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Product Description
Direct manufacturer supply ensuring optimal project cost-efficiency
Engineered for extreme high-capacity structural load requirements
Precision-crafted for seamless and rapid modular assembly
Hot-dip galvanized surface for maximum environmental resilience
Comprehensive global logistics and dedicated technical support
The SJ-200 Steel Bridge Beam represents the pinnacle of structural engineering, forged to conquer the most demanding infrastructural challenges across the globe. When you run your hands along the cold, unyielding surface of the hot-dip galvanized steel, you immediately feel the meticulous craftsmanship designed to withstand decades of harsh environmental exposure. Each beam is precision-cut and seamlessly welded, ensuring that when the heavy-duty pins and bolts lock into place, they emit a resounding, solid metallic click—a true testament to flawless manufacturing tolerances. This component is not merely a piece of metal; it is the critical artery of a modular crossing system that connects isolated regions, supports massive engineering vehicles, and restores vital transportation lifelines in record time.
By integrating these robust beams into your construction projects, you eliminate the unpredictable delays associated with traditional concrete curing and bespoke steel fabrication. The standardized, highly interchangeable nature of these beams empowers project managers to rapidly deploy secure, high-capacity crossings over unpredictable rivers, deep ravines, and unstable terrain. Whether navigating the dense, corrosive humidity of a tropical jungle or the biting, abrasive winds of a high-altitude mountain pass, these structural elements maintain their absolute integrity. They deliver unwavering stability, ensuring that every heavy transport truck, construction crane, or daily commuter vehicle rolls across the deck with absolute safety and confidence.
Product Name | SJ-200 Steel Bridge Beam For Bailey Bridge Construction |
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Bridge Models | SJ-200 (Equivalent to International Standard HD200/CB200), SJ-321 (Equivalent to International Standard CB100/321) |
Core Components | Bailey panel, Chords, Frames, Deck panels, Transoms, Pins & bolts |
Single Span Capacity | 6m - 67m |
Multi-Span Capacity | Greater than 67m (Requires intermediate bridge piers) |
Load Capacity | 10 Tons - 120 Tons |
Deck Width Options | 3.15m (Light transit/Small span), 4.2m (International standard single-lane), 7.35m (Double-lane) |
Standard Panel Dimensions | 3m x 1.5m / 3m x 2.2m |
Surface Treatment | Hot-dip Galvanized |
Quality Certification | ISO9001 certified, meets national standards, material certificates and test reports provided |
Customization Services | Free structural mechanics calculation, engineering CAD drawing design, and non-standard customization |
Installation Support | Drawings, manuals, video guidance provided; on-site supervision and 24-hour after-sales service available |
Our structural beams are engineered to transform complex crossing challenges into straightforward, manageable solutions. By focusing on intelligent design and robust material properties, we provide infrastructure components that deliver immediate value and long-term reliability for your most critical developments.
Accelerated Project Timelines: The highly standardized nature of these components drastically reduces on-site fabrication time, allowing for rapid deployment and immediate use upon assembly completion.
Exceptional Environmental Resistance: The premium hot-dip galvanized coating acts as an impenetrable shield against moisture, salt, and chemical corrosion, significantly extending the lifespan of the structure.
Uncompromised Structural Integrity: Forged from high-yield steel, these beams resist deformation under extreme dynamic loads, ensuring a smooth and secure transit experience for heavy machinery.
Resource Optimization: The interchangeable nature of the parts means lower inventory requirements and the ability to repurpose the materials for future infrastructural needs, maximizing your investment.
When evaluating infrastructure materials, absolute load-bearing certainty is non-negotiable. The SJ-200 framework is meticulously engineered to offer extraordinary adaptability across diverse topographical challenges. For single-span requirements, these beams effortlessly bridge gaps from 6 meters up to a massive 67 meters without the need for intermediate support.
Infinite Multi-Span Extension: When crossing wider expanses, the system seamlessly transitions into a multi-span configuration, utilizing strategically placed piers to extend infinitely across vast rivers or valleys.
