Explore heavy-duty corner-casting frames, structural skeletal units, and complete refrigeration systems precision-built in our Tianjin facility to ISO 1496/1 and CSC criteria.
The international market for shipping container frames has evolved from simple standardized steel skeletons to multi-disciplinary structural modules engineered for high dynamic stress, cryogenic applications, and off-grid infrastructure.
Modern container frame fabrications demand structural Corten steel (SPA-H JIS G3125) with a minimum yield strength of 345 MPa. Atmospheric corrosion resistance forms an impervious patina, mitigating degradation in harsh saline offshore environments.
Structural chassis are increasingly procured as primary skeletal structures for modular data centers, mobile power battery energy storage systems (BESS), and rapid-deployment medical facilities requiring strict deflection tolerances.
Surging intercontinental trade of biological pharmaceuticals, fine chemicals, and perishable foodstuffs drives demand for reinforced reefer perimeter bases and DNV 2.7-1 / EN 12079 offshore liquid tank frames.
Every standard ISO skeletal frame relies on precision-cast steel corners (ISO 1161), robust tubular side rails, and high-tensile crossmembers to withstand the dynamic stacking forces of multi-tier container vessels.
Fabricated from low-carbon cast steel (SCW480 or equivalent) subjected to 100% radiographic or ultrasonic testing. Engineered to withstand individual corner compressive loads exceeding 848 kN (86,400 kg) during 9-high stacked cellar stowage.
Constructed using hot-rolled press-formed channel sections (minimum 4.5mm thickness). Crossmembers spaced at 300mm centers with integrated forklift pockets provide rigid structural support for concentrated axle wheel loads up to 5,460 kg.
Fully automated robotic arc welding lines produce uniform, defect-free full-penetration fillet welds across high-stress corner posts, ensuring complete structural airtightness and extended fatigue resistance under severe cyclic loading.
Direct factory-gate reference pricing for bulk purchasing, container modification programs, and custom OEM manufacturing. Estimates are FOB Tianjin / Shanghai Ports.
| Frame Classification | Structural Profile & Dimensions | Primary Material | Certifications | MOQ | Estimated Unit Price (USD) |
|---|---|---|---|---|---|
| 20ft Standard ISO Dry Frame | 6,058 x 2,438 x 2,591 mm (8'6" H) | SPA-H Corten Steel / Q345D | CSC / BV / ISO | 4 Units | $1,350 - $1,750 |
| 40ft High-Cube Skeletal Frame | 12,192 x 2,438 x 2,896 mm (9'6" H) | High-Tensile SPA-H / SM490YA | CSC / ABS / BV | 2 Units | $2,300 - $2,950 |
| 20ft Refrigerated Base Chassis | Insulated floor base with T-bar provisions | Stainless 304 / Corten Base | ISO 1496/2 / BV | 2 Units | $2,600 - $3,400 |
| 40ft Side-Open Reinforcement Frame | Unsupported longitudinal box-beam girder | Structural Corten Tube | ISO / CSC Tested | 2 Units | $3,800 - $4,600 |
| DNV 2.7-1 Offshore Sub-Frame | 10ft / 20ft Dynamic Lifting Pad Eyes | Charpy V-Notch (-20°C Steel) | DNV GL / EN 12079 | 1 Unit | $4,200 - $5,800 |
| 20ft ISO Tank Container Frame | Full-collar cylindrical saddle chassis | Q345E / Normalized Carbon | ASME / IMDG / CSC | 2 Units | $3,100 - $4,100 |
*Final pricing is indexed against global hot-rolled steel coil rates, raw material indices, zinc-rich primer specifications, and project-specific batch sizes.
Navigating international cross-border cargo compliance demands certified pedigree, auditable welding inspector qualifications, and factory-documented metallurgical tests.
Every frame destined for intermodal logistics includes an integrated, tamper-proof stainless steel CSC plate stamped with maximum gross weight, allowable stacking weight (typically 216,000 kg), and transverse racking test values.
Structural steel receives SA 2.5 shot-blasting, followed by a three-coat industrial paint matrix (zinc-rich epoxy primer, epoxy intermediate, and aliphatic polyurethane topcoat) guaranteeing over 15 years of coastal endurance under ISO 12944.
Our engineering facility (Tianjin & Suzhou hubs) provides complete structural calculation books, finite element analysis (FEA) reports, and customized CAD/BIM models to support rapid municipal building permitting in North America and the EU.
Strategically located within 100 kilometers of the primary Northern China maritime gateway (Tianjin Xingang Port), our manufacturing hub eliminates inland logistics friction and expedites ocean dispatch.
Advancing container chassis design through lightweight metallurgical alloys, integrated IoT stress telemetry, and carbon-optimized lifecycle engineering.
Deployment of multi-axis laser tracking arc welding systems reducing dimensional variances to ±1.5mm across all 40ft high-cube diagonals, surpassing standard ISO tolerances.
Integration of 700 MPa class thermo-mechanically controlled processed (TMCP) steel for side beams, reducing tare frame weight by 14% without compromising 9-tier vessel stacking load ratings.
Cast-in micro strain gauges and RFID stress sensors embedded directly into ISO corner castings to deliver real-time load telemetry and dynamic fatigue alerts for smart logistics fleets.
Full transition of structural spray lines to solvent-free, water-dispersible ceramic barrier coatings, lowering life-cycle embodied carbon while upholding strict C5-M marine corrosion classes.
Clear, authoritative technical answers to assist procurement directors, civil structural engineers, and equipment managers before placing orders.
Discover our heavy-duty offshore baskets, cryogenic T75 ISO tank sub-frames, open-top logistics containers, and auxiliary mobile cooling platforms.
