Explore our heavy-duty industrial storage racks and smart warehouse equipment engineered for extreme loads and collision resistance.
Founded in 2015, Shenzhen Sunli Intelligent Logistics Equipment Co., Ltd. has established itself as a premier global pioneer in heavy-duty industrial racking systems and automated smart warehouse logistics. Our manufacturing capability operates within a state-of-the-art 38,000 m² factory floor designed for precision rolling, cold-forming, robotic welding, and automated surface treatment. Drawing on 12+ years of manufacturing expertise and 8 years of international trade operations, we deliver robust solutions that consistently yield between $18 million and $25 million in annual export revenue.
We serve primary logistically demanding markets in North America, Western Europe, Southeast Asia, and the Middle East. Through structural innovations, our 28 R&D engineers formulate over 120 new structural improvements and products annually. They design configurations that safely support intensive storage, integrating automation such as automated storage and retrieval systems (AS/RS), laser-guided AGVs, and radio shuttle solutions. With a dedicated network of 800+ supply chain partners, we specialize in high-capacity infrastructure for 3PL providers, industrial manufacturing plants, e-commerce fulfillment hubs, and heavy-duty distribution facilities.
Understanding structural dynamics, force distribution, and material durability in modern high-throughput warehousing.
Standard racking fails under modern material handling equipment speeds. We engineer reinforced upright bases, heavy-duty guide rails, and high-tensile steel deflector shields designed to redirect and absorb kinetic force up to 10kJ, preventing structural crumpling.
Our upright designs utilize specialized cold-rolled steel with precise geometry and varying punch patterns. This preserves localized steel density, ensuring optimal weight distribution and preventing twisting under off-center dynamic loads.
Integrating oversized baseplates and dual anchor bolts per upright increases shear resistance. By utilizing Finite Element Analysis (FEA) models, we calculate dynamic stress vectors to guarantee high safety margins under seismic activity.
In modern high-velocity supply chains, racking structures must withstand both static storage weight and the dynamic impact of loading machinery. Sunli's engineering team utilizes structural grade Q235B and Q355 carbon steel to design systems that handle heavy localized loading. Standard selective racking can collapse under horizontal forklift impact, resulting in inventory damage and worker safety risks. To address this vulnerability, we integrate mechanical column protectors, low-profile barrier rails, and structural cross-bracing that distribute impact force throughout the entire racking framework.
An inside look at our 38,000 m² industrial facility. High-speed rolling lines, robotic steel fabrication, and precision automation lines.
Working with a leading Chinese racking manufacturer offers significant supply chain advantages. Our proximity to top national steel mills ensures a consistent supply of certified raw steel coils (Q235B and Q355) at stable prices. Our highly integrated production process—from raw material decoiling, precision punching, roll forming, and automated welding, to electrostatic powder coating—is completed entirely in-house. This level of vertical integration minimizes material handling delays, ensures tight tolerances (+/-0.5mm), and allows us to offer shorter production lead times compared to domestic western manufacturers.
We perform exhaustive materials analysis, stress testing, and surface durability tests to guarantee compliance with international standards.
Our quality assurance department consists of 35 QC professionals who oversee compliance checks at every stage of production. To verify load-bearing capacity and structural integrity, we conduct physical stress tests, including:
How we ensure our racking configurations satisfy the localized seismic, structural, and building regulations of international markets.
We tailor our structural calculations to match target market building codes. For the United States, our engineering calculations align with the RMI (Rack Manufacturers Institute) MH16.1 specifications. For European projects, we utilize EN 15512 and FEM 10.2.02 guidelines. Our systems are engineered to withstand localized seismic loads, featuring heavy-duty base plates and cross-aisle bracing designed to absorb seismic energy during high-acceleration ground movements.
We work with global testing bodies like SGS and Intertek to secure local certifications. Our facilities maintain strict CE and ISO 9001:2015 quality management systems, ensuring our racking solutions comply with international standards.
For international buyers, structural steel procurement requires more than just manufacturing. Sunli provides comprehensive engineering support, including:
Exploring the engineering requirements when merging heavy structural racking with high-speed autonomous warehouse robotics.
The logistics sector is shifting from static storage toward automated warehouse environments. Sunli is at the forefront of this evolution, developing high-precision racking systems optimized for Automated Storage and Retrieval Systems (AS/RS), automated Radio Shuttle Racks, and Autonomous Guided Vehicles (AGVs).
Integrating warehouse robotics requires tight structural tolerances. While standard pallet racks allow for deflection, automated shuttle systems demand straightness tolerances within +/-2mm across the entire length of the system. Our automated rolling and punching machines ensure the straightness of guide rails and upright profiles. Additionally, we integrate laser-reflective tape positions, dynamic rack-sensor mountings, and anti-collision guidance systems to facilitate safe, high-speed movement of automated shuttle carts and driverless forklifts.
Get professional insights on heavy-duty industrial racking systems, compliance requirements, and international procurement processes.
Explore our specialized industrial solutions, automated warehousing systems, and custom steel structures.
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