Technical Verification
Frequently Asked Questions for Engineering & Procurement Tenders
Detailed answers prepared by senior structural engineers covering material specifications, safety factors, and global logistics execution.
Which design standards and structural calculations are used for load engineering?
Our structural engineering team designs and calculates load capacities strictly in accordance with European Standard EN 15512:2020 (Steel static storage systems - Specification of beam-pallet racking systems), EN 15620 (Tolerances, deformations and clearances), and the RMI (Rack Manufacturers Institute) MH16.1 specification for North American projects. For seismic locations, we apply EN 16681 dynamic analysis modeling ground accelerations, ductilities, and connection plastic rotation limits. Fully stamped structural calculations and load notices (working load limit plaques) are delivered with every engineered project.
How does your OEM/ODM manufacturing ensure consistency across high-volume container shipments?
Our 30,000 m² factory operates automated continuous cold roll-forming lines integrated with CNC punching presses. This guarantees that hole-pitch tolerances along upright columns remain within ±0.5mm across spans exceeding 12 meters. Welding of beam end-connectors is performed via dual-torch robotic welding cells, which eliminates cold laps and porosity. Every production lot undergoes destructive weld pull testing, tensile strength verification, and powder dry film thickness (DFT) checks (60–80 μm minimum) documented in our ISO 9001:2015 quality records.
What surface treatment is recommended for sub-zero cold storage facilities vs ambient dry warehouses?
For standard ambient warehouses (indoor dry environments), our 10-step surface finishing process—consisting of alkaline degreasing, rinse, acid pickling, rust removal, phosphating, and thermoset polyester electrostatic powder coating baked at 180°C—provides superior scratch resistance and aesthetic durability. For sub-zero cold stores (-25°C to -30°C) with fluctuating humidity, we recommend either hot-dip galvanizing (HDG) to ISO 1461 standards (minimum coating thickness 55–70 μm) or pre-galvanized high-yield steel coils (Z275 coating class) to eliminate the risk of micro-cracking and rust creep at punched connection slots.
Can your factory provide private labeling and custom profile matching for European & American distributors?
Yes. A major component of our OEM business is partnering with logistics equipment distributors, material handling dealers, and system integrators. We support custom tooling fabrication for proprietary upright hole patterns (such as diamond, teardrop, hex-slot, or omega profiles), custom beam connector claws, specific RAL corporate colors, and personalized embossed company branding on column protectors and row spacers. In addition, we ship products flat-packed with barcoded export tagging, numbered bundles, and neutral or custom-branded packing slips for streamlined regional distribution.
What preliminary architectural data is required to generate a turnkey CAD layout and formal quotation?
To provide an engineered proposal within 24–48 hours, our project division requires:
1. An architectural floor plan (AutoCAD .DWG or dimensioned .PDF) identifying column centers, clear height under roof steel/sprinklers, building doors, and slab expansion joints.
2. Concrete slab specifications (thickness, reinforcement, compressive strength f'c, and allowable point loading).
3. Pallet data: Dimensions (width, depth, overall height including cargo overhang) and maximum gross weight.
4. Material handling equipment (MHE) specification sheets: Mast collapsed height, maximum lift height, and minimum right-angle aisle turning width ($A_{st}$).
What are the sea freight logistics and container packing methodologies for international transit?
Structural racking involves high-mass, long-span materials that require specialized ocean container stowage. Upright frames are systematically nested with corrugated board separations and heavy-duty steel strapping. Beams are stacked in modular wooden dunnage crates designed for efficient un-stuffing via extended-fork counterbalance trucks at destination ports (Rotterdam, Hamburg, Felixstowe, Valencia, etc.). Small accessories, base plates, and safety locks are categorized, bagged, and palletized in reinforced plywood cases to eliminate transit chafing, moisture exposure, and shipping losses.