Discover our primary heavy-duty modular racking models, engineered for seamless scalability, structural stability, and structural code compliance globally.
Operating from our modern, vertically integrated 38,000 m² state-of-the-art production facility, we execute complete lifecycle manufacturing—from structural metallurgical cold-forming to high-precision automatic welding and automated electrostatic powder coating. Backed by 12 years of core engineering experience and 8 years of global trade operations, we address complex material handling demands, generating an annual export turnover of $18 million to $25 million across major consumer bases in North America, Western Europe, Southeast Asia, and the Middle East.
Our commitment to structural safety is driven by our team of 35 dedicated quality control professionals, enforcing raw-material chemical verification, ultrasonic weld-seam inspections, and coating thickness analyses. Innovation remains central to our engineering growth. A dedicated team of 28 R&D structural engineers designs structural enhancements and dynamic automated systems, releasing more than 120 structural improvements and new configurations annually to meet shifting supply-chain requirements. We serve international Third-Party Logistics (3PL) hubs, e-commerce distribution centers, and global industrial distributors through a deep support network of over 800 local service and material supply partners.
How Sunli integrates raw material sourcing, state-of-the-art machinery, and lean manufacturing processes to provide cost, lead time, and load stability advantages.
We source structural carbon steel exclusively from tier-1 domestic mills (such as Baosteel and Ansteel). By utilizing high-tensile Q235B and Q355B structural steel, our load columns maintain structural integrity, load-bearing capacities, and high seismic tolerance limits under stress.
Our facility runs continuous automated roll-forming profile lines, robotic welding stations, and specialized CNC punch presses. Automated cutting prevents material distortion, maintaining dimensional tolerances within ±0.5mm across all upright columns and step beams.
Our multi-stage pre-treatment wash and automated powder coating line apply high-grade epoxy-polyester coatings. Curings are optimized to achieve ≥60-80μm thickness, providing high scratch, moisture, and chemical resistance for industrial use.
Inside Sunli's 38,000 m² factory: An inside look at our machinery lines, raw material storage, and continuous testing systems.
Industrial logistics solutions engineered to perform under specific operational challenges and regional storage regulations.
Designed for compliance with local building codes, our structural systems utilize heavy-duty footplates and reinforced bracing. These components are calculated using Finite Element Method (FEM) analysis to perform safely under high seismic stress loads.
Operating in conditions from -30°C to ambient temperatures, our systems feature specialized structural steel properties. These specifications are engineered to prevent low-temperature steel embrittlement, protecting cold-storage structures from failures.
Designed for integrated cleanroom assembly lines, our anti-static structural designs direct micro-currents safely to the ground. This feature protects delicate microchips and components from Electrostatic Discharge (ESD) damage during handling.
Integrating smart logistics, high-density warehousing configurations, and eco-friendly manufacturing technologies.
Modern commercial warehousing demands more than static steel shelves. Growth in global fulfillment speeds requires full integration between structural racking systems and robotic automation. Sunli is currently engineering structures that interface seamlessly with Autonomous Guided Vehicles (AGVs), autonomous shuttle assemblies, and warehouse automation controls. This reduces structural deflection during high-speed operations and optimizes overall space utilization.
We are testing smart load sensors embedded in support beams. These modules broadcast structural loading weights to Warehouse Management Systems (WMS), alerting operators to overloaded levels before structural failure risks arise.
Designing structures specifically for high-velocity material handling. Real-time path optimization helps mobile robots navigate shelving runs with minimal vibration and maximum spatial efficiency.
Developing ultra-low temperature curing powder coatings. This reduces overall energy consumption during factory baking processes by 25% while maintaining corrosion resistance performance metrics.
Every production batch undergoes strict mechanical and surface coating verification using calibrated testing instrumentation.
We test every production run to verify compliance with international standards. Our quality control lab conducts adhesion testing to ensure coatings remain bonded under stress. Thickness testing gauges confirm dry-film thickness levels. Load testing verifies structural integrity by measuring deflection under structural loads, maintaining a safety factor of 1.5 to 2.0 based on structural guidelines.
Ensuring smooth project execution, engineering compliance, and local post-sales service.
Our structural designs are engineered in accordance with key global standards, including CE, ISO9001, and SGS. This guarantees structural compliance with local building codes during site inspection and permitting processes.
We provide full installation manuals, detailed 3D layouts, and video guidance. For complex automated AS/RS and mezzanine setups, we can deploy factory engineers to assist with system calibration and onsite assembly.
Technical answers to help buyers evaluate structural capacities, customization options, and global shipping processes.
Explore our specialized heavy duty pallet flow, manual picking shelves, and AGV components designed for high-throughput environments.
SunliRack
