Stacking Racks & Shelves: Medium-Duty Warehouse Systems (100–300KG)

Premium OEM/ODM Storage Solutions Engineered for Structural Safety, Peak Spatial Efficiency, and Rugged Durability in Global Industrial Intralogistics.

Featured High-Performance Medium & Heavy Duty Racks

Engineered load profiles up to 500KG per shelf tier. Optimized structural stability utilizing high-tensile Q235B cold-rolled steel structures.

Bestselling Heavy-Duty Pallet Rack

Bestselling Heavy-Duty Pallet Rack for Warehouses 500 kg Capacity Galvanized Surface Treatment OEM/ODM Supplier

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RunDa Single-Sided Heavy Duty Warehouse Racks

RunDa 35# Single-Sided Heavy Duty Warehouse Racks Customized 500kg Capacity Stable Shelves

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Bestselling Heavy-Duty Warehouse Shelf

Bestselling Heavy-Duty Warehouse Shelf 500 kg Capacity with Scale Popular for Storing Weights and Burdens

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500kg Heavy Warehouse Shelf Storage

500kg Heavy Warehouse Shelf Hardware and Oil Can Be Put Storage Shelf

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Bestselling Heavy-Duty 500 kg Warehouse Shelf

Bestselling Heavy-Duty 500 kg Warehouse Shelf for Storage Pallet Packing OEM/ODM Supplier Cargo & Storage Equipment

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500kg Customized Heavy Duty Warehouse Racks

500kg Customized Heavy Duty Warehouse Racks and Factory Stable Shelves RunDa 35# Rack

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RD Heavy Duty 5-Tier Storage Rack

RD Heavy Duty 5-Tier Q235B Steel Storage Rack Corrosion Protection 200kg/300kg/500kg Capacity Powder Coated for Home Industrial

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Industrial Warehouse Rack CE

Industrial Warehouse Rack 300-1000kg CE High Efficiency Stacking Shelves

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Structural Intelligence: The Architecture of Modern Medium-Duty Shelving

In modern supply chains, the efficiency of intralogistics is highly dependent on racking infrastructure. Medium-duty warehouse shelves rated for 100kg to 300kg loading capacities serve as a critical bridge. They fill the operational gap between light-duty retail shelving and heavy-duty, pallet-focused racking systems. These systems are carefully engineered to support loose, boxed, or medium-bulk goods that require quick manual picking or semi-automated retrieval.

As global e-commerce and micro-fulfillment centers expand, warehouse managers are looking for systems that balance load capacity, footprint utilization, and structural flexibility. Rather than using fixed-weld structures that limit layout modifications, modern facilities use modular, boltless racking systems. These can be easily adapted to changing stock profiles. Selecting a storage system is no longer just about buying steel shelves; it requires analyzing load dynamics, mechanical safety tolerances, and overall configuration design.

Information Gain: Beyond Static Load Capacities

Typical weight ratings only reflect static uniform distributed loads (UDL). In actual warehouse environments, forces like seismic activity, accidental forklift impacts, and uneven load distribution create dynamic stresses. This section explains the key mechanical features that prevent structural failure under load, highlighting why material grade selection and precise component forming are essential for high-performance warehouses.

25,000㎡
Production Facility Area
10+ Years
Racking R&D Expertise
$18M+ USD
Annual Export Volume
28 Specs
QC Inspection Officers

Global Industry Trends & Tech-Driven Intralogistics

Industrial warehousing is undergoing a significant transition. Supply chains are shifting from traditional bulk storage to high-velocity, multi-SKU fulfillment networks. This change is driven by several key developments:

  • SKU Proliferation and Vertical Utilization: High urban real estate costs require operations to maximize vertical space. Medium-duty racking allows storage configurations to safely reach higher levels, utilizing mezzanine systems and integrated cat-walks.
  • Integration with Automation: Standardized 100-300kg shelving systems are increasingly used alongside AMR (Autonomous Mobile Robots) and AGV (Automated Guided Vehicles) setups. Accurate manufacturing tolerances ensure these automated systems run smoothly without hang-ups.
  • Modular Versatility: Modern business models require agile logistics setups. Racking systems must be easy to assemble, disassemble, and reconfigure without specialized hot-work or welding. Boltless, wedge-lock beam connectors allow quick adjustments to shelf heights in 50mm increments.

