China Wholesale Racking And Mezzanine Factory & Supplier

We exclusively procure prime hot-rolled and cold-rolled steel coils from top Chinese state-owned steel conglomerates (such as Baosteel, Shougang, and Ansteel). Upright columns and heavy structural beams utilize certified Q235B (yield strength ≥ 235 MPa) and Q355B (yield strength ≥ 355 MPa, equivalent to European S355JR and American ASTM A572 Grade 50). Full chemical heat composition analysis and mechanical tensile elongation test certificates (EN 10204 3.1) are dispatched with every consignment.

Yes. For critical infrastructure projects in Australia, the United States, the European Union, Southeast Asia, and the GCC, our structural engineering department generates full load calculation reports. These verify column buckling limits, beam deflection ratios, anchorage shear strengths, and baseplate pressure distributions in strict alignment with AS 4084-2012, EN 15512:2020, and RMI MH16.1. If required, we collaborate with licensed local engineering partners to provide official third-party P.E. stamps.

Standard manufacturing cycle times range from 15 to 22 calendar days for 2–5 standard 40ft High Cube (40HC) containers. For large-scale mezzanine platforms or projects over 500 tons, production schedules are phased to match your job site pouring and civil works. All upright columns are bound with protective plastic strapping, protective foam, and steel corner guards. Beams are nested in matched pairs to optimize container volume, allowing up to 24–26 metric tons per 40HC container without exceeding highway bridge gross vehicle weight limits.

Our automated surface line incorporates an 8-stage chemical immersion sequence: hot alkaline degreasing, twin water cascades, hydrochloric pickling for scale stripping, zinc phosphating passivation, and demineralized rinses. Following pre-treatment, components receive a thermosetting epoxy-polyester hybrid powder coat cured at 190°C–210°C. This guarantees a dry film thickness of 75–95 μm, delivering superior resistance against salt spray (ASTM B117 > 500 hours) and thermal condensation cycling without micro-cracking or flaking.

We provide multiple tiers of installation assistance: (1) Comprehensive 3D color-coded CAD drawings, bolt torque specifications, and sequenced erection instructions supplied with shipping documents; (2) Live video conference engineering support between our Guangzhou technical lead and your local installation riggers; (3) Deployment of bilingual installation supervisors directly to your international facility to manage rigging crews, verify laser leveling, and certify final structural torque handovers.

To prepare an optimized CAD drawing and cost calculation, our engineering team requires: (1) Building architectural floor layout showing column grid spacings, fire exits, and overhead clear heights (under sprinkler heads or ceiling truss eaves); (2) Palletized cargo dimensions (Width × Depth × Total Height including pallet) and maximum gross weight per pallet; (3) Forklift model, minimum turning aisle clearance, and maximum lifting height; (4) Local seismic acceleration parameters (if building permits require certified compliance).