The LG312K The LG312K intelligent arch integrated trolley is a marvel of modern engineering, seamlessly integrating multiple essential processes such as surveying and setting out, under-excavation operations, arch installation, and mesh and connecting bar welding (optional). Its versatile capabilities extend to explosive charging and beyond, allowing for complete excavation and arch installation in a single operation without repositioning the machine. This powerhouse is built on a robust engineering chassis and is equipped with a dual power system (diesel and electric), offering exceptional traction, flexibility, and maneuverability on various complex tunnel pavements. The boom is controlled via a wireless remote and manual control, ensuring ease of use, enhanced safety, high-speed operations, superior efficiency, and energy savings.
Expandable Man Basket: Our innovative equipment comes with an expandable man basket, providing a spacious working area that can comfortably accommodate 3-6 personnel. This versatile basket is ideal for tasks such as loading explosives and anchor rods.
High Efficiency: The LG312K features a state-of-the-art three-arm structure, complemented by three grippers and three hanging baskets. This setup allows for full section, two-step, and three-step construction methods. Impressively, the entire vertical frame construction process can be completed in approximately one hour, ensuring unmatched efficiency.
Installation of Precast Arch: Utilizing our patented multi-frame precast arch technology (patent No. ZL202022537953.5), the LG312K significantly reduces the duration and risk associated with dangerous working conditions. This innovation not only enhances safety but also boosts overall construction efficiency.
Reduction of Number of Operators: The LG312K is designed for optimal efficiency, allowing the entire construction operation to be performed by just 3-4 operators, a stark contrast to the 8 or more personnel required for traditional methods.
Auxiliary Function Integration: Equipped with a breaking hammer, our advanced equipment facilitates seamless under-excavation operations immediately after the arch installation, enhancing operational fluidity.
Small Overall Dimensions: Designed with a lightweight and compact structure, the LG312K is perfectly suited for small section construction conditions, offering unparalleled adaptability.
Equipment Informatization (Optional): For those seeking cutting-edge technology, the LG312K offers optional equipment informatization features. These include cluster management, positioning function, video monitoring, interphone function, pre-alarm function, data management, tunnel BIM technology and digital twin, construction report management, tunnel contour scanning, and remote control functionalities.
| 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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