Custom OEM Galvanized Pallet Racking Manufacturer & Supplier

Hot-dip galvanizing (HDG) per ASTM A123 / ISO 1461 occurs after the steel components are fully cut, punched, and welded. The entire finished upright frame or beam is submerged into molten zinc at ~450°C, coating all interior and exterior surfaces, punched holes, and weld seams with a thick, intermetallic zinc-iron alloy layer (65 to 100 microns thick). In contrast, pre-galvanized (Sendzimir) steel is galvanized continuously at the mill before slitting, punching, and forming. While pre-galvanized steel provides a smoother cosmetic surface, its zinc layer is much thinner (15 to 20 microns) and all punched beam-adjustment slots and cut ends leave bare steel exposed to ambient moisture. For severe environments, cold storage, outdoor staging, and coastal air, post-fabrication HDG is the engineering standard.

Galvanized steel exhibits superior structural stability in blast freezers operating between -25°C and -35°C. Traditional epoxy powder coatings become brittle at low temperatures; when subjected to forklift shocks or pallet scrapes, the paint film cracks, allowing moisture condensation to penetrate behind the coating. During refrigeration cycles, this trapped moisture freezes and expands, causing severe paint flaking and corrosion hidden beneath the surface. Hot-dip galvanization forms a true metallurgical alloy with the steel substrate, matching its thermal expansion coefficient and eliminating the risk of coating delamination or brittle shock fractures in sub-zero conditions.

Yes. Every OEM project designed by HEDA Shelves is backed by structural engineering packages in accordance with EN 15512 (European standard for steel static storage systems) or RMI ANSI MH16.1 (US Specification for the Design, Testing and Utilization of Industrial Steel Storage Racks). Our 3D layouts, slab loading calculations, anchor bolt shear/pullout verifications, and seismic acceleration assessments (designed to IBC and Eurocode 8 criteria) provide the verified engineering documentation required by municipal building authorities, Civil Defense inspectors, and industrial insurers worldwide.

We manufacture primarily using prime certified Q235B and high-yield Q355B hot-rolled structural steel coil stock (equivalent to ASTM A36 and ASTM A572 Grade 50 / EN S355JR). Raw materials undergo incoming ultrasonic and tensile testing to verify yield strength (fy ≥ 235–355 MPa) and elongation capacity. Beam deflection limits are engineered not to exceed L/200 under maximum uniformly distributed load (UDL) at full capacity, with an ultimate safety factor of 1.65 to 2.0 against structural yielding, ensuring long-term reliability under heavy operational demands.

Wet storage stain ("white rust") occurs when fresh zinc coatings encounter water without free airflow, trapping zinc hydroxide before the protective carbonate patina forms. To prevent this during containerized shipping across equatorial routes, HEDA Shelves applies clear chemical passivation (chromate or eco-friendly trivalent passivation) to all galvanized parts. Structural uprights and beam bundles are banded with timber dunnage spacers to ensure air circulation, wrapped in breathable micro-perforated film, and secured with desiccant bags inside shipping containers to keep humidity low throughout ocean transit.

To provide an optimized layout and quotation, we require: (1) Building architectural CAD drawing or dimensions, including clear ceiling height under low trusses, fire sprinkler drops, and building column grids; (2) Finished pallet specifications (Width x Depth x Height including cargo, along with maximum load weight per pallet); (3) Forklift model, maximum lift mast height, turning radius, and minimum right-angle stacking aisle width; (4) Total SKU volume and desired operational throughput (FIFO vs. LIFO); (5) Environmental conditions (ambient, cold store, or outdoor yard).