High-Quality Open Shipping Containers Factory & Factories

To replace the diaphragm stiffness normally provided by a corrugated steel roof sheet, our factory integrates reinforced top side rails with heavier wall section profiles (such as 60x60x4.0mm rectangular hollow sections), heavy-duty corner post gussets, and high-tensile removable steel roof bows. These components work together with an articulated rear swing-out header to pass the full ISO 1496 transverse and longitudinal racking load tests (150 kN transverse force).

Soft open-top containers utilize removable arched tubular steel roof bows covered with heavy-duty, waterproof, PVC-coated polyester tarpaulins (650–900 g/m²) and secured with TIR wire cords. Hard open-top containers feature a completely removable rigid steel roof plate equipped with corner lift pockets. Hard open-tops offer superior weather shielding and mechanical security against theft, whereas soft open-tops provide higher vertical loading clearance for slightly over-height breakbulk cargo.

All structural structural frames are fabricated from genuine Corten-A / SPA-H weathering steel. Following full Sa 2.5 automatic shot-blasting to eliminate mill scale, the steel receives a three-tier paint application: an inorganic/organic zinc-rich epoxy primer (30μm), an epoxy intermediate barrier coat (40μm), and a weather-resistant polyurethane topcoat (40μm), providing a minimum dry film thickness (DFT) exceeding 110μm, compliant with ISO 12944 C5-M extreme marine ratings.

Yes. Operating as an advanced OEM/ODM manufacturing facility since 1983, our engineering department provides comprehensive technical drawing verification for bespoke configurations: including bi-fold full-side access doors, end-to-end roll-up doors, modified internal cargo anchor plates, and insulated thickened composite walls, all certified through FEA structural modeling prior to steel cutting.

Every container lot undergoes rigorous verification: dimensional tolerance auditing, six-direction corner casting dimension confirmation, weld ultrasonic/magnetic particle tests, door gasket seal pressure testing, and high-pressure water deluge spray testing (minimum 1.0 bar pressure from all nozzles). Factory certification is authenticated by third-party surveyors from Bureau Veritas (BV), Lloyd's Register (LR), or DNV.

Standard production runs of open and dry freight units typically ship within 3 to 5 weeks depending on custom design complexity. Situated less than 100 kilometers from Tianjin Seaport and near Suzhou shipping hubs, units are delivered directly to deep-water ocean berths as 'One-Way Shipped' freight loaded with customer cargo, or as empty repositioned stacks (SOC - Shipper Owned Containers) without costly drayage overheads.