400KG/Tier
5/6 Layer Heavy Light Duty Steel Warehouse Rack Adjustable Industrial Shop Storage 400kg Garage Metal Workshop Shelf
Q235B Steel
Adjustable Pitches
30,000 m²
Guangzhou Production Hub
30,000 T
Monthly Cold-Forming Capacity
10,000+
Global Warehousing Deployments
CE • ISO
9001:2015 & RoHS Certified
Engineered Medium-Duty Storage Solutions
Our cold-formed profile shelving spans capacities from 150 kg to 800 kg per tier, bridging the manual picking spectrum from e-commerce sortation to automotive assembly.
Integrated Display
Mracking Durable Warehouse Supermarket Heavy-duty Shelving Equipment Retail Store Display Racks Customized 1000-5000kg Per Layer
High-Rigidity Beam
Heavy Loading
200-500KG
Boltless Metal Shelving 4 Tier Steel Storage Racks Medium Heavy Duty 200KG 300KG 500KG Load Corrosion Resistant Warehouse Shelf
Boltless Rivet
Anti-Corrosion
Longspan
Industrial Medium Duty Longspan Shelving with Starter and Add-on Unit, Adjustable Warehouse Storage Rack for Logistics
Starter/Add-on
Logistics Pick Face
Selective Hybrid
Selective Pallet Shelving Industrial Medium Heavy Duty Shelf Warehouse Rack Multi Level Shelf
Multi-Tier Pick
Step Beam Profile
Modular Light/Medium
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Rapid Assembly
Detachable Frame
Wire Deck Mesh
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Fire Sprinkler Compliant
Ventilated Deck
Boltless Rivet
5 Layer 150kg Capacity Per Shelf Adjustable Powder Coated Steel ODM Boltless Rivet Medium Duty Rack Supermarket Storage Shelving
Interlocking Lock
ODM Custom Sizing
Industrial Medium-Duty Shelving: Load Dynamics & Metallurgical Integrity
Medium-duty racking systems, commonly specified across intermediate intralogistics channels, operate within a standard working load range of 200 kg to 800 kg per shelf tier (Uniformly Distributed Load - UDL). When sourcing industrial racking directly from Chinese manufacturers, procurement directors must evaluate yield limits, cold-roll hole geometries, and surface passivations to ensure continuous compliance with EN 15512:2020 and RMI (Rack Manufacturers Institute) MH16.1 international structural standards.
Critical Manufacturing Insight: Guangzhou Heda Shelves utilizes certified Q235B high-tensile structural steel. Through cold-roll forming, our butterfly-hole and teardrop uprights undergo continuous edge-stiffening, resisting localized torsional buckling under maximum rated manual-picking live loads.
Structural Profile & Beam Matrix Comparison
Selecting between Step Beam longspan configurations and boltless post-formed rivet structures dictates warehouse picking throughput and structural deflection resistance. The table below outlines our standard engineering tolerances:
| System Architecture | Typical Payload / Level | Upright Column Profile | Decking Substrate Options | Primary Industrial Use-Case |
|---|---|---|---|---|
| Longspan Starter / Add-on | 300 kg – 800 kg UDL | 55 × 47 × 1.5mm Ω-profile | Galvanized Steel / 18mm Plywood / Wire Mesh | Heavy B2B distribution, machinery components, 3PL |
| Boltless Rivet Rack | 150 kg – 350 kg UDL | 38 × 38 × 1.2mm Angle steel | MDF Board / Pre-lacquered metal plate | E-commerce bin storage, workshop spares, retail |
| Medium-Duty Multi-Tier | 250 kg – 500 kg UDL | 60 × 50 × 1.8mm Punch post | Ribbed structural steel decking / Perforated plate | High-cube mezzanines, vertical picking towers |
| Wire Decking Shelving | 200 kg – 450 kg UDL | Round Tube / Tubular Upright | 50 × 50mm welded wire mesh, chrome/powder | Cold rooms, pharmaceutical storage, ESFR sprinkler compliance |
All load ratings require strict adherence to the L/200 deflection limit criterion, meaning the maximum allowable downward deflection across the horizontal beam span must never exceed 0.5% of total clear beam length under full working conditions.
Future Procurement & Development Trends in Industrial Storage
As automated supply chains and variable-rate e-fulfillment advance globally, medium-duty shelving is evolving beyond static boltless framework.
1. AMR & AGV Pick-Face Compatibility
Medium-duty racking is increasingly hybridized to interface with Autonomous Mobile Robots (AMRs). Future procurement specifications prioritize wider clear-bay base plates, reinforced ground anchorages, and standardized bottom beam elevations that accommodate robot dock-under and pallet jack sweep maneuvers without damaging vertical frames.
2. Nanotech Powder Pre-Treatments
Conventional iron-phosphating lines are being phased out by Tier-1 Chinese manufacturers in favor of silane-zirconium conversion coatings. This cold-spray technology increases the ASTM B117 salt spray resistance of powder-coated steel from 240 hours to over 720 hours, mitigating coastal atmospheric corrosion across Arabian Gulf and Southeast Asian logistics hubs.
3. Modular Multi-Tier Mezzanine Integration
Rising cubic foot warehouse lease costs compel operators to utilize 6-meter to 10-meter ceiling clear heights. Shelving systems must feature pre-engineered punched connections ready to accept catwalk brackets, fire-retardant structural steel walkways, and vertical goods lifts without requiring structural welding on-site.
