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Medium Girder Bridge Heavy Duty & Robust
The medium-sized girder bridge is made of high-strength 7019 series aluminum alloy and has the characteristics of modular and rapid assembly. It can be erected manually by 9 to 12 people, supports MLC 70-level track load, and the maximum span can be extended to 49 meters, supporting bulk procurement.
7019 aluminum alloy
Material:
MLC70
Load:
manual rapid erection
Assembly:
Medium Girder Bridge Features
Guaranteed heavy-duty capacity and easy manual handling
The 7019 series aluminum-zinc-magnesium alloy conforming to aviation standards is adopted, and the yield strength exceeds 350MPa. Compared with the traditional steel bridge, the weight is reduced by 40%, while ensuring the heavy bearing capacity of MLC grade 70, the weight of a single component is not more than 200kg, which is convenient for manual handling.
Modular Precision Interchange Design
All components are produced by precision molds with tolerances controlled within 0.2mm to ensure seamless docking between the pin and the hole. The modular design allows only a single component to be replaced in the event of damage, eliminating the need to dismantle the entire bridge, and reducing maintenance costs by 60%.
Rapid erection without mechanical assistance
The structural design optimizes the mechanical transfer path without the need for heavy lifting equipment. A construction team of 12 people can complete the erection of 1 9.8-meter single-story bridge in 45 minutes, greatly shortening the response time of emergency projects.
Multi-level span and flexible structure switching
The system supports multiple configurations of single-layer, double-layer, and reinforced components. The single-layer structure is suitable for a short span of 9.8 meters, and the maximum span of the double-layer reinforced structure can reach 49.4 meters, which is flexible to adapt to rivers or gully obstacles of different widths.
Adapt to harsh wild and humid environments
The surface of aluminum alloy is treated with anodizing and special coating, and the salt spray test tolerance time is more than 1000 hours. Designed to have a fatigue life of more than 10,000 full-load traffic cycles, it is suitable for harsh field and humid environments.
Compatible with wheeled and tracked heavy vehicles
The bridge deck is wide and paved with anti-skid panels, which not only supports the passage of MLC 70 (about 63.5 tons) crawler excavators, but also carries MLC 100 (about 90 tons) wheeled transport vehicles to meet the traffic needs of heavy infrastructure equipment.
Medium Girder Bridge Detailed specifications table
| Parameter Items | Single Storey | Double Storey |
| Maximum span | 9.8 meters | 31.1 meters (reinforced version up to 49.4 meters) |
| Effective bridge deck width | 4.0 meters | 4.0 meters |
| Track load rating | MLC 70 (approximately 63.5 tons) | MLC 70 (approximately 63.5 tons) |
| Wheel load rating | MLC 70 | MLC 100 (approximately 90.7 tons) |
| Main materials | Aluminum-zinc-magnesium alloy | Aluminum-zinc-magnesium alloy |
| Setup time (12 people) | Approximately 45 minutes | Approximately 60-90 minutes |
| Maximum weight of component | < 200 kg (single piece) | < 200 kg (single piece) |
| Operating temperature range | -40°C to +50°C | -40°C to +50°C |
Medium Girder Bridge Applicable crowd
Large Infrastructure Project Manager
Suitable for projects with heavy machinery dispatch in remote areas or undeveloped terrain. The medium-sized beam bridge can quickly build a temporary channel for heavy equipment such as excavators and cranes to cross the gully to ensure that the progress of the project is not hindered by the terrain.
Emergency and Disaster Rescue Commander
For flood destroyed bridges or earthquake rescue scenarios, the product can restore the traffic lifeline at the fastest speed. Its lightweight design allows manual assembly by helicopter lifting to core disaster areas that vehicles cannot reach.
Mining and oil and gas field mining operators
It is applicable to the construction of temporary road network in complex terrain of mining area. Its high corrosion resistance and fatigue resistance can meet the traffic needs of high-frequency heavy-duty trucks in the mining area, and it is more cost-effective and flexible than permanent concrete bridges.
Electric power and hydraulic engineering construction unit
In the construction of transmission towers or dams, it is often necessary to transport supplies across rivers. The detachable and reusable characteristics of the bridge system greatly reduce the construction cost of temporary access roads, and can be recycled and reused in different places after the completion of the project.
