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Product Description
As a premier manufacturer and direct supplier of heavy-duty infrastructure components, we introduce the 321-Bailey Panel Without Pin For Flexible Bridge Assembly.
Engineered for maximum adaptability, this structural unit provides project managers and procurement specialists with unparalleled versatility for both temporary and permanent constructions.
Features a direct-from-manufacturer pricing structure, significantly lowering initial acquisition expenditures.
Optimized for high-density global shipping, maximizing container space and reducing logistical overhead.
Maintains complete dimensional interchangeability with standard systems, ensuring immediate integration into existing inventories.
The 321-Bailey Panel Without Pin represents a strategic evolution in modular bridge engineering, meticulously crafted from premium high-strength steel. When you inspect the heavy-duty framework, the precision-drilled 51mm pin holes and bolt apertures speak to a manufacturing process defined by exacting tolerances. The cold, robust touch of the Q345B and Q355B steel surfaces ensures structural integrity under the most demanding load-bearing scenarios. By intentionally omitting the pre-installed pins, this structural panel transfers ultimate control directly into the hands of the site engineers. It allows for a seamless transition between rapid-deployment pin connections for emergency responses and fully bolted chord configurations for permanent, high-vibration infrastructure projects.
Beyond its immediate structural capabilities, this pin-less configuration fundamentally transforms logistical operations. The absence of protruding pins eliminates the risk of transit damage, corrosion, and component loss during extended maritime shipments. Project coordinators will immediately notice the streamlined stacking profile, which dramatically condenses the required storage footprint. Whether erecting a temporary support tower, outfitting a disaster relief warehouse, or constructing a dual-lane permanent crossing, this panel integrates flawlessly with existing inventories. It empowers construction teams to utilize custom pin lengths, specialized alloys, or high-strength bolts tailored precisely to the environmental and mechanical demands of the specific site, ensuring long-term reliability and superior fatigue performance.
The technical specifications of our structural panels are strictly controlled to ensure seamless integration, structural safety, and long-term durability. Below is the comprehensive data matrix detailing the exact parameters for your engineering evaluation.
Product Name | 321-Bailey Panel Without Pin For Flexible Bridge Assembly |
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Standard Dimensions | 3000mm x 1500mm x 176mm |
Reference Weight | Approx. 270 kg |
Pin Hole Diameter | 51 mm |
Main Material | 16Mn High-Strength Steel / Q345B / Q355B |
Connection Method | Bailey pin connection (rapid assembly) or chord bolt connection (permanent fixation) |
Optional Pin Material | Plain steel, alloy steel, stainless steel, coated pins, or high-strength bolt substitutes |
Hole Pitch Standard | Identical center distance to standard Bailey panels, fully interchangeable |
Storage Advantage | High-density stacking, saves 10%–15% storage space |
Quality Certification | ISO9001, meets national standards, material certificates and test reports provided |
Origin | Zhenjiang, Jiangsu, China (Direct from source manufacturer) |
Engineered to resolve complex logistical and structural challenges, this pin-less truss panel delivers tangible operational improvements. By rethinking the standard assembly unit, we provide a solution that enhances site safety, accelerates deployment, and reduces overall project expenditure.
Enhanced Fatigue Resistance: By enabling fully bolted connections instead of relying solely on traditional pins, the panel significantly improves vibration resistance, making it ideal for permanent heavy-traffic modifications.
Unrestricted Hardware Selection: Site managers are no longer constrained by pre-installed hardware. Select from plain steel, alloy steel, stainless steel, or specialized coated pins based on the precise environmental demands of the erection site.
Zero Transit Liability: The pin-less design completely eradicates the common issues of pin corrosion, thread damage, or outright loss during long-haul transportation to remote construction zones.
Seamless System Integration: Maintaining the exact center distances and 51mm hole diameters of standard panels ensures 100% interchangeability with existing bridge inventories and accessories.
Rapid Tool-Free Compatibility: For specialized rapid-erection applications, these panels flawlessly accommodate pre-grooved pins, allowing for instantaneous, tool-free hand insertion and locking mechanisms.
Our engineering approach addresses every phase of the product lifecycle, from initial fabrication to decades of active service. The following dimensions highlight how this specific configuration elevates standard infrastructure projects.
Manufactured from premium high-strength structural steel, ensuring the dimensions, material grades, and mechanical properties perfectly match standard Bailey configurations.
The deliberate pin-less design maintains the original high load-bearing capacity while unlocking superior anti-fatigue and seismic performance for modified, fully bolted bridge structures.
Precision fabrication guarantees that every bolt aperture and pin hole aligns flawlessly, eliminating on-site adjustment delays.
Shatters the limitations of pre-installed pins, granting construction teams unprecedented on-site autonomy to adapt to unforeseen structural demands.
Facilitates rapid pin assembly for temporary emergency repairs, while seamlessly transitioning to chord bolt connections for permanent, rigid bridge installations.
Perfectly accommodates the on-site installation of stainless steel pins, coated hardware, or custom-length long pins required for complex double-deck configurations or highly corrosive marine environments.
Purpose-built to optimize long-distance international maritime shipping and streamline emergency material stockpiling.
The smooth, pin-less profile allows for ultra-high-density stacking, directly translating to a 10% to 15% reduction in required warehousing and shipping volume.
Completely neutralizes the risk of pre-installed pins suffering from impact damage, rust accumulation, or accidental detachment during extended transit periods.
