The LDJ400 Introducing the LDJ400 Series Multi-functional Tunnel Boring Machine, a revolutionary piece of equipment designed specifically for non-explosive tunnel excavation. This superb machine employs a high-frequency hammer or breaker hammer to expertly fracture rocks, with bucket teeth or drill rods strategically wedging into the surrounding rock. By leveraging the gravity of the free face under the surrounding rock, it effortlessly breaks through even the toughest of materials. High-frequency hammers are ideal for rocks with a hardness below 40MPa, while breaker hammers handle more resilient and underdeveloped rocks. The machine boasts dual control modes-local and wireless remote control-catering to tunnel excavations ranging from 6 to 9.5 meters. It seamlessly integrates diverse functionalities, including high-frequency rock breaking, rapid soft soil excavation, contour trimming, and effective spray dust removal. Perfectly suited for environments where blasting is prohibited, such as airports, residential zones, and wildlife reserves, this versatile equipment adeptly meets the demands of varying rock formations. It minimizes over- and under-excavation, significantly reducing the risk of landslides and other construction challenges.
Achieve outstanding excavation efficiency with a remarkable rate of up to 50m³/h for grade IV and V surrounding rocks.
Our machine is equipped with a highly effective dust removal spray system, ensuring a safe and clean construction environment.
With patented three-toothed or two-toothed bases combined with a high-frequency breaker hammer, achieve rapid rock breaking and substantial impact power.
Excavation Efficiency: Achieve outstanding excavation efficiency with a remarkable rate of up to 50m³/h for grade IV and V surrounding rocks.
Minimal Disturbance to Surrounding Rock: Experience minimal turbulence to the surrounding rock, thanks to our non-explosive excavation method.
Precise Over- and Under-Excavation Control: Benefit from precise control over the entire machine's movements, managing over- and under-excavation of the contour surface within a tight 20-centimeter margin.
Remote Control: All machine movements are remotely controlled for utmost convenience and flexibility, allowing operators to adjust positions effortlessly.
Diesel-Electric Dual Power System: Our dual power system supports both diesel-powered emergencies and electric construction, reducing costs, eliminating tunnel exhaust pollution, and minimizing heat accumulation during operations.
Efficient Slag Discharge: Certain models are equipped with advanced slag collecting and discharging devices, with a remarkable discharge capacity of 180m³/h, catering to small-section equipment for swift slag removal without needing to exit 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 |
FAQ
1,What can you buy from us?
Our current main products include comprehensive solutions for underground engineering machinery and intelligent mining equipment. This includes tunnel boring machines, integrated arch anchoring and spraying trolleys, arch anchoring trolleys, integrated arch drilling trolleys, arch frame installation trolleys, wet spraying rigs, and rock drilling rigs. We have the capacity to provide customers with integrated total solution services.
2,What about the MOQ?
The Minimum Order Quantity (MOQ) is 1 set.
3,What payment terms do you accept?
We accept T/T with a 50% prepayment.
4,What about the order lead time?
The usual lead time is 15 days.
5,What logistics methods can you use for shipment?
Truck delivery can be arranged in Central Asia and Russia, and you can also choose rail and sea shipping.
6,How is your delivery time?
The delivery time via China-Europe trains is 15 to 20 days, while sea shipping takes approximately 2 to 3 months.
7,How about your customer service and after-sales service?
We offer 24/7 online support and provide after-sales support in Russia and Central Asia.
Audited Supplier 
){kind=link}
){kind=link}