Medium Girder Bridge Materials
This product is the core of the whole line of the 7019 series of aluminum zinc magnesium alloy. The alloy through a specific heat treatment process (T6 state), its tensile strength reached more than 360 MPa, while adding a trace of zirconium and manganese elements, in order to inhibit recrystallization and improve the ability to resist stress corrosion cracking, to ensure the structural stability in the field of high humidity and high salt environment.Medium Girder Bridge Lifetime and After Sales Service
Pre-sales and after-sales service
Provide on-site erection guidance and team practical training to ensure that construction personnel master unarmed assembly skills. Commitment to provide a 10-year spare parts supply guarantee, for damaged standard module components, guaranteed to issue replacement parts within 72 hours.
Expected useful life
In the case of standard maintenance and regular inspection of pin shaft wear, the design service life can reach more than 20 years. The main stressed members undergo full-scale fatigue testing, and it is recommended to perform a structural flaw detection inspection after every 1000 heavy loads.
factory and certificate
certificate
FAQ And Contact Us
Welcome to our Frequently Asked Questions page. We have compiled answers to common questions you may have, hoping to provide you with clear and quick solutions. If you cannot find the information you need here, please feel free to contact our customer support team.
Q1: What are the main differences between a medium beam bridge and a Bailey Bridge?
The medium-sized girder bridge is made of aluminum alloy, which is much lighter than the steel Baili bridge, and supports full manual rapid erection without cranes. The Baili bridge is usually heavier and takes longer to erect, but the cost is relatively low.
Q2: How much manpower and time is needed to erect the 1 standard medium-sized beam bridge?
For the 1 standard 31-meter double-decker bridge, a trained team of 9 to 12 people is usually required. Without the assistance of heavy machinery, a skilled team can complete the erection and open to traffic in 60 to 90 minutes.
Q3: Can the bridge withstand multiple vehicles?
The bridge is designed according to NATO MLC 70 standards and can withstand a combination of tracked vehicles of about 63.5 tons and wheeled trailers up to MLC 100 class (about 90 tons).
Q4: Can this bridge be reused?
You can. Medium girder bridges are modular systems designed for temporary and semi-permanent use. After the project is completed, it can be disassembled, palletized and transported to the next location for reassembly, and the components have a high degree of interchangeability.
Q5: What type of vehicle is needed to transport the bridge system?
Due to the compact design of the components, a complete standard span bridge system can usually be loaded in 1 to 2 standard flat-bed trucks or containers. The single piece weighs no more than 200kg and is very flexible in loading and unloading.
Q6: Does the product provide an erection kit?
Yes, each bridge system comes standard with a special erection kit, including but not limited to special wrenches, load-bearing beam rollers, push bridge rods and positioning pin assembly tools, to ensure that users can carry out assembly operations out of the box.
Please feel free to contact us. We look forward to hearing from you.
Medium Girder Bridge Heavy Duty & Robust
The medium-sized girder bridge is made of high-strength 7019 series aluminum alloy and has the characteristics of modular and rapid assembly. It can be erected manually by 9 to 12 people, supports MLC 70-level track load, and the maximum span can be extended to 49 meters, supporting bulk procurement.
Material:
7019 aluminum alloy
Load:
MLC70
Assembly:
manual rapid erection
Medium Girder Bridge Features
Guaranteed heavy-duty capacity and easy manual handling
The 7019 series aluminum-zinc-magnesium alloy conforming to aviation standards is adopted, and the yield strength exceeds 350MPa. Compared with the traditional steel bridge, the weight is reduced by 40%, while ensuring the heavy bearing capacity of MLC grade 70, the weight of a single component is not more than 200kg, which is convenient for manual handling.
Modular Precision Interchange Design
All components are produced by precision molds with tolerances controlled within 0.2mm to ensure seamless docking between the pin and the hole. The modular design allows only a single component to be replaced in the event of damage, eliminating the need to dismantle the entire bridge, and reducing maintenance costs by 60%.
Rapid erection without mechanical assistance
The structural design optimizes the mechanical transfer path without the need for heavy lifting equipment. A construction team of 12 people can complete the erection of 1 9.8-meter single-story bridge in 45 minutes, greatly shortening the response time of emergency projects.
Multi-level span and flexible structure switching
The system supports multiple configurations of single-layer, double-layer, and reinforced components. The single-layer structure is suitable for a short span of 9.8 meters, and the maximum span of the double-layer reinforced structure can reach 49.4 meters, which is flexible to adapt to rivers or gully obstacles of different widths.
Adapt to harsh wild and humid environments
The surface of aluminum alloy is treated with anodizing and special coating, and the salt spray test tolerance time is more than 1000 hours. Designed to have a fatigue life of more than 10,000 full-load traffic cycles, it is suitable for harsh field and humid environments.
