Procure certified heavy-duty framing units, offshore equipment baskets, and structural chassis directly from our certified manufacturing infrastructure in Tianjin and Suzhou.
A shipping container frame is not merely a steel skeleton; it is an engineered primary load-bearing module designed to withstand rigorous dynamic forces, high stacking loads (up to 216,000 kg), and aggressive saline degradation.
Our OEM framing members utilize atmospheric corrosion-resistant SPA-H Corten steel (JIS G3125) with a minimum yield point of 355 MPa. When exposed to cyclical atmospheric moisture, Corten-A forms a dense passivating patina of amorphous copper-phosphorus ferrites, reducing oxidation rates by 80% compared to standard structural mild steel (Q235/SS400).
Precision-cast steel blocks (SCW 480 equivalent) anchored at eight vertices guarantee absolute interoperability with twistlocks, spreader beams, and chassis pins. Every casting is subjected to radiographic Non-Destructive Testing (NDT) to prevent subsurface porosity and micro-fissures during extreme offshore or multi-tier intermodal lifting.
Structural assembly leverages pulsed gas metal arc welding (GMAW) and robotic submerged arc welding (SAW) using AWS A5.18 ER70S-6 filler. Continuous root pass penetration on corner posts (6.0 mm thickness) and crossmembers (4.0–4.5 mm pressed C-sections) achieves 100% full-penetration weld integrity, eliminating stress concentrations.
Finite Element Analysis (FEA) Verification: Under ISO 1496-1 parameters, each production iteration is subjected to computational simulations demonstrating a safety margin exceeding 1.8x under maximum 9-high fully laden container stacking (9 x 24,000 kg static corner post load).
Decades of continuous supply chain integration, raw steel parity, automated cold-roll forming, and direct port connectivity create an insurmountable production advantage in North China industrial clusters.
Direct volume contracts with metallurgical giants like Baosteel and HBIS ensure traceable steel plate melt numbers, predictable mill test certificates (EN 10204 3.1), and zero volatile price gouging on Corten-A coiled strip.
CNC multi-axis fiber lasers and 1,200-ton hydraulic bending stations cut and profile frame components with geometric deviations held within ±1.0 mm diagonal skew across an entire 40ft footprint, exceeding ISO 668 norms.
High-throughput automated multi-stage shot blasting (Sa 2.5) paired with zinc-rich epoxy primers (minimum 30 μm DFT) and chlorinated rubber topcoats yields total dry film thickness up to 120 μm, exceeding 1,000 hrs ASTM B117 salt spray ratings.
Strategically situated within 100 km of Tianjin Port, eliminating excessive domestic drayage costs and guaranteeing rapid berthing for breakbulk or nested flat-pack container frame shipments bound for Rotterdam, Houston, or Durban.
The container framework industry is shifting rapidly from conventional dry-cargo transport shells into bespoke high-value structural modules serving green energy, distributed computing, and rapid prefab urbanism.
Utility-scale lithium-iron-phosphate (LFP) battery systems demand modified 20ft and 40ft heavy-capacity frames. These structures integrate reinforced base crossmembers engineered to bear point loads up to 45–55 metric tons gross, alongside thermal barrier cutouts and NFPA 69/68 explosion-relief framing.
Liquid-immersion cooling servers necessitate rigid structural skeleton frames that eliminate twisting deflection during crane transit. Custom ISO chassis provide integrated cable-gland roof collars, heavy acoustic baffles, and EMI-shielding channel profiles.
Modern volumetric construction relies on high-yield container framing systems that incorporate internal structural columns. These hybrid frames transfer axial loads through concrete grout cores or internal heavy H-beam inserts to achieve 15+ story structural certification without external cranes scaffolds.
From deep-sea hydrocarbon exploration to high-latitude agricultural preservation, discover how tailored OEM frame configurations satisfy exact operating tolerances.
For high-sea loading conditions where extreme wave impact causes sudden g-force surges, our offshore frames and open-top baskets integrate certified padeyes welded directly into upper rail assemblies, Charpy V-notch impact-tested structural steel plates (-20°C / -40°C), and verified DNV/BV safety lifting slings.
Refrigerated freight requires rigid perimeter framing that isolates heat transfer. Our reefer frames feature engineered stainless-steel (SUS 304) internal floor linings, high-density extruded aluminum bottom air rails, and thermal breaks preventing outer-rail sweating across long continental voyages.
UN Portable T75 and T11 cryogenic/chemical tanks place high bending moments on end frame collars. Our engineering incorporates heavy circular ring collars, gusseted bottom saddling, and high-tensile longitudinal bracing, preventing barrel stress cracking during rough intermodal shunting.
Budgetary FOB Tianjin / Qingdao pricing matrix for standard, modified, and project-specific framing assemblies. Actual quotes fluctuate based on global hot-rolled Corten coil indices and zinc surcharge levels.
| Model / Configuration | Dimensions (L × W × H) | Structural Steel Grade | Tare Weight (Frame) | Max Gross Mass | Certifications | Budgetary Unit Price (USD) |
|---|---|---|---|---|---|---|
| 10ft ISO Heavy Utility Frame | 2,991 × 2,438 × 2,591 mm | Corten-A (SPA-H) | 850 kg | 12,000 kg | ISO 1496, CSC | $1,150 – $1,650 |
| 20ft Standard Bare Skeleton Frame | 6,058 × 2,438 × 2,591 mm | Corten-A (SPA-H) | 1,280 kg | 30,480 kg | ISO 668, BV, CSC | $1,600 – $2,300 |
| 20ft High-Cube Heavy BESS Frame | 6,058 × 2,438 × 2,896 mm | Q355NH / SPA-H Reinforce | 2,400 kg | 45,000 kg | UL 9540A Ready, CSC | $3,400 – $4,800 |
| 40ft High-Cube Prefab Modular Frame | 12,192 × 2,438 × 2,896 mm | SPA-H + Light Gauge Purlins | 3,100 kg | 32,500 kg | EN 1090-2, CE, ISO | $3,800 – $5,200 |
| DNV 2.7-1 Offshore Half-Height Frame | 6,058 × 2,438 × 1,280 mm | EN 10025 S355ML (-40°C) | 2,150 kg | 15,000 kg | DNV-ST-E271, ISO 10855 | $4,500 – $6,800 |
| 20ft T75 Cryogenic Tank Saddle Frame | 6,058 × 2,438 × 2,591 mm | Corten Base + 304 S/S Ties | 2,800 kg | 36,000 kg | ASME VIII, IMDG, ADR | $5,600 – $7,900 |
Volume Tiers & MOQ Conditions: Prototype batch orders (1–5 units) incur setup tooling surcharges. Orders exceeding 50 TEU qualify for custom aperture laser stamping, embossed client branding on corner plates, and dedicated quality-control inspection holds at no extra cost.
Critical clarifications on steel specs, international load-testing certifications, and freight handling for global EPC procurement directors.
Explore our heavy-duty soft open tops, cryogenic intermodal tank frames, side-access bodies, and inverter-driven temperature-controlled shipping containers.