Material Science, Safety Standards & Compliance

The strength of a racking system depends on its base material. DirectRack uses certified Q235B steel, a low-carbon structural alloy known for its excellent ductility, weldability, and yield strength. Our structural components undergo precise cold roll-forming to ensure uniform material thickness and profile integrity, preventing premature buckling.

AS4084 & OSHA Compliance

Structural calculation profiles comply with AS4084-2012 (Steel Storage Racking) and OSHA regulations, ensuring safe workplace operations.

Custom OEM/ODM Engineering

35 senior R&D engineers develop dynamic load-calculation models, offering custom depths, heights, and anti-seismic bracing options.

Advanced Surface Coatings

Electrostatic powder coatings provide superior protection against scratches, impacts, moisture, and chemical exposure.

Safety in warehouse operations requires clear load limits and stable racking configurations. To ensure long-term structural integrity, our standard product quality controls include:

  • Deflection Limit Ratios: Standard designs maintain a beam deflection limit of L/200 (where L is the beam length), ensuring there is no visible bowing under full capacity.
  • Structural Redundancy: Upright profiles and box-beam connections are designed with a safety factor of 1.5 to 1.8, protecting against accidental overloading.
  • Certified Weld Quality: We use carbon dioxide gas-shielded welding to create clean, high-strength connections that withstand constant stress.

China Factory 4.0: Supply Chain Resilience & Manufacturing Excellence

Located in Dongguan, our 25,000-square-meter facility combines automation with strict quality control to deliver high-quality storage solutions globally.

About Dongguan Dingguan Metal Products Co., Ltd. (DirectRack) > Founded in 2016, Dongguan Dingguan Metal Products Co., Ltd. (DirectRack) is a technology-driven warehouse equipment enterprise located in Dongguan, Guangdong Province. Leveraging 10 years of industry expertise and 8 years of international export background, the company operates a state-of-the-art manufacturing plant covering 25,000 square meters of building area. Our annual export revenue consistently exceeds $18 million USD, supplying premium steel storage systems to worldwide logistics networks.

Quality Assurance & Testing Standards > DirectRack maintains strict quality governance enforced by 28 specialized QC inspectors. Our quality control framework adheres to international AS4084 and OSHA safety standards. Our standard product inspection methods include X-ray weld seam analysis, coating thickness measurement via magnetic gauge, column compression destruction tests, and full-scale beam deflection loading tests to ensure zero-defect delivery.

Global Trade & Supply Chain > Utilizing a seamlessly integrated OEM/ODM trade background, DirectRack has established strategic alliances with 650 supply chain partners across raw steel sourcing and automated surface treatment industries. Our primary export markets include Southeast Asia, the Middle East, and South America. Our main client types range from retail distribution facilities and automotive parts warehouses to commercial FMCG wholesale hubs.

R&D & Customization Capabilities > Innovation is at the core of our business model. Spearheaded by 35 senior R&D engineers, DirectRack provides dynamic structural calculation models and fully bespoke modular storage designs. Our custom options feature customizable shelf depth/height ratios, multi-tier mezzanine configurations, anti-seismic bracing, and custom RAL color palettes. In the previous year, we successfully introduced 42 new product designs to meet evolving automated warehouse demands.

Comprehensive Production & Machinery Workflow

Our production processes are fully integrated, tracking quality from raw coil receiving to automated welding and final powder coating.

Raw materials DirectRack
Raw materials
Bending Process
Bending
Forming Process
Forming
Welding Process
Welding
Shot-blasting Process
Shot-blasting
Spray molding Process
Spray molding
Finished products DirectRack
Finished products
Forming machine DirectRack
Forming machine
Punching machine DirectRack
Punching machine
Mash welding machine DirectRack
Mash welding machine
Welding machine DirectRack
Welding machine
Shearing machine DirectRack
Shearing machine
Bending machine DirectRack
Bending machine
Automatic welding machine DirectRack
Automatic welding machine
Shot-blasting machine DirectRack
Shot-blasting machine
Spray molding line DirectRack
Spray molding line
Sawing machine DirectRack
Sawing machine

Localized Application Scenarios & Storage Engineering

Medium-duty shelves rated at 100-300kg are versatile systems used in various industrial environments. Their design allows for efficient storage across different configurations:

Automotive Components & Spare Parts

Heavy steel components, gearboxes, and brake discs require stable, compact storage. The 300kg tier rating prevents shelf deformation and supports secure high-density stacking.

