The LG312K Introducing the intelligent arch integrated trolley, the epitome of modern engineering brilliance. This state-of-the-art machine seamlessly combines surveying, setting out, under-excavation, arch installation, mesh and connecting bar welding (optional), explosive charging, and more. Uniquely designed to perform a one-time excavation and arch installation without repositioning, it epitomizes efficiency and precision. The robust engineering chassis, paired with dual power options (diesel and electric), a short wheelbase, and a compact body, ensures unparalleled maneuverability and traction in even the most challenging tunnel conditions. The boom, controllable via wireless remote and manual systems, offers exceptional operational ease. Experience unmatched safety, speed, efficiency, and energy savings with this innovative solution.
Expandable Man Basket: Our equipment boasts an expandable man basket, offering a spacious operating area that comfortably accommodates 3-6 personnel. Perfect for loading explosives and anchor rods, this feature enhances operational flexibility and safety.
High Efficiency: Adopting a sophisticated three-arm structure with three grippers and hanging baskets, this system supports full section, two-step, three-step, and various other construction methods. Remarkably, all vertical frame construction processes can be completed within approximately one hour, significantly boosting productivity.
Installation of Precast Arch: Leveraging our patented multi-frame precast arch technology (patent No. ZL202022537953.5), this system reduces both working duration and construction risks at hazardous sites, thereby drastically enhancing efficiency and safety.
Reduction of Number of Operators: Remarkably, the entire construction operation can be efficiently managed by just 3-4 operators, a stark contrast to the traditional requirement of 8 or more personnel, thereby reducing labor costs and improving safety.
Auxiliary Function Integration: Equipped with a breaking hammer, this machine allows for seamless under-excavation operations post-arch installation, ensuring a streamlined and efficient workflow.
Small Overall Dimensions: Engineered with a lightweight design and compact dimensions, this vehicle is the ideal solution for small section construction conditions, offering unparalleled flexibility and convenience.
Equipment Informatization (Optional): Embrace the future with our informatization options, including cluster management, positioning, video monitoring, interphone, pre-alarm functions, data management, tunnel BIM technology, digital twin, construction report management, tunnel contour scanning, and remote control capabilities.
| 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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