reduces demurrage at ocean gateways and cuts drayage dwell times.

Technical Clarifications

Frequently Asked Technical Questions

Detailed answers regarding tarpaulin structural specs, TIR compliance, and export customs handling.

How does the soft open-top tarpaulin hold up against heavy rainfall and highway wind loads?

Our tarpaulin covers use double-coated, PVC-reinforced panama-weave polyester (850–930 g/m²). Detachable arched steel roof bows maintain a 1.5° crest angle from center to side rails, ensuring rainwater drains off immediately. Longitudinal reinforcement bands prevent flapping and wind whip at highway speeds.

Can soft open-top containers safely carry out-of-gauge (OOG) over-height cargo?

Yes. When cargo exceeds the container's side rail height, the standard roof bows and tarpaulin are removed and safely lashed inside the box. The shipment moves as Out-of-Gauge (OOG) freight on container vessels, with fitted high-tensile lashing rings rated at 2,000 kg and corner-post eyes securing the load in place.

What customs anti-theft protections apply to soft-roof open-top designs?

All units comply with TIR Customs Convention standards. A heavy-duty steel core wire rope (TIR cable) routes through every tarpaulin eyelet and down through the swing-header locking eyes. Customs personnel secure both ends with an accredited tamper-evident seal, preventing interior access without leaving visible damage.

How does the movable swing header operate during crane loading?

The rear header bar connects to the top corner castings via a heavy-duty pivot hinge. During loading, operators release the locking pin and swing the header 180° outward (or remove it completely). Forklifts and overhead crane lines can then enter the interior unobstructed at roof level.

What certifications are delivered with factory-built export units?

Each unit carries a Bureau Veritas (BV) or China Classification Society (CCS) safety approval plate. This certifies compliance with ISO 1496-1, CSC (International Convention for Safe Containers), and UIC 592 rail codes for continuous multimodal service.

What is the standard production lead time for customized soft open-top fleets?

Standard sizes (20ft and 40ft High Cube) move through our automated line in 2 to 3 weeks for batch orders. Custom engineering requests—such as specialized internal heights, custom flooring materials, or specific corporate liveries—generally deliver within 25 to 35 business days from drawing approval to port berth staging.

Complete Commercial Export Catalog