Engineered to optimize warehouse density, improve material flow, and support high-throughput load operations.
Established in 2015, Shenzhen Sunli Intelligent Logistics Equipment Co., Ltd. has developed into a premier manufacturer specializing in heavy-duty industrial racking, smart warehouse storage systems, and heavy material handling structures. Operating from an expansive, modern production facility spanning 38,000 m², we leverage over 12 years of core industry experience and 8 years of international trade operations to serve global logistics networks and high-density fulfillment centers.
Our high-performance logistics infrastructures generate an annual export revenue ranging between $18 million and $25 million. Through our expansive distribution networks, we support vital supply chain hubs across North America, Western Europe, Southeast Asia, and the Middle East. By combining mechanical engineering precision with robotics integration, we bridge the gap between static pallet placement and dynamic load movement.
Our commitment to global standards is backed by a robust supply chain network consisting of over 800 supply chain partners. We partner directly with large-scale third-party logistics (3PL) providers, global industrial distributors, e-commerce fulfillment hubs, and heavy retail enterprises to design, manufacture, and export structural storage racks and material handling carts.
Why procurement teams trust Chinese manufacturing hubs for complex logistics racking and material movement systems.
In the global material handling sector, sourcing from China extends far beyond labor cost efficiencies. The primary advantage lies in the *unparalleled depth of the industrial ecosystem* and raw material logistics. Shenzhen Sunli utilizes premium Q235B and Q355B structural carbon steel, sourced directly from state-owned mills, ensuring uniform tensile strength, yield points, and load capacity thresholds. This stable access to high-grade steel allows us to build heavy-duty racking, mezzanine systems, and load-bearing structures that maintain structural integrity under extreme industrial stress.
Continuous steel rolling profiles with ultra-precise computer-aided punching systems ensure accurate upright and beam connections for maximum load safety margins.
Highly repeatable, pulse-controlled robotic welding stations minimize thermal deformation, resulting in defect-free weld joints certified for high structural loads.
Multi-stage chemical pre-treatment and electrostatic dry-powder coating line provides deep anti-corrosive protection, resisting humidity and temperature fluctuations.
By leveraging advanced raw material load-bearing analysis and finite element analysis (FEA), Sunli structures conform to structural safety requirements. Upright frames and load-supporting profiles are continuously audited using computerized tensile testing to calculate dynamic safety factors before mass production.
Every step of the process is documented and evaluated by 35 dedicated QC professionals using high-precision testing equipment.
Our 28-person R&D team and 35-person QC inspection staff perform precise structural tests on all load-bearing elements. Utilizing specialized laboratory tools, we verify raw material strength, coating thickness, weld penetration, and vertical alignments.
Enterprise requirements for structural integrity, worker safety, and regulatory compliance in heavy-duty warehousing environments.
Safety remains the primary concern in material handling systems. A failure in a pallet rack or automated shuttle system can lead to significant supply chain disruptions. Because of this, global enterprises require strict compliance with international structural standards, ensuring that all components can support their designated loads.
| Standard | Target Regulatory Region | Critical Compliance Focus | Sunli Implementation Policy |
|---|---|---|---|
| ISO 9001:2015 | Global Quality Management | Process traceabilities, raw material documentation, and quality controls. | Fully certified; dynamic testing tracks raw steel coils back to the mill batch numbers. |
| CE Certification | European Economic Area (EEA) | Safety of automated components, mechanical stability, and electronic compatibility. | Applied to all AS/RS shuttles, laser-navigated lifts, and automated warehouse controls. |
| EN 15512 / FEM | European Union Steel Storage | Structural analysis, dynamic limit tolerances, and rack buckling limits. | Finite Element Analysis (FEA) models simulate load stresses to comply with European safety codes. |
| RMI / ANSI MH16.1 | United States & Americas | Seismic zone capacity calculations, base plate thickness, and beam deflection limits. | Customized baseplates and anchor layouts optimized to withstand seismic requirements. |
| ESD (Electrostatic) | Global High-Tech Industry | Anti-static powder coating to protect delicate electronics and microchips. | Specialized conductive finishes applied to beams and shelves to direct charges safely. |
In addition to static load calculations, our engineering team factors in structural deflection margins. According to standard specifications, the deflection of a loaded beam must not exceed 1/200th of the span width. Sunli beams are rated with conservative safety margins, maintaining structural stability even during emergency dynamic braking events in automated AS/RS systems.
