Manufactured in ISO 9001:2015 and CE-certified fabrication facilities. High-precision cold-formed profiles, automated electrostatic powder coating, and structural load compliance according to RMI MH16.1, FEM 10.2.02, and AS 4084 standards.
Operating since 2001, Guangzhou Heda Shelves Co., Ltd. controls a modern 30,000 m² heavy-gauge manufacturing base staffed by over 300 senior structural engineers, certified welders, and logistics planners. Delivering end-to-end OEM and ODM precision across 120+ countries.
We operate 16 continuous automated CNC roll-forming lines capable of handling certified Q235B, Q355B, and high-strength SS400 structural steel strips up to 3.5mm thickness. Beams, upright frames, and bracing channels are punched with micrometric tolerances.
Every single pallet rack configuration is engineered in-house utilizing advanced Finite Element Analysis (FEA). We supply third-party-ready structural calculations matching regional building codes, including high-seismic fault zones across the Pacific Rim.
Durability in high-humidity coastal operations and sub-zero cold chain environments requires immaculate surface pretreatment. All steel components pass through a 7-stage chemical immersion bath before electrostatic powder curing.
Single pallet racks—commonly referred to as single-deep selective pallet racking—form the operational backbone of modern high-throughput logistics facilities. By dedicating one pallet position per rack face depth, the system provides 100% immediate selectivity, maximum inventory visibility, and high warehouse throughput.
The vertical upright frame consists of two roll-formed columns braced diagonally and horizontally with precision roll-formed C-profiles. Column profiles vary from 80mm to 120mm face widths, engineered with multi-ribbed returns to counteract torsional flex and lateral buckling under elevated dead-load and live-load stresses.
Steel grade selection is pivotal: our factory utilizes high-tensile Q355B (equivalent to ASTM A572 Grade 50) for tall installations (>8 meters), yielding a minimum yield strength of 355 MPa to ensure safety factors between 1.65 and 1.92 under full dynamic load ratings.
Horizontal load beams utilize interlocking box profiles or step profiles welded to multi-tang end connectors (3-claw, 4-claw, or 5-claw connectors). The connection utilizes a tapered wedge action that tightens under pallet weight, substantially increasing structural joint rigidity and minimizing frame drift.
Each connector integrates a patented automatic spring-steel safety lock. This prevents beam dislodgement during accidental forklift impact or vertical pallet snagging. Deflection criteria strictly adhere to L/200 (or L/300 for automated interfaces) under full uniformly distributed load (UDL).
The transfer of combined axial loads and overturning moments into the warehouse concrete slab depends on engineered baseplates. For seismic active zones, we utilize enlarged ductile steel footplates (thickness from 8mm to 16mm) secured via dual or quad M12–M16 high-tensile mechanical wedge anchors or epoxy chemical studs.
Baseplate shimming protocols allow precise leveling on unlevel concrete slabs, ensuring vertical plumbness within 1/1000 of total frame height as mandated by international installation tolerances.
| Storage Topology | Selectivity Ratio | Floor Footprint Utilization | Rotation Method | Forklift Compatibility | Ideal Application Scenario |
|---|---|---|---|---|---|
| Single-Deep Selective | 100% (Instant) | 35% – 45% | FIFO / LIFO | Standard Counterbalance, Reach Truck | High-SKU distribution, e-commerce, retail hubs |
| Double-Deep Selective | 50% (Secondary access) | 50% – 60% | LIFO | Pantograph Reach Truck | Medium SKU velocity, batch manufacturing |
| Drive-In / Drive-Through | 15% – 20% (Lane-based) | 65% – 75% | LIFO / FIFO | Narrow Counterbalance | Cold storage, beverage bulk storage, seasonal goods |
| Very Narrow Aisle (VNA) | 100% (Instant) | 55% – 65% | FIFO / LIFO | Articulated Truck, Man-Up Turret | High-bay distribution centers with premium real estate |
| Pallet Gravity Flow | Single Lane Access | 70% – 85% | Strict FIFO | Standard Counterbalance | Perishable food, pharmaceuticals, rapid dispatch |
Global supply chains demand higher throughput, heightened safety resilience, and environmental transparency. Warehouse managers and procurement directors are pivoting away from generic commodity racking toward highly engineered, automated, and sustainable storage infrastructure.
Single pallet racks are transitioning into hybrid storage cells capable of accommodating autonomous mobile robots (AMRs) and automated guided vehicles (AGVs). Procurement specifications require tighter beam deflection limits (L/300) and laser-calibrated visual QR/reflector targets integrated directly into upright faces.
Modern mega-warehouses are incorporating real-time structural health monitoring (SHM). By embedding piezoelectric strain sensors within heavily loaded lower beams, warehouse management systems (WMS) instantly detect overweight pallets, structural impacts, and cumulative metal fatigue.
With global temperature-controlled logistics booming, procurement directives mandate specialized sub-zero coating chemistries. Modified epoxy-polyester hybrids and continuous hot-dip zinc plating resist embrittlement and micro-fissuring in frozen storage facilities operating down to -35°C.
Regulatory frameworks such as the European Carbon Border Adjustment Mechanism (CBAM) are compelling B2B buyers to verify the carbon footprint of structural steel. Our factory utilizes scrap-recycled Electric Arc Furnace (EAF) steel coils alongside fully automated solar-assisted manufacturing processes.
Require specialized CAD layout drawings and load stress calculations for your facility?
Get a QuoteFrom client warehouse architectural drawings to containerization and on-site assembly guidance, our turnkey workflow eliminates technical errors, avoids shipping bottlenecks, and guarantees structural compliance.
Clients submit DWG floor plans, clear building ceiling heights, slab loading limits, pallet weights, and material handling equipment (forklift) turning radius specifications. Our engineering team prepares preliminary 2D CAD and 3D layout renderings.
Structural finite element simulations model dead loads, live loads, wind forces, and seismic acceleration spectra (NCh 433, E.030, NSR-10, AS 4084). Column thicknesses, connector pins, and baseplate dimensions are optimized for maximum structural efficiency.
Certified steel coils are cold-rolled through 16 automated forming stages. Punching, flying-shear cut-to-length, robotic bracket welding, and 7-stage surface pretreatment are conducted under continuous digital optical inspection.
Every shipment is packaged with industrial-grade EPE protective wrapping and high-tensile steel strapping. Nesting software simulates 40ft High Cube container stuffing to maximize shipping cube utilization while protecting powder-coated finishes.
In-depth technical answers addressing load certification, ocean freight logistics, seismic adaptations, and anti-corrosion specifications for international procurement executives.