English 
SJ-2X4
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Product Description
Sourced directly from a premier manufacturer and supplier, this heavy-duty modular bridge component is engineered to streamline large-scale infrastructure projects. Delivering a seamless blend of structural integrity and rapid deployment, it serves as the ultimate solution for demanding engineering environments.
Fabricated from premium high-strength steel for exceptional load-bearing capacity.
Standardized modular dimensions to ensure rapid, hassle-free assembly on site.
Engineered for versatile deployment across temporary and semi-permanent structural applications.
When project timelines are tight and environmental conditions are unforgiving, the structural integrity of your bridging components dictates the success of your entire operation. This high-strength steel modular panel is meticulously crafted to eliminate the guesswork from heavy-duty infrastructure development. Running your hands along the robust steel framework, you can immediately feel the precision of the full penetration welds and the smooth, industrial-grade finish designed to resist harsh elemental wear. The heavy, solid resonance of the metal when engaged with connecting pins speaks volumes about its uncompromising rigidity under dynamic loads, assuring your engineering teams of its absolute reliability.
Beyond its imposing physical presence, this component fundamentally transforms how procurement and construction teams approach terrain challenges. By utilizing a highly standardized geometry, it eradicates the frustrating delays typically associated with bespoke bridge construction. Your crews can seamlessly lock the panels into place, hearing the satisfying, secure click of the pin-connected structure as it forms an unyielding backbone for heavy vehicular and pedestrian traffic. Whether spanning a sudden gully on a remote agricultural site or providing a critical transition access route for municipal pipeline maintenance, this unit ensures that your operations continue without interruption, safeguarding both your personnel and your project deadlines.
Technical Parameters
Product | Dimension-mm | Weight-kg | Material |
SJ-2x4 Bailey Panel | 2000*4000 | 650 | Q355B |
Every element of this modular framework has been engineered with a singular focus: maximizing operational uptime while minimizing on-site complications. The architecture of the panel guarantees that your teams spend less time troubleshooting and more time advancing the project forward.
Optimized Size & Standard Modular Design: Adopting strict dimensional control, the 2m×4m geometry features high matching precision. This strong interchangeability enables fast assembly and disassembly, dramatically improving construction efficiency and reducing labor costs.
Perfect Balance of Weight & Strength: Intelligently designed for straightforward transportation and lifting. Constructed from high-strength steel, it delivers outstanding load capacity, rigidity, and stability specifically tailored for heavy-load bridge structures.
High-Strength Welding & Reliable Connection: Key stress parts utilize full penetration welding coupled with precision machining. The pin-connected structure ensures absolute firmness under dynamic loads, providing exceptional durability and safety for repeated, long-term use.
Wide Application & Strong Adaptability: This heavy-duty truss is widely utilized in temporary bridges, trestles, emergency rescue operations, and comprehensive engineering support. It can be flexibly combined into various spans to adapt effortlessly to complex, unpredictable construction environments.
Product Uses
1. Rural & farm crossing bridges over gullies
2. Temporary pedestrian & light vehicle bridges on construction sites
3. Internal passage for factories and parks across ditches
4. Temporary bridges for water conservancy and small rivers
5. Transition access for municipal and pipeline maintenance
6. Simple traffic connection for forestry and pastoral areas
Installation Method Recommendation
To fully appreciate the transformative impact this modular component brings to modern infrastructure, it is essential to examine the core dimensions of its engineering excellence. Each aspect is meticulously calibrated to resolve specific logistical and structural challenges faced by project directors.
Material & Strength: Forged from Q355B high-strength steel, this panel achieves an unparalleled equilibrium between manageable weight and immense structural fortitude. It exhibits extraordinary rigidity and stability under dynamic loads, ensuring the absolute safety of heavy-duty bridge structures during prolonged, repetitive deployments.
Dimensions & Modular Design: The standardized 2m×4m configuration is the result of rigorous dimensional control and standardized production protocols. This high precision guarantees flawless interchangeability, facilitating rapid transport, effortless hoisting, and swift on-site assembly to accelerate project timelines.
Manufacturing & Connection Process: Safety is engineered into every joint. Critical load-bearing sections undergo full penetration welding and meticulous machining. The resulting high-strength pin-connected architecture guarantees an unshakeable bond between components, entirely eliminating structural vulnerabilities in complex operational scenarios.
