Explore our premier line of industrial storage hardware and smart material handling integrations engineered for logistics optimization.
Over a decade of engineering excellence in global logistics design and robotic system integration.
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. Operating from a modern production facility spanning 38,000 m², we leverage over 12 years of industry experience and 8 years of international trade expertise to 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.
Take a step inside Sunli's digital manufacturing center. Our vertically integrated pipeline maintains compliance with strict EU and US load bearing standards.
A comparative structural and economic analysis of next-generation warehouse storage systems.
The global demand for high-efficiency, multi-level storage systems is rising rapidly. Driven by the expansion of third-party logistics (3PL), global e-commerce fulfillment, and advanced manufacturing sectors, warehouse floor space has become a high-value commodity. Industrial operations are shifting from basic static shelving systems to high-density, dynamic, and adjustable steel pallet structures. Adjustable shelving provides the required operational flexibility, allowing facilities to quickly reconfigure layout schemes, support varying load shapes, and integrate with autonomous material handling machinery.
In regions such as North America and Europe, rising warehouse lease rates demand optimal vertical space utilization. Upright storage rack profiles must withstand heavy static and dynamic loads while maintaining strict safety factors. Consequently, structural engineering standards—such as RMI (Rack Manufacturers Institute) in the United States and EN 15512 in Europe—heavily influence steel specification decisions and roll-forming tolerances.
The primary trend in modern intralogistics is the convergence of structural rack design with warehouse automation systems. Driven by this evolution, structural specifications have become highly demanding:
| Racking Type | Standard Pitch Adjustability | Load Capacity (per layer) | Space Utilization Index | Typical Industrial Applications |
|---|---|---|---|---|
| Selective Pallet Racks | 50mm / 75mm / 76.2mm | 500 kg – 2,000 kg | Low-Medium (40% - 50%) | General warehousing, 3PL distribution, retail stockrooms |
| Double Deep Racks | 75mm / 76.2mm | 1,000 kg – 2,000 kg | Medium-High (60% - 65%) | High-density consumer goods storage, long-term inventory |
| AS/RS Automated Racks | Custom welded/bolted | 1,000 kg – 3,000 kg | Ultra-High (85%+) | Automated pharmaceutical, automotive parts, food distribution |
| Medium-Duty Shelving | 50mm | 100 kg – 500 kg | Medium | Electronic assembly lines, pharmaceutical packaging, hand-pick zones |
The technological convergence of passive steel racks and automated materials-handling robots.
Our upright columns undergo multi-pass roll forming to prevent residual internal stress. This process ensures precise straightness tolerances, allowing for safe vertical stacking up to 24 meters without structural deformation.
We utilize Panasonic automated welding cells to create clean, uniform fillet welds between connectors and beam profiles. This robotic welding prevents gas pockets and micro-cracking, improving load-bearing capacity and impact resistance.
We integrate high-density racking with active automated systems, including laser-guided AGVs, pallet shuttle carts, and crane-operated AS/RS. This integration turns passive steel structures into highly responsive automated storage systems.
Tailoring structural storage systems to meet regional regulations and dynamic industry environments.
Our engineering team performs structural FEA (Finite Element Analysis) simulations to verify seismic resistance in active zones like the US West Coast and New Zealand. Racking footprints feature heavy-duty base plates, anchor bolts, and cross-bracing ratios configured to withstand lateral seismic acceleration forces.
For microelectronics and electrical manufacturing industries, our adjustable steel shelving is treated with specialized anti-static (ESD) powder coatings. This coating prevents static buildup, keeping stored ICs and circuit boards safe from electrostatic discharge damage.
Answers to key engineering, installation, and procurement questions from logistics managers and structural engineers.
Engineered high-density warehouse systems to maximize space efficiency and optimize inventory throughput.
SunliRack