TR series cantilever type tunneling machine is a new form of tunneling machine developed to meet the needs of tunnels of various sections. This series of tunneling machine has strong rock-breaking capability, high construction efficiency and wide cutting range, and comprises targeted professional models for water conservancy and subway tunnels with small and medium-sized sections as well as highway and railroad tunnels with larger sections, which can meet the construction requirements of tunnels. The tunneling machine has strong geological adaptability and can be stably operated for construction in tunnels with rock hardness within 120MPa: With stable cutting performance and wear-resistant cutting head, it can excavate semi-circular, oval, rectangular, horseshoe-shaped and other special-shaped sections and sections with abrupt changes. The tunneling machine adopts hydraulic and electric components of internationally well-known brands to ensure the operation and control reliability of machine, and is equipped with spray system and fan for dust removal to provide a low-dust environment for construction workers. The complete machine has high configuration, good stability, high automation, safety and reliability. 

Advantages: 

1. The working mechanism with large power and multiple configurations is adopted to greatly improve the cutting efficiency under different conditions. 

2. The automatic cable reeling system is adopted to exempt manual efforts for cable dragging and ensure construction safety. 

3. The heightened primary conveyor is adopted to ensure direct receiving of medium-sized trucks behind it and increase discharge efficiency. 

4. The cooling system consists of air cooling and water cooling to ensure good cooling effect, so that the main unit operates normally with or without external water supply. 

5. The electric system adopts components of internationally well-known brands with advanced function, high stability and soft start and remote control functions. 

6. The hydraulic system adopts constant power, pressure shut-off and load-sensitive control technologies to effectively extend service life of hydraulic elements and reduce system troubles. The main hydraulic elements adopt products of internationally well-known brands.