Top Trusted Warehouse Storage Shelving Manufacturer & Factory

Under international storage rack design codes (including European FEM 10.2.02 / EN 15512 and American ANSI/RMI MH16.1), the maximum vertical deflection of a horizontal load beam under full rated design load must not exceed L / 200, where L is the clear distance between upright columns (for instance, a 2,700 mm beam has a maximum permissible sag of only 13.5 mm). Furthermore, structural safety factors must incorporate a minimum coefficient of 1.5 for steel yield stress and 1.4 to 1.6 for dynamic impact and connection weld shears. All HEDA Shelves load tables reflect these engineering criteria, verified with certified physical destruction testing.

The designation denotes yield strength in megapascals (MPa). Q235B offers a minimum yield strength of 235 MPa and excellent elongation properties, making it the industry standard for light, medium, and standard heavy-duty selective racking. Q355B (yield strength ≥ 355 MPa) possesses a higher tensile and load-bearing ceiling, enabling engineers to manufacture high-bay uprights (reaching 12 to 30 meters) and radio shuttle guide rails with thinner gauge profiles without compromising structural buckling safety. Both grades are sourced from certified primary mills (such as Baosteel or Shougang) with complete 3.1 Material Test Certificates (MTC).

Our metal finishing process starts with a strict 9-stage chemical pre-treatment: high-pressure alkaline degreasing, industrial acid pickling to eliminate mill scale, water rinsing, and zinc phosphating to create a microscopic crystalline bonding substrate. Afterward, components pass through a 100-meter automated powder coating tunnel utilizing TGIC-free epoxy-polyester powder baked at 180°C–200°C. For coastal warehouses, chemical plants, or sub-zero refrigeration, we offer hot-dip galvanization (HDG) compliant with ISO 1461, delivering a minimum zinc coating thickness of 65–85 microns.

To provide an optimized design within 24 hours, our engineering department requires: 1) Architectural Parameters: Clear height beneath obstructions (sprinklers, light fixtures), building column spacing grid, floor slab thickness and concrete compressive strength (e.g., C25/C30). 2) Pallet & Unit Load Specifications: Total footprint (W x D x H including pallet overhang) and maximum gross weight. 3) Material Handling Equipment (MHE): Forklift type, mast collapsed height, maximum lift height, and minimum right-angle stacking aisle turning radius (AST). 4) Inventory Dynamics: Total SKU count, required picking throughput, and environmental operating temperatures.

Upright frames are shipped unassembled as separate vertical columns, horizontal braces, and diagonal struts. This allows thousands of running meters of upright steel to be compressed flat into wooden dunnage crates or protective steel banding with plastic corner guards. Step beams and box beams are nested head-to-tail in uniform square bundles separated by corrugated spacers to prevent paint abrasion. Small hardware (safety locking pins, baseplates, concrete chemical expansion wedge anchors) is packed in heavy-duty reinforced 5-ply cartons strapped to pallets, maximizing the cubic payload of 20GP and 40HQ ocean containers.

Yes. As a true direct manufacturer, we provide comprehensive OEM/ODM engineering. We maintain computerized powder formulation systems capable of matching any RAL color code (popular industry standards include RAL 5015 Sky Blue, RAL 2004 Pure Orange, RAL 7035 Light Grey, and RAL 9005 Jet Black). Furthermore, custom beam connector profiles, teardrop hole punching, and custom branding stamped into upright steel columns are available for high-volume distributors and international brand integrators.

Every shipment includes an engineered project dossier: detailed 2D architectural assembly schematics, numbered component pick lists corresponding to container bundle tags, 3D exploded structural views, anchor bolt torque specifications, and step-by-step video installation tutorials. For large-scale multi-tier mezzanines or automated shuttle high bays, HEDA Shelves dispatches bilingual project installation supervisors directly to the client job site to direct local assembly teams.

Guangzhou Heda Shelves Co., Ltd. holds active CE Certification under certificate number 2435-CPR-8605159, certifying that our structural steel racking conforms to European Construction Products Regulation (CPR). We maintain active ISO 9001:2015 Quality Management System certification (No. 18624Q00169R0M), RoHS compliance certificates, and third-party metallurgical weld and destructive load test documentation from premier global inspection authorities including SGS and TÜV Rheinland.