Enterprise Trust & OEM Authority
Why Global Supply Chains Trust HEDA Shelves
Founded in 2001 in Guangzhou, China, Guangzhou Heda Shelves Co., Ltd. has grown into an international leader in heavy and medium-duty racking systems, shipping to more than 120 countries across the Middle East, Southeast Asia, the Americas, and Europe.
Unlike trading intermediaries, HEDA controls 100% of the manufacturing pipeline inside our dedicated 30,000 square meter factory. Producing over 30,000 tons of structural racking per month, our 300+ member engineering team guarantees exact metallurgical grade traceability, consistent cold-roll thickness, and seamless OEM/ODM integration.
- ✓ Turnkey Layout Optimization: Complimentary 2D CAD & photorealistic 3D structural simulations.
- ✓ Traceable Certifications: CE Certificate No. 2435-CPR-8605159, ISO 9001:2015, and RoHS.
- ✓ Extreme Climate Resilience: 10-step surface finishing suited for hot, arid, or coastal Gulf zones.
- ✓ Containerized Export Packaging: Numbered, strapped bundle packs aligned with isometric install blueprints.
Our 30,000 m² automated continuous cold-bending and electrostatic spraying facility in Guangzhou.
Frequently Asked Questions: Sourcing Medium Duty Shelving
Clear, engineering-backed answers addressing loading limits, import logistics, seismic design considerations, and factory QA.
What is the definitive load capacity boundary between Light, Medium, and Heavy Duty Shelving?
Under industrial racking standards (SEMA / RMI / FEM), Light Duty refers to shelving designed for loads below 150 kg per level, typically used for small components and light retail carton boxes. Medium Duty Shelving encompasses uniformly distributed loads ranging from 200 kg to 800 kg per level, relying on step beams, heavy butterfly or teardrop pitch uprights, and drop-in steel or timber decks. Storage requirements exceeding 1,000 kg up to 5,000 kg per beam level necessitate full-scale Heavy Duty Selective Pallet Racking engineered around structural box beams and forklift handling aisles.
What steel grade does HEDA Shelves utilize, and how is beam safety factor verified?
We manufacture our upright columns and horizontal load beams using certified Q235B structural carbon steel, sourced directly from premier Chinese domestic mills (Baosteel, Shougang). Mill test certificates (MTC) confirm chemical composition, carbon equivalent, and tensile yield strengths (≥235 MPa). Our racking design safety factors conform to EN 15512:2020 guidelines, utilizing a minimum structural safety factor of 1.5 to 1.65 under ultimate limit state (ULS) load testing.
Can medium-duty shelving units be converted into multi-tier mezzanines later?
Yes, provided the system is initially planned with that expansion in mind. To convert ground-level longspan shelving into a two- or three-tier shelving-supported mezzanine floor, the bottom uprights must be sized with adequate axial load reserves to bear upper-deck pedestrian dead loads (typically 300–500 kg/m²) and stairway loads. If you plan to expand vertically within 1–3 years, inform our engineering department during initial CAD layout generation so we can specify reinforced column profiles (1.8mm to 2.0mm thickness) and custom floor bracket slots.
How does HEDA prevent rust and surface degradation in high-humidity or coastal desert climates?
Every steel component passes through an automated 10-step surface finishing line: degreasing, ultrasonic water rinsing, acid pickling to eliminate mill scale, secondary rinse, neutral phosphate surface passivation, dry-off bake, automated robotic electrostatic powder application (epoxy-polyester hybrid), and 200°C curing. For salt-laden coastal conditions (such as Jebel Ali, Jeddah, or Singapore), we offer optional zinc-rich primer pre-coatings or hot-dip galvanization to exceed standard ASTM B117 salt fog endurance thresholds.
What are the differences between Starter Units and Add-on Units in longspan shelving?
A Starter Unit consists of two complete vertical upright frames connected by horizontal load beams, forming an autonomous, freestanding bay. An Add-on Unit features only one upright frame; its beams lock directly into the shared upright of the starter unit. Utilizing starter-plus-addon runs saves project steel costs, minimizes intermediate footprint loss, and streamlines run stability. However, an add-on unit cannot stand independently without connecting to a starter frame.
What engineering documentation is supplied to assist with local municipal or fire authority permits?
HEDA Shelves supplies a complete engineering file for municipal submittals (such as UAE Civil Defense, Saudi Civil Defense, or European building control). This includes stamped structural calculation sheets, 2D floor layouts indicating sprinkler flue clearance channels (transverse and longitudinal), maximum leg-load slab distribution values, certified load capacity warning plaques, and copies of CE (EN 1090 / Construction Products Regulation) and ISO 9001:2015 factory registration credentials.
What is standard manufacturing lead time and export packaging protocol for 40ft HQ containers?
Standard production turnaround for standard longspan and boltless orders (1 to 5 x 40ft HQ containers) is 15 to 20 working days from drawing sign-off. Upright frames and beams are bundle-strapped with protective corrugated buffer board, heavy-gauge plastic stretch wrap, and steel strapping over wooden dunnage blocks to eliminate maritime transit scuffing. Each bundle carries an itemized alphanumeric tag keyed directly to the project's 3D installation manual.
Accelerate Your Storage Efficiency with Factory-Direct Engineering
Whether you need 20 bays of longspan shelving for an industrial workshop or a 5,000-square-meter e-commerce fulfillment layout, consult directly with HEDA's technical sales engineers today for complimentary CAD floorplans, 3D renderings, and transparent FOB/CIF pricing.