Hand Crank Telescopic Cantilever Storage Rack
Mechanical crank arms extend 100% horizontally for direct overhead crane loading of steel tubes, bars, and extrusions.
Direct factory fabrication conforming to EN 15512, RMI MH16.1, and AS 4084 specifications. Tailored structural profiles engineered with certified Q235B and Q355B structural grade steel.
Mechanical crank arms extend 100% horizontally for direct overhead crane loading of steel tubes, bars, and extrusions.
Maximizes vertical building envelope up to 15 meters with aisle widths compressed down to 1.6m for wire-guided turret trucks.
Heavy duty barrel beams and custom saddle brackets designed for high-capacity radial tyre and wheel rim inventory security.
Continuous inclined roller tracks with speed-braking rollers ensure automatic rotation for rapid FMCG and perishable inventory turnover.
Motorized floor-track bogies collapse idle aisles into one moving operational channel, doubling physical storage density in high-cost plants.
Standard North American teardrop pattern punched uprights providing modular 2-inch vertical adjustments and toolless spring-lock pin beams.
Ultra-rigid structural rack-supported or clad-rack framework designed for autonomous stacker crane runs up to 30 meters with WCS/WMS interfaces.
Hot-dip galvanized, nestable steel stacking stillages that eliminate floor anchor drilling inside temperature-sensitive cold store insulation slabs.
Industrial warehouse racking represents the physical skeleton of modern global supply chains. For export-oriented manufacturing plants, cross-dock logistics centers, and cold-chain distributors, procuring steel storage infrastructure from China requires verified engineering accountability, stringent metallurgical certification, and validated FEA (Finite Element Analysis) load profiles.
Headquartered in Guangzhou, HEDA Shelves (Guangzhou Heda Shelves Co., Ltd.) has engineered and fabricated heavy-duty warehouse storage systems since 2001. Operating across a centralized 30,000 m² smart manufacturing facility staffed by 300+ technical personnel and fabrication specialists, our rolling lines maintain a capacity exceeding 30,000 metric tons per month. Every structural member—from omega-profile upright columns to box-welded step beams—undergoes computerized roll-forming, automated continuous seam welding, and multi-stage chemical passivation.
| Mechanical Property | Standard Grade (Q235B) | High-Load Grade (Q355B) | Cold-Formed EN 15512 |
|---|---|---|---|
| Yield Strength ($R_e$) | ≥ 235 MPa | ≥ 355 MPa | Validated via Tensile Coupon |
| Tensile Strength ($R_m$) | 370 – 500 MPa | 470 – 630 MPa | Conforms to Mill Cert |
| Elongation ($A_5$) | ≥ 26% | ≥ 22% | Prevents Brittle Fracture |
| Beam Deflection Limit | $L / 200$ (Standard) | $L / 250$ to $L / 300$ | Zero Plastic Deformation |
| Surface Treatment | Epoxy Powder / Silane | Dual Epoxy + Polyester | Hot-Dip Galv (ISO 1461) |
| Seismic Acceleration ($a_g$) | Designed to 0.15g | Engineered ≥ 0.40g | Site-Specific Spectrum Calc |
*Deflection and stability criteria calculated according to FEM 10.2.02 (European Racking Code) and RMI Specification MH16.1 (Specification for the Design, Testing and Utilization of Industrial Steel Storage Racks).
Structural warehouse racking procurement is shifting from commoditized steel purchasing to comprehensive life-cycle engineering, regional supply chain risk hedging, and automated intralogistics alignment.
Global supply chain leaders no longer compare suppliers based solely on raw steel per-kilogram quotes. Modern procurement protocols evaluate "Total Landed Installed Cost" (TLIC)—factoring in container volumetric cube packaging efficiency, nested beam nesting geometries that save 25% ocean freight, pre-punched connector tolerances that reduce local installation man-hours by 30%, and certified steel grade compliance that eliminates local permitting delays.
Skyrocketing greenfield industrial land costs have driven warehouse operators away from standard static selective racking toward hybrid automated solutions. Multi-tier rack-supported mezzanines, electric mobile chassis, and radio shuttle racking systems are now routinely retrofitted into existing brownfield buildings. Buyers require racking designs engineered to withstand dynamic kinetic braking loads and repetitive shuttle cycles without structural fatigue.
Global buyers operating across seismic belts (Pacific Rim, Southeast Asia, Southern Europe) and tropical high-humidity zones demand site-specific structural load designs. Off-the-shelf catalog racks are giving way to parametrically engineered systems featuring oversized footplates, calibrated ductile diagonal bracing, heavy-duty floor expansion anchor configurations, and salt-mist pre-treatments formulated for coastal ambient humidity.
Institutional investors, warehouse insurance underwriters, and enterprise tier-one clients demand ironclad quality documentation. Importers now mandate authentic factory-direct EN 10204 Type 3.1 steel inspection documents, verified ISO 9001:2015 quality control traceability from coil unrolling to dispatch, CE Construction Products Regulation (CPR) compliance, and toxic metal-free powder chemical formulations satisfying RoHS directives.
From basic hot-rolled structural angles to modern cold-formed multi-bend omega profiles, warehouse racking engineering has transformed into an advanced branch of structural thin-walled steel mechanics.
Early generation storage racks utilized simplistic C-channel sections prone to torsional-flexural buckling under eccentric horizontal fork impact. Modern HEDA upright columns are cold-formed through up to 24 sequential progressive roller dies into an intricate multi-bend Omega geometry. By relocating structural steel volume toward the extreme cross-sectional fibers, moment of inertia ($I_x$, $I_y$) is multiplied by up to 38% without adding net steel deadweight. This geometry withstands localized forklift scuffs while safely supporting bay loads surpassing 24,000 kilograms at heights exceeding 12 meters.
