Engineered for maximum structural integrity, compliance with global safety standards, and seamless integration with automated supply chains.
Forging high-precision warehouse racking systems and integrated intelligent automated logistics infrastructure since 2015.
Established in 2015, Shenzhen Sunli Intelligent Logistics Equipment Co., Ltd. is a leading manufacturer specializing in heavy-duty industrial racking and smart warehouse storage solutions. Leveraging over 12 years of industry experience and 8 years of international trade expertise, we serve global logistics and industrial sectors. Our high-performance storage solutions generate an annual export revenue ranging between $18 million and $25 million, with core markets spanning North America, Western Europe, Southeast Asia, and the Middle East.
Quality and precision are central to our operations. Our dynamic team of 35 dedicated QC professionals implements rigorous product inspection methods, including full raw material load-bearing analysis, high-precision weld seam testing, and comprehensive anti-corrosion powder-coating thickness checks. Driven by strong R&D capabilities, our team of 28 skilled R&D engineers continuously innovates to meet evolving supply chain requirements, introducing over 120 new products and structural improvements annually.
We offer extensive OEM/ODM custom options, including tailored load capacities, custom rack dimensions, color powder coatings, and fully integrated automated shuttle systems (AS/RS). Backed by a strong network of over 800 supply chain partners, we primarily partner with large-scale 3PL providers, industrial distributors, ecommerce logistics hubs, and global retail enterprises to deliver reliable, efficient, and scalable storage infrastructure worldwide.
Modern supply chain networks face unprecedented challenges. Urban land shortages have driven up industrial rent prices globally, forcing businesses to scale vertically. At the same time, the rise of quick-commerce, multi-channel distribution models, and massive 3PL hubs demands storage solutions that are not just strong, but structurally dynamic and highly space-efficient.
Today's industrial warehouse is no longer a static room of metal shelves. It is a highly optimized engineering system where structural tolerances, dynamic loading capacities, seismic resistance factors, and high-frequency robotic handling routes must align flawlessly. The shift toward automated storage systems (AS/RS) and automated guided vehicle (AGV) integration requires a fundamental rethinking of storage racking designs, demanding structural steel precision measured in fractions of millimeters.
High-density configurations like Drive-In racking and Double-Deep Selective racking double your pallet count without increasing the physical facility footprint.
Utilizing high-grade Q235B steel ensures that dynamic loads from high-reach forklifts and high-speed cranes do not compromise structural integrity over decades of operation.
Extremely strict deflection tolerances (under FEM 10.2.02 standard) are engineered directly into racking configurations to facilitate automated operations.
From primary hot-rolled steel to automated surface finishing, our production facility leverages high-grade materials and advanced machining to output unmatched product quality.
Our raw material procurement network coordinates directly with large-scale domestic steel mills, selecting structural steel coils (primarily Q235B and Q355B grades) that meet rigorous chemical composition and physical properties tolerances. With automated coil slitting, cold roll-forming lines, computerized punching presses, and robotic welding arms, Sunli guarantees uniform structural properties across all components. Our electrostatic powder-coating lines apply a highly durable finish with strict thickness control, ensuring optimal rust and corrosion protection for components installed in tough industrial or sub-zero environments.
As logistics operations transition toward fully automated facilities, storage system components must evolve to support intelligent, dynamic movements. Our technical roadmap focuses on integrating advanced structural calculations with robotic warehouse navigation systems:
Traditional selective racking relies on human operators correcting position variations on the fly. However, automated crane systems (AS/RS) and automated guided vehicles (AGVs) operate within tight physical clearances. Sunli is pioneering cold-formed steel manufacturing that reduces cross-sectional dimensional deviation to within ±0.5mm, preventing laser sensor faults and docking failures during continuous operation.
Future intelligent storage architectures will incorporate structural load sensors directly into heavy-duty storage beams. Working alongside our software engineering team, our R&D group is exploring the deployment of IoT-enabled strain gauges that transmit load data to the Warehouse Management System (WMS). This system provides immediate alerts when safe capacity limits are exceeded or structural stress peaks occur during localized seismic activity.
We are developing green supply processes by implementing high-tensile alloys that reduce overall product weight while maintaining design load-bearing capacity. Additionally, we are transitioning to low-emission powder coatings, helping our global commercial clients meet their strict ESG (Environmental, Social, and Governance) targets.
How Sunli engineering designs resolve real-world logistical bottlenecks across diverse geographical environments and climates.
Cold storage facilities operate under demanding environmental conditions. Sub-zero temperatures can cause standard structural carbon steel to become brittle. Sunli addresses this by using custom-alloyed steel formulations alongside specialized corrosion protection and zinc-rich coatings that resist condensation damage, ensuring long-term structural integrity inside deep-freeze storage hubs.
In seismic regions, storage systems require enhanced flexibility and lateral strength. Our structural engineering department utilizes advanced Finite Element Analysis (FEA) software to model seismic impact. We supply heavy-duty uprights with enlarged baseplates, double-bolted connection assemblies, and specialized cross-bracing patterns to dissipate ground energy and prevent catastrophic rack collapse.
E-commerce logistics facilities require fast, continuous operation. Multi-tier mezzanine floor installations must withstand shifting pedestrian foot traffic and moving transport equipment. Sunli engineers custom mezzanine storage designs featuring cold-formed steel framing and textured decking materials to optimize multi-level picking areas for maximum throughput and safety.
Engineered to international quality standards, providing long-term structural resilience and cost-efficient warehousing.
For high-capacity storage projects, compliance with regional safety codes is crucial. Sunli ensures all structural calculations and product designs meet relevant local regulations, including RMI (Rack Manufacturers Institute) guidelines in North America, FEM 10.2.02 codes in Europe, and national structural design standards worldwide.
Our global exporter workflows are structured to support your project from initial design to final sign-off:
In-depth answers to critical engineering, manufacturing, and logistical questions.
SunliRack
