Do you ship pallet racking to the United States and Canada?

Yes. Systems are packed for ocean freight in 20 ft and 40 ft containers and shipped to major North American ports such as Los Angeles/Long Beach, Houston, Savannah, New York/New Jersey and Vancouver. FOB and CIF terms are standard, and delivered options can be discussed per project.

Can you provide load ratings in pounds and feet?

Yes. Layouts and load tables can be issued in both imperial (lbs, ft, in) and metric units so your team, installer and engineer of record can review them without conversion.

Do you support permit and seismic review for North American projects?

We supply structural calculations, component specifications and shop drawings for each project. These documents are prepared to support review by your local engineer of record, who stamps drawings and confirms seismic and permit requirements for your jurisdiction.

How fast can I get a layout and quotation?

Send your building dimensions, clear height, pallet size, pallet weight and forklift type. Our engineers typically return a CAD layout, 3D rendering and itemized quotation within 24 hours.

Is racking compatible with standard 48 x 40 inch GMA pallets?

Yes. Beam lengths, frame depths and pallet supports are sized around 48 x 40 inch GMA pallets as well as custom pallet and container sizes used in your facility.

Top Trusted Shelving Longspan Factories & Exporter

Technical Whitepaper

Engineering Integrity of Longspan Shelving & Structural Racking

Understanding the physics of static deflection limits, cold-roll metallurgical properties, and seismic resilience in modern supply chain distribution centers.

In contemporary logistics real estate where floor lease costs escalate alongside throughput velocity, heavy-duty industrial longspan shelving and high-bay pallet racking operate as the primary structural skeleton of the warehouse. A procurement decision must balance structural mechanics against return on investment. Longspan shelving bridges the critical operational spectrum situated between light-duty slotted angle shelving and heavy structural pallet racking. Engineered specifically for manual handling, carton storage, e-commerce item picking, and high-density archive consolidation, longspan frameworks carry uniformly distributed loads (UDL) typically ranging from 300 kg to 1,200 kg per shelf tier, utilizing clear beam spans extending between 1,000 mm and 2,700 mm.

Metallurgical Chemistry & Yield Strength

Standard grade Q235B (yield strength $\ge 235 \text{ MPa}$) and high-tensile Q355B ($\ge 355 \text{ MPa}$) structural steel coils are cold-rolled on precision multi-station roll-forming lines. The controlled grain orientation during cold roll-forming minimizes internal residual stresses while maximizing sectional modulus against torsion and lateral buckling.

Static Deflection Ratio ($L/200$ vs $L/250$)

Under FEM 10.2.02 and EN 15512 codes, maximum permissible elastic deflection of horizontal step and box beams under full rated UDL is strictly constrained to $\delta \le L/200$ (industrial applications) or $\delta \le L/250$ (sensitive automated interfaces), guaranteeing that decking sheets do not deform permanently or induce joint disengagement.

Seismic Anchorage & Base Plate Dissipation

Upright columns utilize tapered keyhole or teardrop slot geometries paired with 3-claw or 4-claw safety connector brackets. High-shear safety locking pins prevent accidental unseating during dynamic impact. Footplates are structurally anchored using high-tensile M10–M12 chemical expansion anchors engineered for high ductility in seismic zones.

The integrity of any industrial longspan system depends fundamentally on its upright profile engineering. Unlike simple roll-folded sheet metal, industrial longspan uprights feature an omega-profile cross-section incorporating at least 8 to 12 longitudinal cold-worked bends. This sectional geometry shifts the cross-sectional shear center, dramatically improving the column's radius of gyration ($r_x, r_y$) and resisting Euler buckling across unsupported tier heights reaching up to 6,000 mm. For multi-tier catwalk and shelving-supported mezzanine applications, vertical column loads compound, demanding finite element analysis (FEA) to verify post-buckling behavior under combined axial compression and transverse seismic shear.

Racking Architecture	Typical Beam Span	UDL Capacity / Level	Pick Access Modality	Decking Substrate Compatibility	Seismic Zone Adaptability
Industrial Boltless Longspan	1,200 – 2,400 mm	300 – 800 kg	100% Direct Manual Hand-Pick	Galvanized Steel Slat / Wire Mesh / MDF	High (IBC / Eurocode 8 Compliant)
Heavy Selective Pallet Rack	2,300 – 3,900 mm	1,500 – 4,500 kg	Forklift / Reach Truck / VNA Turret	Pallet Support Bars / Drop-In Wire Deck	Critical (Base Isolation Available)
Push Back Dynamic System	Single Pallet Width	1,000 – 1,500 kg/cart	Forklift Front Load / LIFO Gravity	Structural Steel Nested Rolling Carts	Engineered Incline Rail Anchors
Shelving-Supported Mezzanine	Custom Spans to 6,000mm	350 – 1,000 kg/m² (Floor)	Multi-Level Manual + Conveyor / Lift	Perforated Steel Planks / B-Deck + Plywood	Full Structural Calc & Bracing Stamped
High-Bay Logistics Beam Racking	2,700 – 3,600 mm	2,000 – 4,000 kg	Turret Truck / Automated Crane (ASRS)	Structural Welded Channel Cross-Ties	Tight Tolerance Deflection $\le L/300$

Corrosion protection represents another vital benchmark in industrial export longevity. Racking systems shipped via intercontinental maritime routes must withstand intense humidity, salinity, and temperature fluctuations within shipping containers. Our factory incorporates a comprehensive 10-stage automated pre-treatment protocol, consisting of high-pressure alkaline degreasing, ultrasonic water rinsing, hot-acid pickling, structural phosphating, and deionized water passivation. This surface preparation guarantees optimal chemical bonding for electrostatic thermosetting epoxy-polyester powder coats applied at a calibrated dry film thickness (DFT) of 60 to 80 microns. The resulting finish easily withstands over 500 hours of continuous neutral salt-spray exposure (ASTM B117), exceeding standard commercial storage requirements.