High-capacity structural configurations engineered to optimize distribution space, heavy-duty retail environments, and industrial inventory management.
Nanjing Dulis Warehouse Equipment Co., Ltd. (DuraRacks) is a premier industrial display & storage system manufacturer supplying high-performance solutions globally.
Operating globally under the flagship brand DuraRacks, Nanjing Dulis Warehouse Equipment Co., Ltd. stands as a cornerstone of advanced storage and visual merchandising manufacturing. Over the course of 12 years of industry experience and 9 years of direct export excellence, we have transformed our 38,000-square-meter facility into a state-of-the-art smart factory that merges automation with rigorous mechanical engineering principles.
Our operation is built on high-precision steel fabrication, supplying heavy-duty display solutions, cantilevers, automated storage systems, and specialized supermarket equipment. Unlike suppliers that outsource metal fabrication, DuraRacks executes complete in-house manufacturing, ensuring full traceability from the raw steel coil to the final electrostatic powder-coated finish.
"By integrating Finite Element Analysis (FEA) into our structural design process, we enable retail environments and warehouse hubs to maximize vertical load limits safely, under seismic conditions and harsh environments."
Mapping the commercial and logistical challenges faced by modern multinational chains and large industrial operations.
Industrial warehouses, building materials centers, and hypermarkets require displays that combine aesthetic marketing appeal with raw structural performance. Standard commercial racks buckle under structural stress; DuraRacks engineers our systems using high-yield Q235B and Q355 steel, guaranteeing load tolerances from 300kg to over 1000kg per level.
Industrial real estate costs demand optimal floor footprint utilization. Our customizable 4-sided gondolas and multi-tier cantilever systems allow operations to scale vertically, reclaiming up to 40% of previously wasted floor space while maintaining pedestrian and forklift safety clearances.
Operating globally means complying with stringent safety frameworks including Europe's EN/FEM standards, North America's ANSI/RMI specifications, and Australia's AS4084 guidelines. Procuring through DuraRacks ensures that your facility passes municipal inspections and meets corporate insurance requirements without delay.
An end-to-end overview of our production stages, combining robotic precision and raw material integrity.
Raw Material
Cutting
Cold Rolling
Punching
Bending
Welding
Polishing
Painting
Warehouse
Cutting Machine
Cold Rolling Machine
Punching Machine
Laser Cutting Machine
Painting Line
Bending Machine
From standard merchandising displays to heavy industrial warehouse platforms: our engineers solve complex physical storage challenges.
The lifetime of an industrial display stand is determined by the yield strength of its structural material. DuraRacks utilizes cold-rolled structural steel coils sourced directly from top-tier national mills. In our manufacturing center, computerized cold-rolling mills form the profiles into precise geometries. This cross-sectional profile design optimizes the distribution of forces during high-vertical loading, mitigating risk of deformation over time.
Before any production begins, our 68 R&D engineers deploy structural simulation platforms to conduct FEA simulations. This mathematical mapping allows us to estimate buckling points, maximum permissible load deflection, and seismic shear resistance. For projects situated in active fault zones, our custom structural rack updates incorporate thick upright bases, heavy-duty brace sections, and high-tensile anchors. This guarantees full compliance with ANSI/RMI MH16.1 specifications.
Whether displays are deployed in cold storage facilities or outdoor environments, they must withstand moisture and mechanical wear. Our fully automated painting lines utilize multi-stage chemical pretreatment, followed by electrostatic powder deposition of thick thermosetting epoxy-polyester coatings. To validate paint cohesion and barrier resistance, test panels undergo continuous salt-spray tests and mechanical drop-impact challenges, ensuring long-term resistance to chipping, rust, and chemical cleaning agents.
DuraRacks Engineering Milestone: In the past fiscal year, we delivered over 85 customized component patents, including self-locking beam connectors, high-capacity cantilever assemblies, and modular frame systems that reduce installation times by up to 30%.
Our 45-person QA department enforces an inspection protocol to secure your staff, products, and capital investments.
We run ultrasonic scan evaluations across structural joints. This ensures deep penetration and zero micro-fissures in welded regions, eliminating structural vulnerabilities under dynamic stress cycles.
Specimens from each production run undergo mechanical pull tests. We measure yield thresholds, tensile limits, and elongation performance to ensure structural material integrity aligns with safety margins.
Our testing platform subjects columns, shelving panels, and cantilever arms to load margins of up to 1.5x rating. We measure vertical sag and recovery rates to verify compliance with FEM standards.
Answers to common structural design, customization, and export compliance questions.
We primarily use high-strength Q235B and Q355 structural carbon steel. Q355 offers higher yield strength for columns and beams subject to heavy loads, while Q235B is optimal for standard shelving panels and visual components.
Our engineering division runs FEA modeling software configured with local ground acceleration data. We adapt base plate thickness, anchor configurations, and diagonal bracing to comply with AS4084 and RMI guidelines.
Following CAD and layout approvals, our standard manufacturing lead time is 25 to 30 days. For new custom extrusion profiles or complex automated checkout counters, initial prototyping takes an additional 10 to 15 days.
Yes. We arrange shipments to major ports globally, including FOB, CIF, and DDP terms. Racks and displays are flat-packed with protective cardboards and metal banding to minimize transit damage risks.
Engineered components designed for visual presentation, high inventory density, and functional transaction terminals.
DuraRacks