Engineered to deliver high-capacity density and optimized material handling flow.
Behind our international storage projects is Shenzhen Yuanzhang Trading Co., Ltd.
Established in 2015, Shenzhen Yuanzhang Trading Co., Ltd. is a leading manufacturer and exporter specializing in heavy-duty warehouse racking and customized industrial storage systems. Operating out of a state-of-the-art 35,000 m² production facility, we bring 12 years of deep industry expertise and 8 years of dedicated international trade experience to global logistics and commercial storage projects.
Driven by technical excellence, our operations are backed by a robust research and development center staffed with 25 expert R&D engineers. Demonstrating our strong commitment to innovation, we launched over 150 new storage solutions last year alone. We offer fully versatile OEM/ODM custom options, including specialized dimensions, weight capacity adjustments, surface coatings, and modular structural designs to meet diverse client requirements.
Quality and reliability form the foundation of our business. We enforce strict multi-stage quality control—utilizing advanced automated ultrasonic testing, raw material stress analysis, and load-bearing fatigue assessments executed by a dedicated team of 45 QA/QC inspectors.
With annual export revenue reaching $28 million USD and a resilient global supply chain network of over 800 strategic raw material and component partners, we maintain steady delivery timelines worldwide. Our primary export markets span North America, Western Europe, Southeast Asia, and the Middle East. We proudly serve a diverse spectrum of global clients, ranging from large-scale third-party logistics (3PL) providers and industrial distributors to commercial warehouse developers and retail chain enterprises.
Understanding user intent and engineering challenges for modern warehouse facilities.
In the modern macroeconomic landscape, global supply chains require unprecedented storage optimization. Third-party logistics (3PL) providers, cold-chain operations, e-commerce fulfillment hubs, and heavy manufacturing facilities face identical challenges: escalating cost per square meter, labor constraints, and complex safety mandates. Industrial storage is no longer just "shelving"—it is a critical link in the high-velocity movement of cargo.
Maximizing volumetric footprint using vertical height. Our selective, push-back, and drive-in systems allow integration with automated storage and retrieval systems (AS/RS).
Engineering upright frames and structural beams to withstand localized seismic loads according to FEM 10.2.02, EN 15512, and ANSI MH16.1 protocols.
Guarding against corrosion in humid and cold-storage environments using heavy-duty, impact-resistant powder coatings and hot-dip galvanized steel.
Different industrial sectors demand specialized racking architectures to balance access velocity and packing density:
A deep dive into steel grade selection, cold-roll forming profiles, and surface treatment engineering.
The structural integrity of warehouse racking depends on precise engineering, material chemistry, and compliant manufacturing methods. Shenzhen Yuanzhang Trading Co., Ltd. ensures all materials meet or exceed global standards through strict raw material inspection and mechanical testing.
"A racking system's capacity is only as reliable as its steel chemistry and structural design calculations. Standardizing on high-grade Q235B and Q355B structural steel ensures predictable yield and tensile strengths under maximum static load configurations."
We source structural steel from tier-one steel plants. Carbon and manganese ratios are monitored to optimize weldability, ductility, and cold-rolling capability:
| Steel Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Key Applications |
|---|---|---|---|
| Q235B (Equivalent to S235JR) | ≥ 235 MPa | 370 - 500 MPa | Standard light to medium duty beams, wire decking, bracing panels. |
| Q355B (Equivalent to S355JR) | ≥ 355 MPa | 470 - 630 MPa | Heavy-duty upright columns, seismic bracing, high-capacity beams (>1500kg/pallet). |
Our column roller pressing line utilizes a multi-station roll-forming sequence to form structural profiles without inducing micro-fractures. Upright columns feature up to 12 distinct bending folds. This geometric configuration shifts the shear center and increases resistance to torsional buckling under axial load paths.
Warehouse racking systems are subjected to fork-truck impacts, scrapes, and environmental moisture. Our automated multi-stage painting line includes:
Ensuring structural safety and regulatory compliance in North American, European, and Australian markets.
Shenzhen Yuanzhang Trading Co., Ltd. integrates quality control checks at every stage of production. With 45 dedicated QA/QC inspectors, raw materials and finished products are tested for compliance with international safety protocols:
To verify load calculations, representative samples from production lots are subjected to destructive and non-destructive stress tests:
Answers to technical questions from warehouse managers, structural engineers, and procurement agents.
A1: The main difference lies in the yield strength. Q355B has a yield strength of ≥ 355 MPa, which is roughly 50% higher than Q235B (≥ 235 MPa). Q355B is selected for load-bearing columns in heavy-duty or high-bay racking systems (heights exceeding 6 meters) and in high seismic risk zones. Q235B is commonly used for standard racking beams, spacer bars, and light-duty shelving systems.
A2: Selective racking is a FIFO (First-In, First-Out) system providing 100% immediate access to every pallet position. Push-back racking is a LIFO (Last-In, First-Out) system where pallets sit on nested carts that slide along inclined rails. When a forklift loads a pallet, it pushes the front pallet back. When unloading, gravity moves the next pallet forward. This system increases storage density by reducing forklift aisles.
A3: In cold storage environments down to -30°C, standard paint coatings can become brittle, leading to cracking and rust. We apply a specialized powder formulation designed for low-temperature applications, combined with a multi-stage zinc-phosphate pre-treatment. This maintains paint flexibility and prevents moisture ingress under temperature fluctuations.
A4: CE certification demonstrates compliance with strict structural engineering and factory production control standards (such as EN 15512 and EN 1090). For global buyers in markets like North America and the Middle East, CE certification serves as a third-party safety validation, indicating that the design calculations and load ratings have been verified by engineering tests.
A5: We offer customization for structural profiles (upright column depths, steel thicknesses from 1.5mm to 3.0mm), beam load-bearing capacities, column hole pitches (such as 50mm, 75mm, or 76.2mm), surface finishes (powder coating, galvanizing), and dimensions to match existing handling equipment.
A6: According to FEM and RMI standards, the maximum vertical deflection of a beam under its rated safe working load must not exceed L/200 of the span length (where L is the beam length). For a 2700mm beam, the maximum allowable deflection is 13.5mm. This deflection is structural and temporary, returning to flat when unloaded.
Browse our complete catalog of industrial shelving, heavy-duty racks, and specialized material systems.
Yuanzhang Rack