The LDJ400 The LDJ400 series multi-functional tunnel boring machine is a state-of-the-art equipment tailored for non-explosive tunnel excavation. This sophisticated machine employs high-frequency hammers or breaker hammers to shatter rocks. By leveraging bucket teeth or drill rods, it wedges into the surrounding rock, utilizing gravity to effortlessly break through it. (High-frequency hammers handle rocks below 40MPa, while breaker hammers tackle harder rocks). This machine boasts local control + wireless remote control capabilities and adapts to tunnel excavations ranging from 6 to 9.5 meters. It seamlessly integrates high-frequency rock breaking, rapid soft soil excavation, contour trimming, and spray dust removal functions, making it ideal for construction in areas with blasting restrictions (airports, residential zones, wildlife reserves). Highly versatile, it addresses diverse rock conditions, minimizes over- and under-excavation, and mitigates landslide risks.
Achieve comprehensive excavation efficiency for grade IV and V surrounding rocks up to an impressive 50m³/h.
Equipped with an efficient dust removal spray system, this machine effectively controls dust, ensuring a safe construction environment.
With a patented three-toothed or two-toothed base and a high-frequency breaker hammer, this machine achieves rapid rock-breaking speeds and powerful impacts.
Minimal Disturbance to Surrounding Rock: This non-explosive excavation method ensures minimal disturbance to the surrounding rock.
Precise Over- and Under-Excavation Control: The entire machine's movements are meticulously controlled, keeping over- and under-excavation within 20 centimeters, ensuring precision.
Remote Control: All machine movements are controlled remotely, providing ease and flexibility in operations. Operators can conveniently adjust positions as needed.
Diesel-Electric Dual Power System: Featuring diesel-powered emergency and transmission support alongside electric construction capabilities, this system minimizes construction costs, eliminates tunnel exhaust pollution, and reduces heat accumulation during construction.
Efficient Slag Discharge: Equipped with slag collecting and discharging devices, some models provide a robust slag discharge capacity of 180m³/h, meeting the rapid slag discharge needs of small-section equipment without site departure.
| LDJ400A series |
| Model |
LDJ400A-1 |
LDJ400A-2 |
LDJ400A-3 |
LDJ400A-4 |
| Transport dimensions (length × width × height) |
16000×3000×3600mm |
16000×3000×3600mm |
16000×3000×3600mm |
16000×3000×3600mm |
| Total weight |
82t |
82t |
82t |
82t |
| Engine power |
176kW |
176kW |
176kW |
176kW |
| Installed electrical power |
400kW |
400kW |
400kW |
400kW |
| Operating mode |
Electric construction +diesel-powered emergency |
Electric construction +diesel-powered emergency |
Electric construction +diesel-powered emergency |
Electric construction +diesel-powered emergency |
| Control mode |
Wireless remote control + manual control |
Wireless remote control + manual control |
Wireless remote control + manual control |
Wireless remote control + manual control |
| Operating voltage |
1140V |
1140V |
1140V |
1140V |
| Operating range (width × height) |
12×10m |
12×10m |
12×10m |
12×10m |
| Slag discharge function |
/ |
/ |
/ |
/ |
| High frequency hammer model |
H5 |
H8 |
H10 |
H12 |
| Operating speed |
1.5km/h |
1.5km/h |
1.5km/h |
1.5km/h |
| Adjustable cross-section height |
6~9.5m |
6~9.5m |
6~9.5m |
6~9.5m |
| Adjustable cross-section width |
≥6m |
≥6m |
≥6m |
≥6m |
| Excavation efficiency |
0~35m³/h |
0~50m³/h |
0~60m³/h |
0~70m³/h |
| Slag discharge efficiency |
/ |
/ |
/ |
/ |
| LDJ400B series |
| Model |
LDJ400B- 1 |
LDJ400B- 2 |
| Transport dimensions (length × width × height) |
16000×3000×3200mm |
16000×3000×3200mm |
| Total weight |
82t |
90t |
| Engine power |
410kW |
410kW |
| Installed electrical power |
/ |
400kW |
| Operating mode |
Diesel-powered construction |
Electric construction + diesel-powered construction |
| Control mode |
Wireless remote control + manual control |
Wireless remote control + manual control |
| Operating voltage |
/ |
1140V |
| Operating range (width × height) |
12×10m |
12×10m |
| Slag discharge function |
/ |
/ |
| High frequency hammer model |
H8 |
H8 |
| Operating speed |
1.5km/h |
1.5km/h |
| Adjustable cross-section height |
6~9.5m |
6~9.5m |
| Adjustable cross-section width |
≥6m |
≥6m |
| Excavation efficiency |
0~50m³/h |
0~50m³/h |
| Slag discharge efficiency |
/ |
/ |
| LDJ400C series |
| Model |
LDJ400C |
| Transport dimensions (length × width × height) |
16000×2800×3200mm |
| Total weight |
95t |
| Engine power |
210kW |
| Installed electrical power |
400kW |
| Operating mode |
Electric construction + diesel powered emergency |
| Control mode |
Wireless remote control + manual control |
| Operating voltage |
1140V |
| Operating range (width ×height) |
12×10mm |
| Slag discharge function |
√ |
| High frequency hammer model |
H8 |
| Operating speed |
1.5km/h |
| Adjustable cross-section height |
6~9.5m |
| Adjustable cross-section width |
≥6m |
| Excavation efficiency |
0~50m³/h |
| Slag discharge efficiency |
180m³/h |
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