The LDJ400 The LDJ400 series multi-functional tunnel boring machine is a revolutionary piece of equipment designed for non-explosive tunnel excavation. It harnesses the power of high-frequency hammers or breaker hammers to efficiently break rock, using bucket teeth or drill rods to wedge the rock and the gravity of the free face to automatically fracture the surrounding rock. High-frequency hammers are ideal for rocks below 40MPa, while breaker hammers cater to harder rocks. Featuring both local control and wireless remote control, this machine is adaptable to tunnel excavations ranging from 6 to 9.5 meters. Its multifaceted capabilities include high-frequency rock breaking, rapid soft soil excavation, contour trimming, and spray dust removal. This versatility makes it perfect for construction sites where blasting is restricted, such as airports, residential zones, and wildlife reserves. The machine's flexibility enables it to handle various rock types, minimizing over- and under-excavation and preventing landslides and other complications.
Achieves a remarkable excavation efficiency of up to 50m³/h for grade IV and V surrounding rocks.
Equipped with an effective dust removal spray system, it ensures a safe and clean construction environment.
Utilizes a patented three-toothed or two-toothed base coupled with a high-frequency breaker hammer for rapid rock fracturing and exceptional impact.
Minimal Disturbance to Surrounding Rock: This non-explosive excavation method significantly reduces the disturbance to the surrounding rock structures.
Precise Control of Over- and Under-Excavation: The machine's movements are precisely controlled, ensuring over- and under-excavation within a tight tolerance of 20 centimeters.
Remote Control: All machine movements are remotely controlled, providing ease of operation and allowing the operator to adjust positions flexibly.
Diesel-Electric Dual Power System: Supports both diesel-powered emergency and electric construction modes, reducing costs and minimizing air and heat pollution within the tunnel during construction.
Efficient Slag Discharge: Certain models come with slag collecting and discharging devices, boasting a slag discharge capacity of 180m³/h, making it ideal for small-section equipment needing rapid slag removal 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 |
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.
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