How modern supply chains integrate structural racking with automated transport systems to maximize fulfillment throughput.
The industry is moving quickly away from manually loaded racking toward intelligent, automated logistics systems. AS/RS technology uses laser-guided vehicles, rack cranes, and automated shuttle carts to handle heavy pallets without human intervention.
This automation requires high structural accuracy. Even a minor structural warp of 2mm can trigger sensors and stall automated shuttle cranes. We maintain tight engineering tolerances on our upright columns and rails to support smooth, 24/7 robotic operations.
Our heavy-duty radio shuttle racking systems are designed for high-density storage, allowing shuttle carts to move pallets rapidly through storage lanes. By combining strong steel racks with smart shuttle carts, we help modern logistics hubs optimize their storage capacity.
Optimized steel formulations resist low-temperature embrittlement down to -30°C, making them suitable for frozen food distribution and biopharma hubs.
Adjustable multi-tier mezzanine decks and high-density racking maximize vertical storage, supporting fast-moving consumer goods (FMCG) distribution.
Heavy-duty, adjustable beam pallet racks handle concentrated, off-center loads up to 4,000kg per level, keeping industrial components stored safely.
How Sunli provides complete engineering support, transit protection, and installation guidance across international borders.
Exporting large-scale steel structures requires careful shipping and logistical planning. Our shipping prep department packs all racking profiles, upright frames, and beams using protective wrapping and heavy steel banding to prevent shipping damage during long sea voyages.
To support local installations, Sunli provides detailed engineering blueprints, structural calculations, and installation guides. For large project rollouts, we work with local engineering groups to ensure the installed racking meets local building regulations and seismic codes.
Our R&D team continuously updates our component designs, introducing over 120 new products and structural improvements annually. This continuous development helps us design racking solutions that integrate smoothly with new warehousing technologies, like AGVs and conveyor systems.
Answers to common questions from warehouse managers, procurement officers, and engineering teams.
We use high-grade Q235B and Q355B structural carbon steel, sourced directly from verified Chinese steel mills. Q235B is standard for ambient warehouse racking due to its balance of cost, ductility, and weldability. Q355B is selected for high-load columns, automated AS/RS components, and low-temperature applications where higher yield strength is required.
Radio shuttle systems utilize custom steel lanes fitted with guide rails. The automated shuttle cart travels along these rails, lifting and moving pallets within the lane. Standard heavy-duty pallet racks must be engineered to support these lanes, ensuring precise alignment and high structural stiffness to handle the dynamic loads of moving shuttles.
We apply a multi-stage electrostatic powder coating to all steel components. This process includes chemical cleaning, phosphating, and heat curing at high temperatures. For outdoor or high-humidity applications, we offer hot-dip galvanizing, which creates a thick zinc layer that protects the steel from rust and environmental wear.
We provide complete CAD layouts, mechanical drawings, and static calculations. For projects requiring municipal approval or seismic certs, we work closely with local engineering partners. We design baseplates, bracing, and anchoring setups that comply with regional codes, such as RMI/ANSI in the US or FEM in Europe.
We provide extensive custom options, including specialized load capacities, bespoke upright and beam dimensions, custom safety paint finishes, and built-in automation components. Our 28-person R&D team can customize layouts to work with existing material handling equipment, dynamic conveyor lines, and heavy-duty carts.
Explore our complete range of certified warehousing structures, heavy-duty racking, and automated logistics systems.
SunliRack
