Engineered to comply with major European and American structural codes, ensuring seamless cross-system compatibility
Unlocking architectural potential, structural efficiency, and layout flexibility for heavy industrial infrastructure
In modern industrial and commercial development, the demand for open, unobstructed interior space has driven the adoption of big span steel structural buildings. These installations, typically characterized by clear spans exceeding 24 meters without internal columns, are the structural backbone of high-capacity aviation hangars, ultra-large logistics facilities, heavy industrial manufacturing hubs, and grand sports arenas. By transitioning load bearing away from intermediate vertical supports to highly engineered exterior envelopes, structural engineers can maximize internal volume, enabling the smooth flow of machinery, logistics conveyors, and large-scale assembly procedures.
Globally, the integration of advanced metallurgical processes and Building Information Modeling (BIM) has established steel as the premier material for big-span construction. Structural steel yields an unmatched strength-to-weight ratio, allowing engineers to construct lighter framing configurations that span enormous distances without excessive deflection. As companies transition toward automated warehousing, high-density shelving, and overhead crane operations, the demand for large open grids has shifted from a premium option to a fundamental requirement. OEM partners and custom factories are now challenged to produce engineered steel frameworks that not only withstand massive dead and live loads but also integrate modern sustainability features to lower the overall life-cycle carbon footprint of the building.
By eliminating intermediate vertical supports, operations can utilize maximum floor area for logistics, production routing, and heavy machinery operations without geometric limitations.
Utilizing high-tensile structural grades such as Q355B allows the frame to distribute seismic and heavy environmental wind forces down to structural anchor points efficiently.
Components are precision-engineered in the factory to dynamic dimensional tolerances of ±1mm, reducing overall build time, labor dependency, and site safety risks during execution.
A premier integrated entity coordinating advanced metallurgical engineering, global commerce, and custom fabrication
Zhuozhan Group stands as a diversified and innovative enterprise that seamlessly integrates scientific research, manufacturing, and sales. With a robust portfolio of specialized subsidiaries, including Laoting Zhuozhan International Trade Co., Ltd. and Hebei Shuangyang Metal Structure Co., Ltd., Zhuozhan Group has firmly established itself as a key player in the construction, scaffolding, and structural fabrication industries. By linking international trade platforms with production centers, we provide comprehensive, reliable engineering solutions directly to global markets.
Founded in 2014, Hebei Shuangyang Metal Structure Co., Ltd. is a pivotal subsidiary that has rapidly advanced to the forefront of the industry. The facility occupies a total land footprint of 13,132.68 square meters, with a construction area of 7,124.58 square meters. Shuangyang operates with more than 500 highly skilled employees and is equipped with over 150 sets of advanced machinery and equipment. Demonstrating a strong commitment to innovation, the enterprise has secured 15 national patents. Shuangyang’s industrial capability includes an annual output of 300,000 tons of steel pipes, 1 million tons of scaffolding, and 400,000 tons of adjustable steel supports, making it a critical supplier to both domestic and international markets.
Every production batch undergoes strict quality controls compliant with EN 12810/12811 and ISO 9001 standards
Quality Certification
ISO 9001 Certification
EN 12810 Standard Compliance
SGS Mechanical Testing Report
How our localized industrial network speeds delivery and lowers project overhead
The core advantage of sourcing OEM big span steel structural buildings from a specialized China factory lies in the scale of raw material acquisition, supply chain grouping, and logistical speed. Operating a specialized 40,000 square meter source factory, Zhuozhan Group combines massive manufacturing scale with raw steel sourcing and modern CNC machinery. This setup allows for continuous fabrication runs while keeping component tolerances within standard structural margins. Because structural components are engineered in close cooperation with China's largest iron and steel mills, we secure premium grade Q355B and Q235 carbon steel at stable pricing, protecting international buyers from unexpected cost spikes.
Logistical positioning plays an equally critical role in ensuring project timelines are met. Our facility is situated close to three of northern China's busiest deepwater ports: Jingtang Port, Tianjin Port, and Caofeidian Port. This geographic proximity allows us to load oversized steel girders, trusses, columns, and modular scaffolding containers onto shipping vessels within hours of production sign-off. By eliminating long overland transport times, we reduce domestic freight costs and protect precision metal products from moisture and early oxidation during transit. This strategic proximity translates directly to lower logistics fees and reliable deliveries for our global partners.
Strategic logistics coordination with Caofeidian, Jingtang, and Tianjin ports guarantees swift international customs clearing and export shipping times.
A sprawling 40,000 square meter factory floor delivers an annual production capacity exceeding 200,000 tons of high-grade steel structures.
A dedicated team of over 20 structural design engineers designs safe, functional, and site-ready drawings that match regional building codes.
We serve as a trusted structural supplier for tier-one global construction companies, including the CSCEC 4th and 8th engineering divisions.
