Featured Industrial Longspan Shelving & High-Density Racking
Manufactured in full accordance with European EN 15512 and FEM 10.2.02 codes. Certified load capacities ranging from 300 kg to over 3,000 kg per beam level.
Heavy Duty Manual
JIAMEI Storage Shelving Warehouse Storage Rack Long Span Shelf Rack
Designed for high-throughput manual carton picking and bulk SKU sorting, utilizing interlocking stepped beam profiles and multi-ribbed steel decks.
Adjustable 5-Tier
High-Ampacity Durable Metal Racks/Shelves Adjustable Multi-Function Long Span 5 Layer Steel
Cold-rolled structural steel construction with electrostatic powder coating, providing rust resistance and flexible upright adjustments for e-commerce hubs.
Boltless Fast Setup
Product Customization Warehouse Storage Metal Boltless Shelving Light Duty Long Span Rack
Tool-free interlocking assembly featuring teardrop and keyhole punch layouts. Designed for agile distribution center reconfigurations and retail backrooms.
Handling Logistics
NEXARA Mould Racking HDPE Recycle Material Flat Surface Three Runner Logistics Pallet
Industrial-grade high-density polyethylene pallet optimized for seamless integration across automated longspan racking lanes, shuttle carts, and conveyor systems.
Sanitary Logistics
Stainless Steel Kitchen Storage Mesh Hand Push Cart 3-Tier Rolling Folding Trolley Rack
Anti-microbial and corrosion-proof rolling unit suited for cleanroom distribution, pharmaceutical fulfillment, and cold-room food handling environments.
Structural Accessory
Customized Resistant Corrosion Heavy Duty Pallet Rack Support Bar Rack Cross Beam
Engineered flanged cross beams and pallet support bars delivering critical torsional stability and preventing point-load deflection on expansive longspan runs.
Multi-Tier Pick
Factory Steel Durable Multi-Level Storage Shelving 300KG Capacity Per Layer Stackable
Optimized for vertical mezzanine integration and cat-walk picking towers, featuring certified safety drop-pins and continuous welded column profile footings.
Rack-Clad Structure
Steel Structure Building Large Span Warehouse For Industrial Storage And Logistics
Integrated civil-rack building systems where upright frames form the primary building envelope load support, maximizing clear storage volume and reducing build times.
Structural Mechanics & CE Marking Standards (EN 15635 & CPR)
An authoritative engineering assessment of yield point behavior, deflection limits, cold roll-forming tolerances, and seismic factor calculations in modern longspan racking.
Cold-Formed Steel Metallurgy & Elastic Limit Analysis
Longspan shelving components must maintain an exceptional balance between ultimate tensile strength ($R_m$) and yield point ($R_{eH}$). We utilize premium certified Q235B and Q355B structural coil grades, verified under EN 10025-2 standards.
During progressive multi-stage cold roll-forming, work hardening increases the yield strength at corner radii by 12% to 18%, significantly mitigating the threat of local buckling under concentrated manual and pallet loading.
- Minimum yield strength: $\ge 235\text{ MPa}$ to $355\text{ MPa}$
- Elongation at break: $A_5 \ge 24\%$ ensuring plastic deformation resistance
- Continuous eddy-current weld seams on boxed beam configurations
Beam Deflection Limits & Safety Factors (FEM 10.2.02)
Structural integrity mandates strict compliance with the FEM 10.2.02 and EN 15512 codes. The maximum permissible vertical deflection ($\delta$) of any longspan beam profile under uniformly distributed load (UDL) must not exceed $L/200$ (or $L/250$ for precision picked inventory).
Every beam-to-column connector features a 3 or 4-claw stamped bracket with positive safety locking pins, designed to withstand upward dislodgment forces exceeding $5\text{ kN}$ generated by manual snagging or material handling equipment.
