Explore our foundational heavy-duty vertical storage racking and intelligent material handling solutions built to international quality and load standards.
A Global Standard Industrial Racking & Automated Logistics Infrastructure Partner
Established in 2015, Shenzhen Sunli Intelligent Logistics Equipment Co., Ltd. has developed into a premier powerhouse manufacturing high-performance vertical pallet racks and structural steel warehousing systems. Operating from a modern production facility spanning 38,000 m², we leverage over 12 years of industry engineering experience and 8 years of international trade expertise.
Our storage solutions are highly customized and exported to global economic hubs in North America, Western Europe, Southeast Asia, and the Middle East. With an integrated manufacturing process spanning advanced rolling, automated welding, and state-of-the-art laboratory validation, we sustain an export revenue of $18 million to $25 million annually.
Direct material analysis, precision weld testing, and powder coat thickness audits.
Focusing on high-density structural enhancements and integration protocols with AS/RS & AGV units.
A highly responsive raw material supply chain ensures cost stability and rapid cycle times.
Custom loading capacities, tailored vertical heights, and precise seismic structural engineering.
Why Tier-1 3PL Providers and Enterprise Logistics Hubs Source Vertical Racks from China
Sourcing heavy-duty vertical racks from a specialized Chinese manufacturer like Sunli goes beyond surface-level cost efficiencies. It represents a strategic alliance with an advanced industrial ecosystem engineered to deliver high engineering standards, fast product delivery, and customized configurations.
Our facility uses premium Q235B and Q355B cold-rolled steel. This high-yield-strength carbon steel forms the backbone of structural safety in vertical racking. Due to China’s integrated domestic steel supply chain, we secure consistent raw materials that undergo rigorous tensile strength verification. This direct supply connection guarantees that the steel retains its elasticity and load capacity even under prolonged stress, seismic loading, or temperature swings.
Precision is critical when building racks that extend 15+ meters high. Sunli's factory utilizes automated cold roll forming lines, high-accuracy punchers, and automated robotic welding units. Automated production ensures uniform component dimensions, straight upright profiles, and clean weld lines. Minimizing human error in cutting, punch spacing, and structural welding keeps our systems highly stable and safe to operate.
Corrosion resistance is crucial for safety and longevity. Our automated powder-coating lines apply thick, even layers of electrostatic spray coatings. This process includes pre-treatment, pickling, and phosphating stages to guarantee excellent adhesion. For high-tech, sensitive electronics environments, we offer specialized ESD (electrostatic discharge) protective coatings to keep operations safe.
Engineered storage architectures tailored to diverse industrial environments and vertical layouts.
Designed for rapid product turnover, maximum space utilization, and easy SKU sorting.
High-density racking designs built to perform in sub-zero operations.
Engineered to handle extreme loads, heavy metal parts, and large machinery tooling.
A systematic process from design to manufacturing that guarantees structural safety.
Using Finite Element Analysis (FEA) software to simulate stress, seismic forces, and load limits before production begins.
Every shipment of steel coil undergoes chemical analysis and yield-strength testing to confirm it meets strict industrial standards.
Modern rolling mills shape uniform uprights, and automated welding lines produce robust, reliable connection welds.
Components undergo comprehensive testing: weld inspection, coating thickness measurement, and physical load testing.
Direct view of the production lines and QC instruments at our 38,000 m² Shenzhen facility.
Adapting warehousing installations to meet automated demands and global building codes.
For logistics hubs in active seismic zones (like parts of the US, New Zealand, or Southern Europe), racking systems must be built to dissipate seismic forces safely. Sunli’s engineering department uses advanced simulation software to calculate baseplate size, anchorage depth, and bracing patterns. This ensures our systems meet global structural standards, including RMI (Rack Manufacturers Institute) guidelines and FEM 10.2.02 specifications.
Traditional manual warehousing is evolving toward automated configurations. Integrating rack systems with Automated Guided Vehicles (AGVs) and stacker cranes (AS/RS) requires tighter manufacturing tolerances. A variation of just 2mm can disrupt automated crane paths. Our automated lines produce structural components that meet these strict tolerances, ensuring reliable system integration.
Modern procurement departments prioritize environmental responsibility. Our powder coating process is fully enclosed and uses non-toxic, lead-free powders with a reclaim system that filters and reuses overspray. This eco-friendly process protects both the environment and workers while delivering a high-quality surface finish.
Important technical details for sourcing managers and structural engineers.
Explore our semi-automated systems, custom mezzanines, and smart logistics equipment built for next-generation facilities.
SunliRack