A look at the mechanical chemistry and structural profiles that support modern industrial builds
Understanding the mechanical properties of materials is critical when selecting elements for large clear spans. At Zhuozhan Group, we manufacture components using Q355B low-alloy, high-strength structural steel. This grade is chosen for its superior yield point (minimum 355 MPa) and improved impact toughness under dynamic loading. When compared to basic carbon structural steel (Q235), the Q355B formulation yields a 1.5 times increase in single-point load bearing capacity, allowing it to withstand loads up to 10 tons per column or key node connection. This strength lets designers specify thinner profiles to carry identical loads, reducing overall structural weight by up to 33% without compromising safety margins.
Corrosion mitigation is key to long-term performance, especially in coastal zones or high-humidity industrial environments. To address this, our factory utilizes an advanced hot-dip galvanization process (compliant with EN ISO 1461). By submerging fabricated elements in molten zinc at approximately 450°C, a series of zinc-iron alloys are formed on the steel's surface. This protective barrier offers superior resistance to weathering, providing an average service life of over 10 years, and extending up to 15–20 years in normal industrial zones. This layer eliminates the need for field painting, keeping maintenance costs low throughout the structure's operating lifespan.
| Performance Indicator | High-Strength Q355B Steel (Our Standard) | Standard Q235 Carbon Steel | Direct Operational Benefit |
|---|---|---|---|
| Yield Strength (Mpa) | 355 Mpa Min (Thinner, stronger profiles) | 235 Mpa Min | Reduces structural profile size while carrying identical loads. |
| Single Node Load-Bearing Limit | Up to 10 Metric Tons (Tested & certified) | 6.5 Metric Tons | Supports long, column-free spans and overhead crane tracks. |
| Corrosion Barrier Method | Submersion Hot-Dip Galvanization (Zinc coating > 85μm) | Basic Electro-Plating or Anti-rust painting | Extends service life to 15–20 years, cutting structural maintenance overhead. |
| Dimensional Deflection Margins | Precision fabrication within ±1.0mm tolerance | Average standard structural range of ±3.0mm | Guarantees simple alignment and bolt connection during field assembly. |
| Assembly Speed Rate | 150–300 sq.m per worker daily | 50–80 sq.m per worker daily | Speeds construction cycles by up to 5x over older framing systems. |
Transparent manufacturing stages highlighting our environmental protection and emissions management
Detailed processing steps and environmental nodes for vertical load-bearing steel components
Raw steel pipes are cut to length. Noise (N) and steel solid scrap (S) are managed and recycled.
Precision hydraulic punching presses pierce structural connection points, producing noise and steel remnants.
Disc connection plates are welded onto steel tubes. Features fume collection hoods to capture welding gas (G).
Welded black steel structures are sent to certified facilities for hot-dip galvanization treatment.
Final components undergo quality inspection, thickness testing, and bundling before shipping.
Detailed processing steps and environmental nodes for horizontal connection beams and braces
Pipes are cut to size using clean electric band saws, generating noise and recyclable solid waste.
Pipe ends are shaped and prep-punched for connection casting inserts. Noise and solid scrap are managed.
Punched steel pipes are welded to cast ends. Equipped with dust and gas extraction systems.
Parts are treated in hot zinc baths to apply an even, protective layer against corrosion.
Locking pins are riveted into place, generating minor mechanical noise, before final loading.
Reviewing real-world applications of our scaffolding and structural systems on challenging jobsites
Important commercial considerations for international procurement officers and structural engineers
Modern steel procurement goes beyond checking raw steel prices per metric ton; it requires verifying full regulatory compliance, structural testing, and logistics coordination. Procurement managers must confirm that their chosen steel fabricator has implemented quality systems that comply with standard international frameworks. At Zhuozhan Group, our manufacturing process complies with ISO 9001:2015 quality standards. This ensures that raw materials remain traceable from the initial melting stage through to mechanical punch testing, welding thickness verification, and final hot-dip galvanization.
When executing projects involving OEM big span steel structural buildings, calculating total cost of ownership (TCO) should include field assembly times. Standard field-welded frames require specialized on-site labor and non-destructive testing (NDT), which can increase costs and introduce project delays. Our factory-prefabricated modular bolt structures minimize these issues. By pre-cutting, pre-drilling, and factory-welding structures within tight dimensional tolerances, on-site assembly becomes a bolt-together process. This approach reduces overall erection times, keeps crane rental hours down, and minimizes the risk of safety incidents, helping keep projects on schedule and within budget.
Every structural shipment is accompanied by Mill Test Certificates (MTC) matching standard EN 10204 3.1 requirements, validating chemical and mechanical properties.
Steel members are wrapped in heavy protective packaging and bundled in custom shipping racks, helping prevent surface scratching and physical bending during container transit.
Our engineering services accommodate structural calculations in AISC, Eurocode 3, or British Standards (BS), simplifying local building permit approvals.
Answers to technical and logistical questions on importing steel structures from our facility
Engineered to support heavy concrete forms and high-load scaffolding arrays
Zhuozhan
