The LDJ400 The LDJ400 series multi-functional tunnel boring machine is a state-of-the-art solution tailored for non-explosive tunnel excavation. Engineered for precision, this equipment utilizes advanced high-frequency hammers or breaker hammers to fragment rocks. The sophisticated design allows bucket teeth or drill rods to wedge into the surrounding rock, leveraging gravity to achieve automatic rock breakage. Ideal for rocks below 40MPa with high-frequency hammers, and for tougher rocks with breaker hammers, the LDJ400 adapts seamlessly to tunnel excavations ranging from 6 to 9.5 meters. Combining high-frequency rock breaking, swift soft soil excavation, contour trimming, and efficient spray dust removal, this equipment is perfect for construction in sensitive areas such as airports, residential zones, and wildlife reserves. Its unparalleled flexibility meets diverse construction requirements, minimizing over- and under-excavation, thereby preventing landslides and other potential issues.
Excavation Efficiency: Efficient excavation with up to 50m³/h for grade IV and V surrounding rocks;
Minimal Disturbance to Surrounding Rock: Our non-explosive excavation method ensures minimal disturbance to surrounding rock;
Precise Over- and Under-Excavation Control: Enjoy pinpoint accuracy with the machine's movement, controlling over- and under-excavation to within 20 centimeters;
Spray Dust Removal: The integrated dust removal spray system effectively manages dust, creating a safer construction environment;
High-Frequency Rock Breaking: Our patented three-toothed or two-toothed base coupled with a high-frequency breaker hammer ensures rapid rock breaking and strong impact;
Remote Control: The machine's operations are remotely controlled, enhancing convenience and allowing operators to adjust positions flexibly for optimal performance;
Diesel-Electric Dual Power System: Support for diesel-powered emergency and transmission alongside electric construction reduces costs, eliminates tunnel exhaust pollution, and minimizes heat accumulation during operations;
Efficient Slag Discharge: Equipped with slag collecting and discharging devices, some models boast a slag discharge capacity of 180m³/h, enabling rapid discharge of slag without leaving the site.
| 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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