Adaptability & Applications: Offering supreme flexibility, these units can be seamlessly combined to create custom spans tailored to challenging topographies. They are the definitive solution for rural gully crossings, temporary construction site thoroughfares, internal factory passages, water conservancy bridges, and rapid emergency response deployments.
Installation & Erection Support: We drastically lower the barrier to execution by providing exhaustive installation guides, including detailed drawings, comprehensive manuals, and visual video aids. With strategic recommendations for crane deployment and transom installation sequences, alongside available on-site supervision, your team's safety and efficiency are guaranteed.
Quality Control & Certifications: Procure with absolute confidence. As a direct manufacturing source, our operations are fully ISO9001 certified, with all products strictly adhering to national standards. Comprehensive material certificates, rigorous test reports, and quality assurance documents are readily available to satisfy the most stringent engineering inspections.
Customization & Engineering Services: We offer an end-to-end partnership that extends far beyond the physical product. Benefit from complimentary structural calculations, bespoke architectural drawings, and non-standard customization, all backed by a responsive 24-hour after-sales service network dedicated to ensuring your project's flawless execution.
Sourcing critical infrastructure components requires a partner who understands the high stakes of large-scale engineering. We do not just supply steel structures; we deliver certainty, reliability, and unparalleled technical backing to ensure your project's success from conception to completion.
Direct Manufacturing Authority: Operating from our own specialized production base, we maintain complete control over the manufacturing lifecycle. This direct oversight guarantees that every component meets our exacting standards before it reaches your site.
Uncompromising Quality Assurance: Quality is not an afterthought; it is woven into our DNA. With strict adherence to ISO9001 protocols and comprehensive testing regimes, we provide the documented proof required to satisfy rigorous safety and compliance audits.
Expert Technical Consultation: Our dedicated engineering team provides free, in-depth structural calculations and bespoke CAD drawings. We ensure that the components you receive are perfectly calibrated to the unique span and load requirements of your specific topography.
Streamlined Deployment Ecosystem: We understand that time is your most valuable resource. By supplying meticulously matched components—from chords and frames to deck panels and bolts—alongside step-by-step erection guidance, we empower your crews to build faster and safer.
Responsive Lifecycle Support: Infrastructure demands do not adhere to standard business hours. Our 24-hour support network and optional on-site supervision mean that expert assistance is always available, mitigating risks and resolving on-site challenges instantaneously.
To assist your procurement and engineering teams in making informed decisions, we have compiled detailed responses to the most critical inquiries regarding our structural components and support services.
We operate as a direct manufacturing facility based in Zhenjiang, Jiangsu, with our own dedicated production base and specialized lines for bridge components. This allows us to maintain stringent quality control and provide direct-from-factory accountability to our clients.
We offer a comprehensive suite of pre-construction services tailored to your project's unique demands. Our engineering support includes:
Complimentary structural load calculations to ensure absolute safety.
Customized architectural and assembly drawings.
Bespoke structural modifications to accommodate non-standard spans or topographies.
Compliance and safety are paramount in heavy infrastructure. For every shipment, we can provide a complete documentation package, which includes:
ISO9001 certification records.
Detailed material certificates verifying the integrity of the Q355B high-strength steel.
Comprehensive factory test reports and official quality assurance certificates.
We have developed a robust support system to ensure safe and efficient erection, even in challenging terrains. We highly recommend assigning an experienced construction team, and we support them with:
Detailed assembly drawings and step-by-step instruction manuals.
Instructional video guides demonstrating critical steps, such as transom and sway bracing installation.
Optional on-site supervision by our technical experts to oversee the deployment of bilateral panels and combined truss units.
Handling heavy structural elements requires precise logistical planning. Based on standard spacious and flat installation sites, we advise the following sequence:
First, assemble the bilateral panels into two whole units (typically 27 pieces per unit, weighing approximately 11 tons and measuring 27.4m in length).
Utilize a suitably rated lorry-mounted crane to lift these combined units onto the prepared abutments, carefully checking the distance between bolts.
For subsequent transom installation (maximum 1 ton each), employ a smaller crane, starting with the nearest and farthest transoms to maximize structural stability during the ongoing erection process.