Massive Weight Tolerance: The true engineering marvel lies in its immense load capacity, securely accommodating everything from 10-ton light transit to 120-ton heavy engineering machinery.
Versatile Application: This makes the system the ultimate choice for temporary bypasses, remote access roads, and critical heavy-duty construction corridors where failure is not an option.
The brilliance of the SJ-200 and SJ-321 systems lies in their absolute standardization and modular ingenuity. Every Bailey panel, chord, and transom is manufactured to precise, uniform dimensions, such as the standard 3m x 1.5m or 3m x 2.2m panels, ensuring complete interchangeability on the construction site.
Adaptable Width Configurations: This modularity allows procurement teams to order a single inventory of parts that can be configured into multiple bridge widths. Whether your project demands a compact 3.15-meter width for light transit, a standard 4.2-meter single lane, or a spacious 7.35-meter double-lane highway, the components adapt flawlessly.
Future-Proof Infrastructure: This design philosophy guarantees that as your project scales, the structure can be easily widened, reinforced, or entirely dismantled and relocated to a new site with minimal material waste, offering unparalleled asset flexibility.
Installation Method Recommendation
Time is the most critical resource in any infrastructure development. To alleviate the heavy burden on construction teams, this system is optimized for rapid, straightforward erection. An experienced construction team should be assigned to undertake the erection of the bridge. Assuming a spacious and flat installation site, we recommend the following highly efficient installation procedure:
Initial Assembly: Assemble the bilateral bailey panels into two whole constructions, including the lower chord reinforced, horizontal bracing, vertical bracing, and male/female end posts. Every assembling unit is mainly composed of 27 pieces of bailey panel. Meanwhile, install the bridge bearings on the abutment. Note: Check the length of the single whole bailey truss and the distance between the bolts on the two sides of the river; if they do not fit, adjust the bolts accordingly.
Lifting and Placement: Use a suitable lorry-mounted crane to lift the two assembling truss units and place them on the two side abutments. The single combined truss unit weighs about 11 tons and is 27.4 meters in length.
Transom Installation: Install the transom (refer to our provided video guides). Since the weight of one piece of transom is not more than 1 ton, a small crane is sufficient. To increase structural stability during erection, the nearest transom and the farthest transom (within the crane's capacity) should be installed first, followed by the other transoms between them.
Sway Bracing and Decking: Install the sway bracing, then pave the first row in the width direction of the bridge decking on the transoms, including the side and middle bridge decking. Meanwhile, install the upper chord reinforced to strengthen the structure. The crane can then move onto the bridge decking to install the transoms ahead, repeating the upper procedure.
Continuous Erection: The rest of the structure can be systematically completed in the same highly efficient manner.
Final Finishing: Finally, install the upper chord reinforced, curb, gap plate, handrail, connective plate, and handrail column to complete a secure, fully functional crossing.
Safety in structural engineering cannot be left to chance. Every single beam, pin, and bolt undergoes a rigorous, multi-tiered quality control process before it ever leaves our manufacturing facility. Backed by full ISO9001 certification and strict adherence to national engineering standards, we eliminate the anxiety of structural failure.
Pre-Assembly Verification: To guarantee absolute precision on site, we conduct comprehensive pre-assembly tests at our factory, ensuring that every bolt hole aligns perfectly and every component locks together with flawless geometry.
Transparent Documentation: Upon delivery, clients receive an exhaustive documentation package, including certified material test reports, quality certificates, and detailed metallurgical analyses.
Global Compliance: This uncompromising dedication to quality assurance ensures that your infrastructure investment remains secure, stable, and fully compliant with the highest global safety regulations.
No two topographies are exactly alike, and off-the-shelf solutions rarely meet the nuanced demands of complex terrains. We provide an unparalleled level of technical soft power to support your project from the initial concept to the final blueprint.
Complimentary Structural Calculations: Our dedicated team of structural engineers offers free, in-depth structural mechanics calculations to verify the absolute safety of your proposed crossing.
