Engineered Warehouse Racking & Specialized Storage Series
Custom OEM long span shelving and heavy-duty structural racking units manufactured to exact site dimensions, featuring high-gauge steel profiles, corrosion-resistant finishes, and verified load ratings.
Structural Anatomy & OEM Metallurgy of Long Span Shelving
A rigorous review of structural deflection calculations, cold-rolled profile geometry, cold-bending metallurgy, and chemical surface treatments required for mission-critical logistics operations.
Profile Metallurgy (Q235B vs Q355B)
We source prime hot-rolled coils slitted and cold-formed into specialized upright columns. Q235B steel offers high ductility for standard distribution centers, while Q355B low-alloy high-strength steel is deployed for high-density multi-tier catwalk mezzanines where seismic cross-bracing and buckling resistance are critical.
- Yield Strength (ReH): ≥ 235 - 355 MPa
- Tensile Strength (Rm): 370 - 510 MPa
- Punching Pitch: 50mm / 75mm Precision CNC
- Hole Geometry: Butterfly / Teardrop / Hexagonal
Beam Mechanics & Step Design
Long span shelving utilizes specialized P-shaped step beams and interlocking box beams. The internal recess accommodates flanged steel shelf panels, flush wire mesh decking, or drop-in moisture-resistant chipboard without raising the overall beam height profile, maximizing vertical cubic space per tier.
- Deflection Limit: 1/200 to 1/250 of Span (L)
- Connector Claws: 3-Claw / 4-Claw Robotic Welded
- Safety Lock: Spring Steel Auto-Engage Pins
- Load Range: 200 kg to 1,200 kg UDL/Level
Surface Treatment & C3/C4 Protection
To resist industrial humidity, saline coastal environments, and chemical outgassing, every frame and shelf undergoes automated 9-stage pickling, hot phosphating passivation, and pure thermoset epoxy-polyester electrostatic powder coating baked at 180°C–200°C to achieve exceptional adhesion.
- Coating Thickness: 60 to 90 Microns (μm)
- Salt Spray Test: ASTM B117 > 500 Hours
- Pencil Hardness: ≥ 2H Cross-Hatch 100%
- Galvanized Option: Pre-Galv or Hot-Dip (HDG)
| Series Designation | Bay Clear Span (mm) | Frame Depth (mm) | Upright Profile (mm) | Beam Section (mm) | Rated UDL (kg/Level) | Decking Infill Types | Compliance Standard |
|---|---|---|---|---|---|---|---|
| HEDA-LS200 (Light Long Span) | 1200 / 1500 / 1800 | 400 / 500 / 600 | 50 × 35 × 1.2 | P50 × 30 Step | 150 – 300 kg | 0.6mm Galvanized Steel / MDF | FEM 10.2.02 |
| HEDA-LS500 (Medium Industrial) | 1500 / 1800 / 2000 / 2200 | 600 / 800 / 900 | 55 × 47 × 1.5 | P60 × 40 Step | 350 – 600 kg | 0.8mm Powder Steel / Wire Mesh | EN 15512:2020 |
| HEDA-LS800 (Heavy Duty Shelving) | 1800 / 2000 / 2400 / 2700 | 800 / 1000 / 1200 | 60 × 50 × 1.8 | P80 × 50 Step | 650 – 900 kg | 1.0mm Ribbed Steel Panels | ANSI MH16.1 |
| HEDA-LS1200 (Pallet-Weight Manual) | 2000 / 2300 / 2500 / 2700 | 900 / 1000 / 1100 | 80 × 60 × 2.0 | Box 80 × 50 × 1.5 | 1,000 – 1,500 kg | Structural Wire Deck / Grating | AS 4084-2023 |
Future Procurement Trends in Industrial Long Span Shelving
How automation integration, multi-tier urban warehousing, sustainable green steel sourcing, and modular intralogistics are reshaping global storage procurement strategies.
AMR & Goods-to-Person Convergence
Traditional manual shelving is rapidly evolving to interface with Autonomous Mobile Robots (AMRs) and automated guided carts. Modern procurement demands bottom clearance zones for robotic drive-unders, low-reflection matte powder finishes for optical and LiDAR sensors, and integrated drop-in bin partitions.
Multi-Tier Catwalk Conversions
With real estate costs rising across global logistics centers, warehouse operators are moving away from single-tier layouts. High-bay long span shelving is now engineered from inception with the structural column strength to support multi-tier catwalk mezzanines, secondary floor grates, and spiral parcel chutes.
Low-Carbon Recycled Steel Sourcing
Global supply chain tenders increasingly enforce Scope 1, 2, and 3 emissions compliance. Racking manufacturers must provide Mill Test Certificates (MTC) showing recycled scrap steel ratios in electric arc furnace (EAF) production, coupled with VOC-free and TGIC-free electrostatic powder coating formulas.
Knock-Down Nesting for Freight Optimization
Volatile international container ocean freight requires extreme volumetric efficiency. Boltless modular long span shelving is replacing welded rigid frameworks, allowing upright frames and step beams to inter-nest within standard 40-foot High Cube (40'HQ) containers without wasted airspace.
Guangzhou Heda Shelves Co., Ltd. — Engineering Precision Since 2001
Headquartered in Guangzhou, China, HEDA Shelves operates a modern 30,000 square meter intelligent production facility equipped with high-precision automated roll-forming lines, 3D robotic welding stations, laser tube cutters, and a continuous automated powder coating tunnel. We control the complete lifecycle from steel coil slitting to overseas container lashing.
As a certified OEM & ODM manufacturer holding CE Certificate No. 2435-CPR-8605159 and ISO 9001:2015 Certification No. 18624Q00169R0M, our structural calculations adhere strictly to European FEM codes and American RMI standards, delivering certified reliability for multinational supply chain operators.
Verified 10-Stage Precision Manufacturing Workflow
Procurement & Engineering FAQ
Critical structural parameters, deflection formulas, international shipping certifications, and site installation protocols addressed directly by HEDA Shelves' chief engineering division.
Contact Us