- Global safety coefficient: $\gamma_s \ge 1.50$ on steel yield capacity
- Load combination factor for live load: $\gamma_Q = 1.40$ (EN 1990)
- Torsional anti-roll calculations applied to all stepped beam runs
CE Compliance (CPR 305/2011) & Factory Production Control
The Construction Products Regulation (EU CPR No. 305/2011) and EN 1090-1 require certified industrial racking manufacturers to execute rigorous Factory Production Control (FPC). Our plant maintains valid CE Certificate No. 2435-CPR-8605159.
Traceability extends from the primary steel mill test report (MTR 3.1) through CNC laser cutting, multi-station automated roll-forming lines, down to post-curing adhesion testing of thermoset powder coatings.
- Weld quality execution class: EXC2 according to EN 1090-2
- Annual notified body audits with verifiable Declaration of Performance (DoP)
- Cross-hatch adhesion testing (ISO 2409) Class 0 on all painted surfaces
| Profile Designation | Clear Span ($L$) | Material Spec | Max UDL Rating | Theoretical Deflection | Calculated Safety Factor | CE Design Code |
|---|---|---|---|---|---|---|
| LS-55/30 Step Beam | 1,200 mm | Q235B Cold-Rolled | 800 kg / level | 2.8 mm (< L/400) | 1.82 | EN 15512:2020 |
| LS-65/35 Step Beam | 1,800 mm | Q235B Cold-Rolled | 600 kg / level | 5.4 mm (< L/330) | 1.68 | EN 15512:2020 |
| LS-80/40 Box Beam | 2,100 mm | Q355B High-Tensile | 1,000 kg / level | 6.9 mm (< L/300) | 1.75 | EN 15512:2020 |
| LS-90/50 Heavy Box | 2,700 mm | Q355B High-Tensile | 1,500 kg / level | 9.8 mm (< L/275) | 1.64 | FEM 10.2.02 |
| UF-55 Omega Column | Upright Frame | Q235B (1.8mm thk) | 5,500 kg total bay | Axial Critical Euler | 2.10 | EN 15620 Tolerances |
Future Procurement & Technological Development Trends
How progressive warehouse operators, 3PL logistics networks, and retail omnichannel enterprises are shifting specifications for the 2026–2030 supply cycle.
AMR & Cobot Integration in Manual Aisles
Procurement teams are moving away from fixed shelving footprints. Modern longspan bays are specified with raised lower clearance bars (150–200mm) and magnetic floor guide paths to enable Autonomous Mobile Robots (AMRs) to cruise underneath pickers for hybrid person-to-goods replenishment.
Modular Vertical Scalability & Catwalks
Rather than committing to single-tier shelving, tier-one buyers demand column punch layouts that allow retrospective stacking into multi-tier rack-supported mezzanines. This strategy saves up to 60% in initial capital outlay by enabling vertical expansion without facility structural changes.
Circular Metallurgy & Carbon Accounting
European supply chain mandates (CBAM - Carbon Border Adjustment Mechanism) require verifiable carbon footprints for structural steel imports. Factories are transitioning to electric arc furnace (EAF) coiled steel with 40%+ recycled scrap content and zero-VOC heavy-metal-free thermosetting powder.
Digital Twin & BIM Structural Modeling
Leading suppliers now deliver complete IFC (Industry Foundation Classes) and Revit BIM families with embedded FEA stress data. Warehouse architects integrate the exact shelving static and seismic calculations directly into their facility structural models before pouring floor slabs.
Full In-House Fabrication: Steel Coil to Final Export Container
Integrated manufacturing across our 30,000 square meter plant eliminates third-party outsourcing variability. Every upright and beam is tracked with continuous QC checkpoints.
Raw Steel Slitting
High-tensile prime coils tested for chemical composition & thickness tolerance ($\pm 0.05\text{mm}$).
CNC Column Punching
High-speed automated progressive die punching guaranteeing $\pm 0.1\text{mm}$ pitch accuracy along 12m lengths.