E-Commerce Fulfillment Centers

High-turnover SKU setups require modular designs. Quick-adjust boltless connectors allow operators to modify spacing as stock levels change throughout the season.

Cold Storage & Cleanroom Environments

Galvanized steel and powder-coated finishes protect the racking structures from rust and degradation in humid, temperature-controlled, or sub-zero environments.

Technical Q&A: Racking Design, Loading Dynamics & Maintenance

Technical details to assist procurement managers and warehouse engineers in selecting and maintaining storage systems.

What is the difference between UDL (Uniformly Distributed Load) and Point Loading on shelves?
Our load capacity ratings (100–300kg) are based on Uniformly Distributed Loads (UDL). This assumes the weight is spread evenly across the shelf surface. Point Loading occurs when a heavy, concentrated weight is placed in a single spot. This concentrates stress on the support structures and increases the risk of beam bowing. For point loads, we recommend using thicker steel panels or adding reinforcement support bars underneath the shelves.
How do cold-rolled steel and hot-rolled steel compare in warehouse racking?
Cold-rolled steel sheet is processed at room temperature, which increases its yield strength and improves its dimensional tolerances compared to hot-rolled steel. Cold rolling allows for precise control of material thickness, resulting in cleaner bends, sharper corners, and highly consistent upright and beam profiles. This accuracy is essential for modular, boltless racking systems where secure, wiggle-free connections are required.
Why is powder coating preferred over liquid paint for warehouse shelving?
Industrial electrostatic powder coating provides a thicker, more durable protective barrier than traditional liquid paint. The powder coating is cured under heat, cross-linking the polymers to create a tough, impact-resistant finish. This coating protects the steel from scratches, moisture, and chemical exposure, which helps prevent corrosion in high-traffic commercial environments.
What safety and maintenance checks should be conducted on industrial racking?
We recommend conducting safety inspections every six months. Inspectors should check upright posts for forklift impact damage, verify beam deflection limits under load, and inspect connection points (such as safety pins or wedge clips) for displacement. Damaged components should be marked and replaced immediately to maintain structural stability.
Can these racking systems be adapted for seismic zones?
Yes. For seismic areas, our engineering team can design custom solutions that include wider base plates, heavy-duty concrete anchor bolts, and diagonal cross-bracing. These additions help stabilize the racking structures and distribute lateral forces during ground movement, keeping operations compliant with local building codes.

Complete Storage Solutions & Support Systems

Expanded catalog featuring heavy-duty boltless racking, customized shop displays, utility carts, and space-saving industrial layouts.

Warehouse Racking Systems Boltless

Warehouse Racking Systems Boltless 500kg RD-33# ISO9001 Save Space

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Customized Wire Mesh Grid Panel Display

Customized Hot Sale Cheap Price Stationery Store Metal for Shops Wire Mesh Grid Panels Wall Hook Product Display Rack

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RD Stainless Steel Shopping Trolley

RD-Asia Style Shopping Trolley Stainless Steel Shopping Cart Sturdy Durable Strong Serviceable Supermarkets Push Carts Rz

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Heavy-Duty Double Sided Steel Supermarket Rack

Heavy-Duty Double Sided Steel Supermarket Rack with Customized Shelves for Beauty Design Grocery Convenience Display

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Foldable Black Shopping Trolley

Supermarket Shopping Trolley Foldable Black with Chrome Plated Wheels Coin-Lock Feature Plastic Steel Material Unfolding Feature

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Q235 Steel Multilayer Storage Rack

Q235 Steel RD-33# Multilayer Storage Rack Medium Duty Tier-Adjustable Powder Coated GS Certified Multi-Level Cargo Rack

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Custom Colors Steel Sequin Wall Panel Backdrop

Custom Colors Heavy-Duty Steel Sequin Wall Panel Backdrop Supermarket Rack Display for Birthday Party or Wedding Decoration

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Narrow Aisle Racking for Warehouse Storage

Narrow Aisle Racking for Warehouse Storage - Heavy Duty Beam Pallet Racking with Galvanized Aluminum Shelves in 2044

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All Medium warehouse shelves(100~300KG) Products