By stripping away the pre-installed pins, the base unit cost is significantly reduced, lowering the barrier for large-scale initial procurement.
Empowers equipment rental firms, military engineering units, and major contractors to utilize their existing hardware inventories, preventing redundant purchasing.
Dramatically increases the turnover rate and versatility of existing components, ensuring maximum return on investment for structural assets.
Acts as the ultimate universal component, equally suited for standard temporary crossings and highly engineered permanent bridge erections.
The preferred choice for remote export shipments, temporary support towers in mega-bridge projects, and rapid-response disaster relief reserves.
Integrates flawlessly into old bridge widening and modification projects, easily matching the standards of legacy pin systems already in place.
As a direct source manufacturer operating proprietary production lines, we guarantee uncompromising quality control backed by full ISO9001 certification.
Every shipment is accompanied by comprehensive material certificates and rigorous mechanical testing reports to satisfy the strictest engineering audits.
We provide an end-to-end technical partnership, offering complimentary structural calculations, custom CAD drawings, detailed manuals, and optional on-site supervisory services to eliminate all execution risks.
Installation Method Recommendation
First of all, an experienced construction team should be assigned to undertake the erection of the bridge.
We have studied the drawings of the erection site and surrounding area, and conclude that the installation site is spacious and flat,so we recommend the installation procedure as follows:
Assemble the bilateral bailey panels to two whole construction, including the lower chord reinforced、horizontal bracing、vertical bracing、male and female end post. every assembling unit is mainly composed by 27 pieces of bailey panel
Meanwhile, the bridge bearings are installed on the abutment. note that：check the length of the single whole bailey truss and the distance between the bolts of the two side of the river, if not fit , adjust the bolts.
Use suitable lorry-mounted crane to lift the two assembling truss unit and place them on the two side abutments.the single combined truss unit is weight about 11tons and 27.4 m length.
Install the transom, please refer the video.for the weight of one piece of transom is about not more than 1 ton，so it need a small crane. In order to increase the stability of the structure during the erection, the nearest transom and the farthest transom, as far as possible according to the capacity of the crane, should be installed first, then for other transoms between them.
Install the sway bracing，then pave the first row in width direction of bridge decking on the transoms, including the side and middle bridge decking.
Meanwhile, install the upper chord reinforced to strengthen the structure,then the crane could move onto the bridge decking to install the following ahead transoms,similar ways like upper procedure to be perform.
The rest can be done in the same manner.
Final, install the upper chord reinforced、curb、gap plate、handrail、 connective plate and handrail column.
Selecting the right manufacturing partner is as critical as the structural integrity of the steel itself. Our production facility is dedicated to engineering excellence, providing comprehensive support from the initial blueprint to the final structural load test.
Direct Source Manufacturing: Operating our own specialized production base in Zhenjiang, Jiangsu, we maintain absolute control over the metallurgical quality and fabrication precision of every steel component.
End-to-End Engineering Support: We do not merely supply hardware. Our in-house engineering team provides complimentary structural calculations, detailed CAD drawings, and bespoke customization to ensure your project's precise requirements are met.
Rigorous Quality Assurance: Every batch undergoes stringent testing. We operate under strict ISO9001 certification protocols, providing transparent material certificates, comprehensive test reports, and quality guarantees for complete procurement confidence.
Comprehensive Product Range: Beyond these specific panels, our main product lines encompass SJ-200 Steel Bridges, SJ-321 Bailey Bridges, chords, frames, deck panels, pins, bolts, and full sets of steel components.
To assist procurement teams and site engineers in making informed decisions, we have compiled the most critical technical and operational inquiries regarding our pin-less truss systems.
We are a direct manufacturer based in Zhenjiang, Jiangsu, operating our own advanced production base and dedicated manufacturing lines specialized entirely in steel bridges and structural components.
First, an experienced construction team must be assigned. For a spacious and flat site, the procedure is as follows:
Assemble the bilateral panels into two whole constructions (including lower chord reinforcements, horizontal/vertical bracing, and end posts). Each unit typically comprises 27 pieces. Install bridge bearings on the abutment and adjust bolts to fit the river span.
Use a suitable lorry-mounted crane to lift the assembled truss units (approx. 11 tons and 27.4m length each) onto the abutments.
Install the transoms using a small crane. To increase stability, install the nearest and farthest transoms first, followed by the intermediate ones.
Install the sway bracing, then pave the first row of bridge decking on the transoms. Simultaneously install the upper chord reinforcements so the crane can move onto the decking to continue ahead.
Repeat the process for the remaining sections, finally installing the curbs, gap plates, handrails, connective plates, and handrail columns.
The structural integrity remains identical to standard panels, as the dimensions, material (16Mn/Q345B/Q355B), and mechanical properties are exactly the same. The pin-less design actually offers the opportunity to increase rigidity by allowing the use of high-strength chord bolts for permanent, vibration-resistant connections.
Absolutely. Double-deck configurations often require custom long pins that standard pre-pinned panels cannot accommodate. Our pin-less panels provide the exact clearance and flexibility needed to insert specialized hardware seamlessly, matching different engineering standards.
We supply a comprehensive documentation package with every shipment. This includes ISO9001 certification records, raw material mill certificates, independent mechanical test reports, and final quality inspection certificates to satisfy the most rigorous engineering audits.
Yes, we provide detailed erection drawings, comprehensive manuals, and instructional videos. For complex topographies, our experienced supervisors are available for on-site direction, backed by our highly responsive 24-hour after-sales service team.
