Custom OEM Heavy Load Racking Supplier & Exporter

Precision Engineering, Superior Structural Integrity & Global Industrial Storage Integration

Corporate Profile & Manufacturing Footprint

Shenzhen Runda Racking Manufacturing Co., Ltd. - Empowering global logistics with heavy-duty structural engineering solutions.

35,000㎡
State-of-the-Art Plant
Scale-driven manufacturing space supporting continuous cold-rolling, punching, and automated coating lines.
$28M
Annual Export Turnovers
Supplying critical racking infrastructure to North America, Western Europe, Southeast Asia, and the Middle East.
1,200+
Supply Chain Partners
Vetted upstream raw material suppliers ensuring high-grade Q235B and Q355B structural steel consistency.
18 / 35
R&D / QC Specialists
Expert structural engineers executing Finite Element Analysis (FEA) alongside strict full-process quality audits.

Established in 2015, Shenzhen Runda Racking Manufacturing Co., Ltd. is a premier manufacturer specializing in heavy-duty industrial shelving and high-density warehouse storage systems. With over 11 years of deep industry expertise and 9 years of active global export experience, we deliver tailored racking systems to logistics hubs, distribution centers, and manufacturing plants worldwide.

We offer comprehensive OEM/ODM and full custom manufacturing services, including tailored load capacities, custom dimensions, corrosion-resistant powder coatings, and specialized seismic structural designs. Supported by our experienced international trade background, Shenzhen Runda provides seamless end-to-end service, from technical layout design to reliable global shipment execution. Quality and innovation drive our core philosophy. We maintain strict quality control through full-process sampling inspection, raw material stress testing, and load-bearing verification, backed by a dedicated team of 35 QC professionals.

Advanced Manufacturing Pipeline

An in-depth visualization of our 17 production steps, showing the engineering detail that goes into every heavy-duty component.

ISO 9001 Line

Full Traceability of Steel Profiles

Raw Materials Raw Materials
Laser Cutting Laser Cutting
Bending Bending
Punching Punching
Part Processing Part Processing
Welding Welding
Grinding Grinding
Surface Treatment Surface Treatment
Automatic Painting Automatic Painting
Inspecting Inspecting
Warehouse Warehouse
Loading Loading
Punching Machine Punching Machine
Laser Cutting Machine Laser Cutting Machine
Bending Machine Bending Machine
Automatic Painting Line Automatic Painting Line
Precision Structural Testing Quality Verification

Technical Whitepaper: Heavy Load Racking Dynamics

Understating structural deflection, seismic calculations, and optimization strategies for high-density modern industrial warehouses.

1. Macro Industry Paradigm & Global Warehousing Demand

Modern supply chains require maximum storage density. Real estate costs, rapid ecommerce expansion, and the growth of 3PL providers have changed how distribution centers are planned. Warehouses now build upward rather than outward, making high-bay configurations (from 12 to over 40 meters) the industry standard. High bay systems demand racking with tight dimensional tolerances and reliable structural strength.

Heavy-duty storage systems must support heavy loads, often exceeding 3,000 kg per level, under dynamic operating conditions. Industrial operations require designs that account for forklift impacts, asymmetrical loading, and continuous cycling. As a result, companies need custom OEM designs that fit their exact building profiles, handling machinery, and regional code compliance.

SEO Insight & Information Gain: Standard warehouse planning often underestimates cumulative loads. A typical 6-tier pallet bay carrying 1,500 kg per pallet exerts a downforce of over 18 metric tons on a single frame baseplate. Underestimating baseplate deflection and soil loading can lead to concrete cracking and structural failure. Shenzhen Runda uses Finite Element Analysis (FEA) to simulate these stresses before fabrication starts.

High-Bay Storage Finite Element Analysis (FEA) High Density Racking 3PL Integration

2. Metallurgical Properties & Structural Safety Standards

We build our heavy load racking systems using high-tensile structural steel, primarily Q235B and Q355B grades. These steels are selected for their yield strength, ductility, and weldability. They perform reliably in seismic zones and sub-zero cold-storage facilities alike.

Cold-rolled structural steel profiles receive precise, computer-controlled punching to ensure consistent load distribution. Main structural standards and calculations include:

  • FEM 10.2.02: European Code of Practice for the Design of Static Steel Pallet Racking.
  • EN 15512: Steel static storage systems - Adjustable pallet racking systems - Principles for structural design.
  • ANSI/RMI MH16.1: Specification for the Design, Testing and Utilization of Industrial Steel Storage Racks (North America).
Steel Grade Yield Strength (MPa) Tensile Strength (MPa) Elongation (%) Typical Applications
Q235B ≥ 235 370 - 500 ≥ 26 Standard pallet beams, bracing, medium-duty shelving
Q355B (High-Tensile) ≥ 355 470 - 630 ≥ 22 Heavy-duty upright frames (>15T cap), seismic bases
Galvanized Coil (Z275) ≥ 250 320 - 400 ≥ 28 Outdoor storage, high-humidity, cold-storage environments

