The LG312K The intelligent arch integrated trolley, LG312K, masterfully unites numerous processes such as surveying, setting out, under-excavation, and arch installation. Additionally, it offers mesh and connecting bar welding (optional) and explosive charging. Remarkably, it accomplishes tunnel excavation and arch installation in a single operation without necessitating machine relocation. Built on an engineering chassis, the vehicle features a diesel-electric dual power system, compact body, and short wheelbase, ensuring outstanding maneuverability and traction. Its adaptability makes it ideal for diverse, challenging tunnel pavements. The boom, operable via wireless remote or manual control, facilitates seamless management of movements, ensuring safety, speed, high efficiency, and energy conservation.
Expandable Man Basket: The equipment includes an expandable man basket, offering ample operating space for 3-6 individuals. This feature is particularly useful for tasks like loading explosives and anchor rods.
High Efficiency: With its innovative three-arm structure, three grippers, and three hanging baskets, the equipment accommodates various construction methods such as full sections, two steps, and three steps. Remarkably, it completes all vertical frame construction processes in approximately one hour.
Installation of Precast Arch: Leveraging our patented multi-frame precast arch technology (Patent No. ZL202022537953.5), the equipment significantly reduces the working duration and minimizes construction risks at hazardous sites, thereby enhancing overall construction efficiency.
Reduction of Number of Operators: Our advanced system enables the entire construction operation to be efficiently managed by just 3-4 individuals, in contrast to traditional methods requiring 8 or more people.
Auxiliary Function Integration: Equipped with a breaking hammer, the system allows for under-excavation operations to commence immediately after arch installation.
Small Overall Dimensions: Designed with a lightweight and compact structure, the vehicle is perfectly suited for small section construction conditions.
Equipment Informatization (Optional): The system supports advanced features like cluster management, positioning, video monitoring, interphone communication, pre-alarm functions, data management, tunnel BIM technology, digital twin, construction report management, tunnel contour scanning, and remote control for enhanced operation and monitoring.
| Shipping dimensions (L × W × H) |
10000×2800×3300mm |
| Quality of complete machine |
25t |
| Engine power |
96kW |
| Electrical installed power |
87.5kW |
| Operating mode |
Electric construction + diesel emergency response |
| Control mode |
Wireless remote control + local operation |
| Operating voltage |
380V |
| Operating range (W × H) |
20×12m |
| Chassis form |
Engineering chassis |
| Driving mode |
Two-way drive |
| Drive and steering mode |
Four-wheel drive, two-wheel steering |
| Minimum ground clearance |
400mm (350mm leg) |
| Maximum climbing gradient |
32% |
| Turning radius |
15m (two wheels) |
| Maximum speed |
13.7km/h |
| Approach/departure angle |
17°/16° |
| Boom mode |
Two-stage telescopic type |
| Number of booms |
3 |
| Hanging basket mode |
Extensible |
| Number of baskets |
3 |
| Number of grippers |
3 |
| Maximum lifting capacity of intermediate arm |
1.5t |
| Maximum lifting capacity of left and right arms |
1.5t |
| Breaking hammer |
2 sets |
| Electric welding machine |
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| Four-wheel steering |
Hole cleaning device |
| Three electric welding machines |
Middle arm weight bearing 3t |
| Two remote controls |
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