Bespoke CAD Drafting: We provide highly detailed CAD drawing designs tailored specifically to your site's unique topography, span requirements, and anticipated traffic loads.
Precision Matching: This bespoke customization service ensures that the proposed bridge architecture aligns perfectly with your environmental constraints. Project developers receive precise, data-backed blueprints that optimize material usage and prevent costly over-engineering.
Transporting massive structural steel components across oceans requires a scientifically calculated logistics strategy to prevent damage and loss. We have engineered a highly secure, classified packaging system designed to withstand the harshest global transit conditions.
Secure Component Housing: Critical small components, such as high-tensile pins and precision-threaded bolts, are hermetically sealed and packed into ultra-durable, high-strength steel boxes to prevent any risk of misplacement or saltwater corrosion during extended sea freight.
Optimized Heavy Freight: The primary heavy steel components, including the main beams and deck panels, are strategically loaded into standard shipping containers or arranged as secured bulk cargo, utilizing custom dunnage to prevent shifting.
Pristine Arrival: This meticulous approach to global logistics guarantees that every component arrives at your remote site in pristine, ready-to-assemble condition, entirely eliminating delays caused by transit damage.
Choosing the right manufacturing partner is just as critical as selecting the right materials. As a direct, source-level manufacturer based in Zhenjiang, Jiangsu, we operate a massive, state-of-the-art production base dedicated exclusively to the fabrication of modular bridges and their precise components.
Direct Source Advantage: By controlling the entire supply chain from raw steel procurement to final galvanization, we bypass intermediaries, delivering unparalleled value directly to your project ledger.
Dedicated Production Lines: Our specialized facilities are equipped with advanced machinery designed specifically for the rigorous demands of heavy-duty bridge component manufacturing.
Unwavering Support: Our commitment extends far beyond the factory floor. We provide a robust 24-hour all-weather after-sales support system. Whether you require immediate on-site supervision from our master technicians or urgent troubleshooting during an assembly shift, our support infrastructure ensures your project proceeds without interruption.
In the high-stakes realm of infrastructure development, reliability is the ultimate currency. We stand apart not merely as a fabricator of steel, but as a comprehensive solutions provider dedicated to the success of your most challenging projects. Our deep-rooted expertise in modular structural engineering allows us to anticipate potential site challenges before they manifest, providing proactive solutions that save critical time and resources. We fuse traditional heavy-duty manufacturing with advanced metallurgical science, ensuring every component we forge delivers uncompromising strength.
When you partner with us, you gain direct access to the manufacturing source—eliminating communication bottlenecks and securing a transparent, highly responsive supply chain. We are committed to empowering your construction initiatives with unparalleled structural integrity, seamless global logistics, and an unwavering dedication to your project's ultimate success from the drawing board to the final structural inspection.
We are a direct manufacturer based in Zhenjiang, Jiangsu. We operate our own expansive production base and utilize specialized manufacturing lines dedicated entirely to the fabrication of high-quality bailey bridges and their associated structural parts.
Our core product lineup includes the highly robust SJ-200 Steel Bridge and the SJ-321 Bailey Bridge. We manufacture all essential components, including bailey panels, chords, structural frames, heavy-duty deck panels, high-tensile pins, precision bolts, and a full suite of complementary steel components.
Absolutely. We understand that every terrain is unique. We provide complimentary structure mechanics calculations, detailed engineering drawings, and comprehensive customization services to ensure our components perfectly match your specific topographical and load-bearing requirements.
Quality and safety are our highest priorities. We have proudly obtained ISO9001 certification, and all our products strictly meet rigorous national engineering standards. Furthermore, comprehensive material certificates, detailed test reports, and official quality certificates are readily available for your review and compliance needs.
Yes, we offer extensive installation support. Every shipment can be accompanied by detailed engineering drawings, comprehensive assembly manuals, and step-by-step video guides. For complex projects, on-site supervision by our expert technicians is available, fully backed by our responsive 24-hour after-sales service team.