Continuous Roll Forming
Multi-stand CNC roll-forming lines producing omega uprights and step beams without residual stress.
Pickling & Phosphating
Multi-stage immersion cleaning stripping oil, scale, and creating a microscopic zinc phosphate conversion layer.
Electrostatic Coating
Automated Swiss Gema powder application followed by $200^\circ\text{C}$ curing for tropical humidity defense.
Direct Engineering Partner Since 2001
For more than 25 years, our engineering-driven manufacturing plant in Guangzhou has specialized exclusively in industrial racking, selective systems, and high-performance longspan shelving. With an active production team of over 300 professionals and monthly fabrication throughput reaching 30,000 metric tons, we bridge the gap between heavy structural reliability and rapid delivery logistics.
We do not merely supply steel profiles; our in-house structural engineering group delivers complete warehouse layout proposals, static finite element simulations, and site-specific seismic anchoring calculations tailored to local building regulations across Southeast Asia, Europe, the Middle East, and the Americas.
Frequently Asked Questions for Industrial Shelving Procurement
Clear technical, regulatory, and logistics answers compiled by our chief structural engineers for global procurement officers, general contractors, and plant engineers.
What structural differences exist between standard boltless shelving and industrial longspan systems?
While light boltless shelving utilizes pressed sheet uprights typically rated for 100–150 kg/level, industrial longspan systems employ heavy-duty cold-formed omega-profile upright columns ($55\times47\text{mm}$ or $60\times50\text{mm}$) combined with stepped horizontal beams. This structural configuration accommodates beam spans exceeding 2,700mm and withstands uniformly distributed loads from 500 kg up to 1,500 kg per shelf tier without elastic deformation.
How does CE certification (EN 1090-1 / CPR 305/2011) protect the importer?
CE marking under CPR 305/2011 is a legal requirement for structural steel products installed in the European Union and recognized worldwide as an authoritative benchmark for quality. It ensures that the manufacturer has proven Factory Production Control (FPC), uses certified materials with batch-level mill test reports (EN 10204 3.1), adheres to qualified welding procedure specifications (WPS/WPQR), and issues an authentic Declaration of Performance (DoP).
How is rust and corrosion prevented in high-humidity or coastal storage facilities?
All fabricated carbon steel components undergo an automated continuous surface treatment line: hot alkaline degreasing, acid pickling to eliminate mill scale, and zinc-iron phosphating. This chemically bonds a corrosion-resistant passivation barrier prior to electrostatic application of thermosetting polyester epoxy powder ($60\text{--}90\,\mu\text{m}$ dry film thickness). For coastal sites, hot-dip galvanizing per ISO 1461 is available.
Can longspan shelving uprights be customized for seismic zone installations?
Yes. For seismic regions (such as the Pacific Rim or southern Mediterranean zones), structural calculations are executed per EN 16681 guidelines. Our engineers calculate the horizontal ground acceleration forces ($S_a$), increase base plate dimensions, specify heavy-duty Hilti/Fischer mechanical or chemical expansion anchors, and incorporate dynamic spine cross-bracing to disperse vibrational harmonics.
What decking materials can be configured on your longspan step beam levels?
We supply three primary deck formats tailored to operational needs: (1) Flush galvanized steel panel shelves with integral structural hat stiffeners; (2) Drop-in electro-galvanized wire mesh decks that provide 70%+ open area for in-rack fire sprinkler water penetration (NFPA 13 compliance); and (3) Heavy-duty structural chipboard or melamine-faced MDF with bottom retaining Z-bars.
What container loading optimization practices are implemented to reduce sea freight costs?
Longspan components are bundled using automated steel strapping and protective edge protectors. Upright frames can be shipped flat-packed (knocked-down) with bolted bracing or fully welded depending on project labor costs. Beams are nested in compact bundles with custom dunnage. A standard 40HQ container typically consolidates 22 to 25 metric tons of packed racking without wasted volumetric space.