In modern rack design, horizontal beams do not function as ideal pinned joints or rigid welded nodes; they behave as semi-rigid elastoplastic connections defined by moment-rotation ($M-\theta$) response curves. Our cold-stamped 4-claw and 5-claw high-tensile connection brackets integrate tight-tolerance locking pins capable of absorbing vibrational shock and micro-torsion. Under cyclic seismic sway, this engineered semi-rigidity dissipates destructive kinetic energy through controlled joint rotation, preventing instantaneous structural collapse and safeguarding personnel.
The intralogistics transition from human forklift operators to Autonomous Mobile Robots (AMRs), Automated Guided Vehicles (AGVs), and high-speed automated storage stacker cranes necessitates unprecedented fabrication accuracy. In an AS/RS high-bay installation, cumulative vertical plumb deviation across a 30-meter mast cannot exceed 1.5mm. HEDA employs computerized multi-punch column indexing tables, robotic precision welding cells, and laser-guided leveling baseplates to guarantee the sub-millimeter tolerances mandatory for autonomous sensor guidance.
Integrated in-house production ensures structural reliability at every stage of the manufacturing cycle, avoiding quality variances caused by outsourced processing.
High-tensile certified steel coils verified for tensile yield, chemical composition, and gauge thickness.
Automated high-speed rotary shears cut steel rolls into micro-calibrated strip widths with zero edge burr.
Computer-controlled continuous mechanical presses punch standardized 50mm, 75mm, or teardrop patterns.
20+ station heavy rolling mills shape multi-flanged upright profiles with zero internal residual stress.
Dual interlocking C-profiles are continuously welded into rigid structural box beams for maximum load support.
Automated multi-axis robotic welders bond multi-claw connector brackets using CO2/Argon shielding gas.
Complete surface immersion pickling and phosphating removes all grease, scale, and oxide layers.
Dual-reciprocator powder booths coat components, cured at 200°C for a scratch- and impact-resistant finish.
Random batch sampling verifies connector tolerances, pin interlock safety, and beam deflection under test loads.
Custom steel dunnage, protective corner cards, and container-optimized bundling prevent ocean transit damage.
Eliminating middleman trading markup while giving project developers direct access to manufacturing engineers and verifiable compliance documentation.
Certificate No. 2435-CPR-8605159. Full compliance with EN 15512 and EU Construction Products Regulation (CPR) for structural steel execution class.
Certificate No. 18624Q00169R0M. Comprehensive, audited quality management across layout design, raw material sourcing, rolling, and delivery verification.
Non-toxic TGIC-free thermosetting powder formulas that meet strict international environmental safety requirements for food, beverage, and medical storage facilities.
Need a third-party mill test report, seismic structural calculation packet, or a custom container loading simulation for your overseas tender?
Contact UsCritical answers to essential questions regarding structural standards, international shipping mechanics, surface longevity, and seismic site design.
Our structural engineering team develops customized finite element models according to the project's exact geographic coordinate and spectral response acceleration parameters (Ss, S1 under IBC 2024 / Eurocode 8). Upright post profiles, bottom baseplate thickness (ranging from 6mm to 16mm), anchor bolt diameters, and horizontal-diagonal cross-bracing configurations are engineered to absorb localized lateral dynamic ground accelerations without buckling.
In standard sub-zero chillers (-5°C to -30°C), standard powder coatings can become brittle or experience moisture delamination due to freeze-thaw condensation cycles. We recommend continuous hot-dip galvanizing (HDG) conforming to ISO 1461, achieving a minimum zinc coating thickness of 65–85μm, or our specialized low-cure cold-chain polyester powder formula applied over chemical zinc phosphate pre-treatment to permanently eliminate micro-flaking.
To provide an accurate, code-compliant proposal within 24–48 hours, our design office requires: (1) Warehouse architectural drawings showing clear heights, internal column spacing, dock door locations, and fire exit clear zones; (2) Unit load specifications (pallet width, depth, height, and maximum gross weight including pallet); (3) Forklift operational parameters (type, minimum turning radius, maximum mast reach height); and (4) Throughput requirements (FIFO or LIFO).
International maritime logistics exposes steel structures to dynamic rolling stresses, humidity, and shifting loads. HEDA bundles upright columns and beams using high-tensile steel banding, corrugated paper cushioning strips, and multi-layer moisture-resistant PE stretch film. Step beams are nested back-to-back to maximize 40HQ container volumetric efficiency (often exceeding 24 metric tons per container) while custom wooden dunnage prevents metal-to-metal transit friction.
Yes. A large share of our export manufacturing involves structural frameworks custom-fabricated for third-party automated guided vehicles (AGVs), Autonomous Mobile Robots (AMRs), automated storage and retrieval systems (AS/RS), and radio shuttles. We construct rails, dynamic entry funnels, precision docking sensors, and structural tie-backs engineered to mechanical tolerances within ±1.0mm.
For standard selective pallet racking orders comprising 3 to 10 ocean containers (approx. 5,000 to 15,000 pallet positions), our typical factory manufacturing cycle is 15 to 20 working days following final approved CAD drawings. For complex custom automated AS/RS high-bay projects requiring specialized tooling or extensive hot-dip galvanizing, lead times generally range between 25 and 35 calendar days.
Whether planning a regional distribution center, upgrading a cold-storage facility, or expanding industrial manufacturing output, our engineering team is ready to assist. Submit your layout specifications, floor dimensions, or tender document to receive complimentary 2D CAD layouts, 3D parametric renderings, and competitive factory-direct pricing.
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