Engineered for high density storage, stability verification, and modular warehousing configuration.
In the landscape of industrial supply chains, optimization of space, accessibility, and economic efficiency remains paramount. Medium-duty warehouse shelves (100–300kg capacity per tier) act as the structural bridge between light shelving units and high-load pallet systems. Historically, facilities relied on heavy-duty profiles for moderately dense inventory—a configuration that introduced structural cost inefficiencies. Modern warehouse engineering has moved toward application-specific static configurations, where medium-duty storage allows fast manual retrieval, carton-live flow integration, and flexible configuration adjustments.
Shenzhen Runda Racking Manufacturing Co., Ltd. has developed specialized shelf architectures that address the critical structural issues of deflection, fatigue under cyclic loading, and rapid mechanical reconfiguration. By focusing on localized storage standards and material density engineering, our production systems deliver reliable, high-yield solutions to major markets including North America, Western Europe, and Southeast Asia.
Every rack profile under a uniform distributed load (UDL) is subject to deflection. For medium-duty applications, controlling the deflection limit is essential to guarantee human safety and prevent degradation of the structural columns. Shenzhen Runda designs racks with deflection limitations exceeding the standard industry benchmark of L/200, ensuring zero structural failure under full load profiles (up to 300kg per level).
Aligning structural mechanics, supply-chain logistics, and regional compliances to optimize global procurement operations.
Utilizing high-tensile Q235B cold-rolled steel, processing raw sheets with strict yield strength measurements to withstand cyclical strain and temperature-dependent fatigue.
Engineered to satisfy CE EN 15635 standards and US MH10.2 guidelines. We offer seismic designs and calculated column profiles for earthquake-prone distribution sites.
Seamlessly integrates with Automated Guided Vehicles (AGVs) and conveyor systems. Standardized dimensional tolerance ensures clean mechanical handoffs.
Selecting storage solutions requires analyzing structural properties rather than relying on capacity labels. The base of Shenzhen Runda's medium-duty racking systems is hot-rolled carbon structural steel (Grade Q235B), standard under national specification GB/T 700. In our laboratory tests, Q235B demonstrates yield strength ($R_e$) of 235 MPa for thicknesses up to 16mm, and tensile strength ($R_m$) ranging from 375 to 500 MPa.
This material chemistry balances tensile capacity with elongation, allowing the cold-formed profiles to absorb impact shocks (such as warehouse fork-truck collisions) without catastrophic cracking.
Before roll-forming, our structural design engineers subject each new panel profile to Finite Element Analysis (FEA). By simulating vertical loading forces and lateral shear stresses, we optimize the thickness of upright columns (ranging from 1.5mm to 2.0mm) and beam heights. This prevents buckling and minimizes cross-sectional deformation, keeping logistics personnel safe and saving raw material costs, which we pass directly to the client.
Operating as an OEM/ODM and large-scale exporter requires a deep understanding of varying regional building and fire codes. Medium-duty rack configurations exported to the European Union are marked CE under EN 15635: Steel static storage systems – Application and maintenance of storage equipment. In contrast, components targeting North American enterprises are calculated in accordance with the Rack Manufacturers Institute (RMI) MH16.1 specifications.
We provide calculations for seismic load factors ($S_D$) to clients in geologically active regions. These calculations guide the thickness of the floor anchor plates, base plate assemblies, and expansion bolt depths. Furthermore, to prevent fire hazards, our shelves are designed with wire deck inserts or perforated steel panels, which allow overhead sprinkler water to pass through, satisfying NFPA 13 requirements.
Inside Shenzhen Runda's 35,000 square meter manufacturing plant: from raw cold-rolled steel to automated shipping loads.
Heavy machinery configured to ensure dimensional accuracy and consistent structural strength.
Different industries present unique demands that shape storage specifications. Over eleven years of manufacturing, Shenzhen Runda has developed a comprehensive library of custom projects tailored to specific operational requirements.
High SKU velocity requires systems optimized for manual picking, boltless step beams, and dynamic shelf adjustments. Our 100-300kg systems support rapid reorganization of picking lanes to accommodate seasonal inventory shifts.
Heavy metal components and oily environments demand robust structural panels. Our high-adhesion powder coating resists chemical corrosion and oil degradation, preventing panel rusting under extreme operating conditions.
In sub-zero environments, standard carbon steel becomes brittle. Runda employs specialized steel composition adjustments and galvanized coatings to maintain mechanical integrity down to -30°C.
Blending high capacity with aesthetics, our light and medium display configurations allow direct retail interaction without compromising on safety or structural rigidity.
Procuring industrial shelving systems directly from Shenzhen Runda offers distinct economic and logistical benefits compared to domestic suppliers or fragmented regional distributors.
Common structural engineering, material chemistry, and logistics questions answered by our operations director.
Flexible display shelving, retail accessories, and checkout counters engineered to optimize floor space.
Runda Racking
