LR400 Series Multifunction Tunnel Digging Machine (Tunnel Excavator/Roadheader)

Performance characteristics of the LR400 Series tunnel digging machine (Tunnel Excavator / roadheader)：

◆ Rapid Rock Breaking：With strong impact and high speed, the comprehensive excavation efficiency in class IV and V surrounding rock can reach up to 50m³/h.

◆ High Safety：Non-blasting excavation minimizes disturbance to surrounding rock; wireless remote control keeps operators away from the work face, significantly enhancing construction safety.

◆ Overbreak Control：Infrared control allows for controlled overbreak and underbreak within 20 cm.

◆ Labor Efficiency：Excavation tasks can be completed with just two operators.

◆ Energy Saving and Environmentally Friendly：Dual-power operation (diesel and electric) ensures no exhaust emissions or heat accumulation in the tunnel during construction.

◆ Low Dust：Large rock fragments reduce dust production during construction. Additionally, the fully automated spray system further reduces dust, ensuring a better working environment and reducing occupational hazards for workers.

◆ Muck Removal：Some models are equipped with integrated muck collection and removal devices, allowing for quick muck removal without retreating, even in small cross-sections.