Heavy-duty systems and dynamic material handling solutions engineered for global warehouse systems.
How automation, urban land scarcity, and supply chain pressures are reshaping storage infrastructure globally.
Traditional static racking layouts utilize up to 60% of warehouse floor space for access aisles. Modern mobile storage systems, including motorized mobile racking and semi-automated high-density configurations, compress these aisles into a single movable pathway. This shifts utilization to over 85% layout efficiency, doubling the pallet capacity without expanding the facility’s footprint.
Dynamic storage systems are no longer isolated steel shelves. The contemporary ecosystem incorporates Laser-Navigation AGVs and automated radio controlled shuttles. This combination reduces manual forklift operations, accelerates loading cycle times, and supports continuous 24/7 material handling operations in high-throughput distribution hubs.
In temperature-controlled facilities, volume cooling costs are a major operational expense. High-density mobile storage systems limit the air volume requiring refrigeration. By eliminating empty access pathways, cold chain operators experience energy savings of up to 40% per pallet location, lowering long-term operating costs.
Established in 2015, Shenzhen Sunli Intelligent Logistics Equipment Co., Ltd. is a specialized manufacturer of heavy-duty industrial racking and smart warehouse storage systems. Operating from a modern production facility spanning 38,000 m², we combine over 12 years of structural engineering design experience and 8 years of international trade operations to support global logistics and industrial operations.
Our engineered systems generate an annual export revenue ranging between $18 million and $25 million, with primary installations in North America, Western Europe, Southeast Asia, and the Middle East. Through precise material selection and automated processing, we deliver robust solutions built for long operational lifetimes.
We provide comprehensive OEM/ODM custom solutions, including tailored load configurations, custom dimensions, architectural powder coatings, and fully integrated automated storage and retrieval systems (AS/RS). Operating with a network of over 800 supply chain partners, we supply 3PL logistics facilities, manufacturing centers, e-commerce distribution platforms, and large-scale retail enterprises.
Our QA framework is operated by a dedicated team of 35 quality control professionals. They perform raw material load-bearing testing, weld strength testing, and anti-corrosion powder coating thickness verification.
Our engineering group includes 28 R&D design engineers who introduce over 120 structural updates and new products annually to keep pace with evolving industry demands.
How material chemistry, computerized roll-forming, and advanced robotics ensure structural integrity under load.
We source certified structural carbon steels. Q235B provides optimal ductility and weldability for standard rack assemblies, while Q345B (high-strength low-alloy steel) is specified for heavy-duty columns and automation systems. Every shipment includes certified mill test certificates detailing chemical compositions and mechanical testing data.
Our cold-rolled profile lines shape structural steel with minimal tolerance deviations. Punching patterns are executed online using CNC punching systems, ensuring hole spacing alignment across long upright lengths. This precision simplifies onsite installation and supports uniform loading distribution.
Corrosion resistance is achieved using thermosetting epoxy-polyester powder formulations. Our automated multi-stage pre-treatment wash removes surface oils and scale before applying coatings. Racks undergo high-temperature curing to produce a durable, scratch-resistant surface with an average thickness of 60 to 80 microns.
Take a visual tour through our integrated workshop and structural rolling lines.
Testing infrastructure checking physical characteristics, welding specifications, and mechanical tolerances.
We design dynamic storage structures in compliance with major global safety codes.
Designs for European logistics centers comply with EN 15512 specifications. Structural designs account for second-order structural displacements, frame imperfections, beam-to-column connection stiffness, and localized buckling parameters. This compliance supports safe operations throughout the European Union.
For North American industrial facilities, systems are designed around the Rack Manufacturers Institute (RMI) specifications. Under this standard, we calculate seismic load behaviors based on site-specific soil classifications and local building code acceleration values, providing reliable performance in seismic zones.
Racking systems shipped to Oceania are calculated and manufactured in accordance with AS 4084 guidelines. Structural verification covers both serviceability limits and ultimate strength states under maximum structural load configurations, meeting Australian design requirements.
Engineering custom dynamic racking configurations for specialized sectors globally.
Third-party logistics providers require adaptable configurations to manage changing client inventory. Our adjustable mezzanine platforms and selective rack designs allow operators to reconfigure column patterns and load heights quickly.
For high-throughput fulfillment centers, we design multi-tier storage structures integrated with pick-to-belt pathways and automated radio controlled shuttle grids, helping operators minimize order turnaround cycles.
Heavy parts and equipment manufacturing require rugged storage. Our steel pallet systems are constructed with deep structural channels and reinforced base plates, providing stable support for heavy raw materials.
High-density mobile racking solutions reduce wasted space in refrigerated environments, optimizing air circulation patterns and lowering cooling costs per stored pallet.
Key requirements for supply chain managers, warehouse directors, and procurement experts sourcing from China.
Verify that your manufacturing partner provides mill test certificates for every batch of steel sheet coils, documenting raw material tensile limits and compliance with Q235B or Q345B specifications.
Specify robotic gas metal arc welding (GMAW) processes. Ensure all welders maintain certifications under international guidelines, and verify that weld seams undergo regular penetration testing.
Request cross-cut adhesion tests (in accordance with ASTM D3359) and coating thickness audits to ensure the durability of powder finishes against impact and wear from material handling equipment.
Emerging designs, eco-friendly finishes, and real-time monitoring solutions driving warehouse development.
Modern structures integrate load cell sensors and tilt sensors on structural uprights. These sensors monitor structural integrity in real-time, alert operators to overloading, and log damage from forklift impacts.
Global enterprises look to lower Scope 3 greenhouse emissions by choosing partners utilizing clean manufacturing processes. Our facilities use VOC-free dry powder coatings and high-efficiency gas-fired curing ovens to reduce environmental impact.
Modern business needs shift rapidly. Modular rack designs utilize bolted connections rather than welded components, allowing structural systems to be disassembled, moved, and scaled to match changing business requirements.
Common technical and logistics questions addressed by our engineering department.
Heavy-duty racking structures, protective accessories, and automated shuttle systems.
SunliRack
