Engineered to maximize volumetric efficiency, structural stability, and seamless warehouse operations.
Founded in 2014, Dongguan Durack Logistics Equipment Co., Ltd. is a premier Chinese storage racking system manufacturer operating a 35,000 m² facility. Backed by 12 years of industry experience and 8 years of global export history, the company generates $28 million in annual export revenue.
Our operations are supported by a strict quality assurance system using full-spectrum ultrasonic testing and load-bearing stress evaluations, overseen by 45 dedicated QC specialists. Building on a strong international trading background, our core markets span North America, Europe, and Southeast Asia. We maintain a reliable supply chain network of over 850 partners, catering primarily to third-party logistics (3PL) providers, automated warehouses, and large industrial distributors.
Driven by an active R&D division with 65 specialized engineers, Durack offers full OEM/ODM customization options—including bespoke beam profiles, structural steel grades, and dynamic layout designs—launching over 120 new storage products last year.
An in-depth analysis of structural integrity, material metallurgy, and volumetric optimization for modern logistics infrastructures.
The performance of any heavy-duty storage system is fundamentally determined by the metallurgical properties of the steel profiles used. Dongguan Durack Logistics Equipment Co., Ltd. utilizes high-strength, hot-rolled carbon steel, specifically Q235B and Q355B structural steel grades. Q355B, featuring a yield strength of 355 MPa, is specifically deployed in upright columns and load-bearing beam joints that encounter dynamic shear stresses. Standardizing on these grades ensures that structural components retain elasticity without permanent deflection under rated loading configurations.
The manufacturing process ensures thickness uniformities through precision cold-rolling mills. Columns are formed with multi-bend teardrop or hexagonal profiles to maximize the moment of inertia. By executing up to 12 distinct bending operations on a single profile, we eliminate the localized buckling vulnerabilities common in standard rolled-steel storage racks.
In accordance with the RMI (Rack Manufacturers Institute) guidelines and EN 15512 structural specifications, our structural pallet racking beams are designed to adhere to deflection limits under maximum load of no more than 1/240th of the clear span length (L/240). For critical applications, such as automatic shuttle storage systems, this threshold is tightened to L/300 to prevent structural interference with autonomous machinery.
Modern distribution centers demand high-bay, multi-level storage racking systems that are susceptible to seismic forces, P-Delta secondary structural stresses, and accidental forklift impacts. Every custom storage racking layout engineered by our 65-specialist R&D division undergoes rigorous Finite Element Analysis (FEA) using specialized software. By simulating 3D structural stress distributions, we optimize wall thicknesses and footplate geometries, reducing structural weights without compromising load-bearing limits.
Our seismic design portfolios are tailored to local seismic zones (compliant with USGS and ASCE 7 parameters for North America). Baseplate connections are calculated to distribute overturning moments evenly across concrete slab foundations, using high-tensile anchor bolts to securely anchor racking structures to floor plates.
| Steel Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Recommended Applications |
|---|---|---|---|---|
| Q235B | 235 | 375 - 500 | ≥ 26 | Standard light-to-medium display racks, mezzanine floor purlins |
| Q355B | 355 | 470 - 630 | ≥ 22 | Heavy-duty upright frames, long-span box beams, high-bay ASRS |
| SS400 | 245 | 400 - 510 | ≥ 21 | Export-grade retail metal hooks, wire decking support channels |
The longevity of structural steel storage racks operating in humid environments or cold storage (-30°C) depends on surface pre-treatments. Dongguan Durack Logistics Equipment Co., Ltd. utilizes an advanced 9-stage chemical pre-treatment line, incorporating hot alkaline degreasing, acid-washing to remove mill scale, and zinc-phosphate parkerising. This molecular conversion coating ensures maximum adhesion of the subsequent polymer film.
For coating, we utilize automatic electrostatic powder coating lines running outdoor-grade thermo-setting epoxy polyester powder. The standard cured film thickness exceeds 70-80 microns (verified systematically with magnetic thickness testing instruments). This coating remains resilient against impact, UV exposure, and moisture ingress, preventing localized oxidation that could cause structural failures.
Take a virtual tour through our 35,000 m² modern fabrication facility, showcasing end-to-end traceabilities and automated production phases.
Custom-engineered racking layouts that resolve specific environmental and logistical constraints.
Utilizing high-density, automated 4-way shuttle racking to operate efficiently down to -30°C. By reducing the overall spatial footprint by 60% compared to standard configurations, we reduce thermal footprint overheads and maximize refrigeration conservation.
Providing adaptable selective pallet racks integrated with modular structural steel mezzanines. Multi-tier mezzanine floor combinations allow rapid SKU reconfigurations, optimizing picking rates and workflow layouts for volatile supply chains.
Fabricated under precise structural tolerances, our AS/RS racking racks interface seamlessly with automated stacker cranes. We maintain coordinate alignment tolerances within 1.5mm per upright tier to protect automated storage operations.
Innovating next-generation smart warehousing structures through metallurgical research and IoT integrations.
The future of industrial storage systems is transitionary from passive steel frames to active, data-driven structures. Our active R&D team is piloting structural health monitoring arrays using integrated piezoelectric strain sensors. These micro-sensors are calibrated at structural intersections to dynamically transmit load fluctuations, warning warehouse safety personnel of unexpected frame stresses, overload states, or structural displacements caused by forklift impacts.
By consolidating data through local WMS interfaces, facility managers receive real-time structural audits. This minimizes operational risk, reduces manual inspection costs, and provides structural traceabilities for safety audits.
Aligning with international ESG requirements, we are re-engineering our supply chains to support sustainable steel sourcing. Utilizing steel manufactured via low-carbon electric arc furnaces (EAF) reduces carbon emissions by up to 50% compared to traditional blast furnace routes.
Furthermore, our powder coating processes exclude volatile organic solvents (VOCs). The excess powders are captured by dual-cyclone extraction modules, resulting in a 98% powder utilization efficiency. This zero-waste powder loop satisfies European REACH and RoHS standards, giving our global clients a verifiable green supply chain credential.
Exporting structural steel globally requires detailed engineering documentation and compliance verifications. Durack maintains continuous export compliance protocols to ensure efficient customs clearance.
Structural frames and beams are shipped nested and securely bundled with steel banding. High-wear contact edges are wrapped in multi-layer corrugated card sleeves to prevent paint abrading during shipping.
Our projects are planned to align with international safety parameters, such as NFPA 13 (sprinkler clearance standards), structural steel weld certification tests, and European EN 15512 codes.
For complex projects, including multi-tier mezzanine floors or automatic shuttle storage racks, we provide detailed 3D installation blueprints, instructional videos, and structural engineering supervision options.
Technical guidance regarding design standards, dynamic safety margins, and custom industrial structural engineering queries.
Explore our complete product portfolio designed for retail stores, commercial setups, and logistics centers.
Durack