3. OEM Customization & Adaptive Engineering Options

Shenzhen Runda operates as a direct OEM and ODM supplier, matching customer specifications for system layout, material handling equipment, and load patterns. Custom adjustments include:

  • Profile Adjustments: Customizing upright dimensions (e.g., 90*70, 100*80, 120*95 mm) and metal thicknesses (1.8mm to 3.0mm) to optimize load capacities and structural weight.
  • Custom Connector Layouts: Utilizing 3-hook or 4-hook beam connectors with safety locks to reduce structural play and secure the beam-to-column joint.
  • Finishes: Epoxydic polyester powder coatings applied via electrostatic spray at over 200°C for wear and chemical resistance, or hot-dip galvanization for corrosive environments.

Localized Applications & Seismic Compliance

Engineering customized safety configurations tailored to regional climates, geological activity, and specific operational layouts.

North American Seismic Layouts

Design configurations compliant with IBC (International Building Code) and RMI guidelines. These configurations feature wider, heavy-duty floor baseplates, thick dynamic floor anchor bolts, and dual-direction bracing to absorb lateral seismic forces in highly active geological zones.

European Cold Chain Logistics

Specially designed for sub-zero food and pharmaceutical cold storage. These systems employ impact-resistant steel and specialized coatings that prevent cracking at low temperatures, ensuring long-term structural integrity inside large freezers.

High-Density Urban Mezzanines

Optimized for space-constrained warehouses in major urban hubs across Europe and Asia. Multi-tier mezzanine installations double storage efficiency by combining overhead bulk pallet racking with lower-level order picking platforms.

Global Compliance, Trade Certification & Logistics Execution

Exporting industrial systems requires more than manufacturing capability. Compliance with international standards is essential. Shenzhen Runda handles the entire engineering chain, including structural drawings, container loading optimization, and custom clearance documents. Every shipment is organized to prevent surface damage to powder coatings during transport.

We work with international testing agencies like SGS and TÜV to audit load capacity ratings, weld quality, and coating thickness. Our engineering team provides detailed 3D installation layouts and video guides, ensuring swift, compliant setup at the final destination.

Technology Roadmap & Future Outlook (2025-2030)

Looking ahead, the racking industry is moving toward smarter, more sustainable designs. Our current research focuses on:

  • AS/RS Optimization: Designing racking frames with minimal structural deflection to work seamlessly with high-speed automated cranes, shuttle carts, and sorting systems.
  • Embedded IoT Deflection Sensors: Developing smart column bases that monitor real-time loading stresses, frame drift, and impact damage, warning managers of structural issues.
  • Eco-Friendly Green Steel & Production: Upgrading powder coating and pre-treatment lines to reduce emissions, helping global buyers meet ESG compliance goals.

Technical Q&A / Deep FAQ

Technical details, safety margins, and structural requirements for procurement managers and design engineers.

What is the standard deflection limit for heavy-duty pallet racking beams under full load?
According to standard RMI and EN 15512 specifications, the vertical deflection limit for racking beams under static load is L/200, where L is the clear span of the beam. For example, for a 2700mm beam, the maximum allowable deflection under safe loading is 13.5mm. For automated crane storage (AS/RS), tolerances are tighter, often requiring deflection limits of L/300 or L/400.
How does Shenzhen Runda ensure steel quality and chemical profile accuracy?
Every batch of steel coil from our upstream suppliers arrives with Mill Test Certificates (MTC) showing chemical and physical properties. We perform independent tensile, yield, and elongation testing in our own facilities. We confirm that carbon, manganese, phosphorus, and sulfur content matches Q235B and Q355B standards before production begins.
What surface treatment options are available for highly humid or cold storage applications?
For humid, coastal, or sub-zero environments, we offer hot-dip galvanizing (HDG) per ISO 1461, yielding a zinc thickness of 60 to 80 microns. Alternatively, we apply a dual-layer epoxy-polyester powder coat with a zinc-rich primer base, providing excellent corrosion protection and durability.
How is seismic design handled for zones prone to earthquakes?
We adjust bracing layouts and baseplate sizes based on local seismic ratings (acceleration coefficients). We use wider baseplates with double anchoring holes to distribute energy, along with oversized diagonal and horizontal bracing in the upright frames. This reduces frame drift and prevents collapse during seismic events.
Can you support dynamic load simulation tests for custom designs?
Yes, our 18 structural R&D engineers use ANSYS and SolidWorks Simulation to run Finite Element Analysis (FEA) on custom structures. We evaluate stresses, buckling points, structural load limits, and forklift impact points before making actual prototypes. Physical loading tests are also conducted inside our factory to verify calculations.
What is the standard lead time for customized industrial orders?
For standard profile sizes, our lead time is 20 to 25 days from drawing sign-off. For customized OEM sizes or heavy structural systems requiring custom tooling, lead times range from 30 to 45 days. We coordinate production schedules to ensure steady shipping flows for large-scale operations.