Compatible with wheeled and tracked heavy vehicles
The bridge deck is wide and paved with anti-skid panels, which not only supports the passage of MLC 70 (about 63.5 tons) crawler excavators, but also carries MLC 100 (about 90 tons) wheeled transport vehicles to meet the traffic needs of heavy infrastructure equipment.
Medium Girder Bridge Detailed specifications table
| Parameter Items | Single Storey | Double Storey |
| Maximum span | 9.8 meters | 31.1 meters (reinforced version up to 49.4 meters) |
| Effective bridge deck width | 4.0 meters | 4.0 meters |
| Track load rating | MLC 70 (approximately 63.5 tons) | MLC 70 (approximately 63.5 tons) |
| Wheel load rating | MLC 70 | MLC 100 (approximately 90.7 tons) |
| Main materials | Aluminum-zinc-magnesium alloy | Aluminum-zinc-magnesium alloy |
| Setup time (12 people) | Approximately 45 minutes | Approximately 60-90 minutes |
| Maximum weight of component | < 200 kg (single piece) | < 200 kg (single piece) |
| Operating temperature range | -40°C to +50°C | -40°C to +50°C |
Medium Girder Bridge Applicable crowd
Large Infrastructure Project Manager
Suitable for projects with heavy machinery dispatch in remote areas or undeveloped terrain. The medium-sized beam bridge can quickly build a temporary channel for heavy equipment such as excavators and cranes to cross the gully to ensure that the progress of the project is not hindered by the terrain.
Emergency and Disaster Rescue Commander
For flood destroyed bridges or earthquake rescue scenarios, the product can restore the traffic lifeline at the fastest speed. Its lightweight design allows manual assembly by helicopter lifting to core disaster areas that vehicles cannot reach.
Mining and oil and gas field mining operators
It is applicable to the construction of temporary road network in complex terrain of mining area. Its high corrosion resistance and fatigue resistance can meet the traffic needs of high-frequency heavy-duty trucks in the mining area, and it is more cost-effective and flexible than permanent concrete bridges.
Electric power and hydraulic engineering construction unit
In the construction of transmission towers or dams, it is often necessary to transport supplies across rivers. The detachable and reusable characteristics of the bridge system greatly reduce the construction cost of temporary access roads, and can be recycled and reused in different places after the completion of the project.
Medium Girder Bridge Materials
This product is the core of the whole line of the 7019 series of aluminum zinc magnesium alloy. The alloy through a specific heat treatment process (T6 state), its tensile strength reached more than 360 MPa, while adding a trace of zirconium and manganese elements, in order to inhibit recrystallization and improve the ability to resist stress corrosion cracking, to ensure the structural stability in the field of high humidity and high salt environment.Medium Girder Bridge Lifetime and After Sales Service
Pre-sales and after-sales service
Expected useful life
Know Us and Contact Us
Get a Free Quote Today.
FAQ
Q1: What are the main differences between a medium beam bridge and a Bailey Bridge?
The medium-sized girder bridge is made of aluminum alloy, which is much lighter than the steel Baili bridge, and supports full manual rapid erection without cranes. The Baili bridge is usually heavier and takes longer to erect, but the cost is relatively low.
Q2: How much manpower and time is needed to erect the 1 standard medium-sized beam bridge?
For the 1 standard 31-meter double-decker bridge, a trained team of 9 to 12 people is usually required. Without the assistance of heavy machinery, a skilled team can complete the erection and open to traffic in 60 to 90 minutes.
Q3: Can the bridge withstand multiple vehicles?
The bridge is designed according to NATO MLC 70 standards and can withstand a combination of tracked vehicles of about 63.5 tons and wheeled trailers up to MLC 100 class (about 90 tons).
Q4: Can this bridge be reused?
You can. Medium girder bridges are modular systems designed for temporary and semi-permanent use. After the project is completed, it can be disassembled, palletized and transported to the next location for reassembly, and the components have a high degree of interchangeability.
Q5: What type of vehicle is needed to transport the bridge system?
Due to the compact design of the components, a complete standard span bridge system can usually be loaded in 1 to 2 standard flat-bed trucks or containers. The single piece weighs no more than 200kg and is very flexible in loading and unloading.
Q6: Does the product provide an erection kit?
Yes, each bridge system comes standard with a special erection kit, including but not limited to special wrenches, load-bearing beam rollers, push bridge rods and positioning pin assembly tools, to ensure that users can carry out assembly operations out of the box.
