Litian Heavy Industry Machinery Co., Ltd
Litian Heavy Industry Machinery Co., Ltd
Rock Tools In Tunnelling & Underground

Rock Tools In Tunnelling & Underground

Tunneling & Underground Project

TBM cutters, Top hammer drilling tools and raise boring cutters for Tunnelling & Underground Engineering

Every tunneling and underground engineering construction requires the cooperation of multiple types of equipment. We can provide safe, high-efficiency, and high-precision rock tools consumables for rock drilling and breaking. Litian TBM cutters can be adapted to all kinds of tunnel boring machines to complete tunnel excavation work under various rock conditions. Litian top hammer rock drilling tools can be adapted to all kinds of underground rock drilling rigs to complete precise rock drilling operations. Litian raise boring cutters can be adapted to all kinds of raise borers to complete the construction of various pilot shafts and ventilation shafts.

In different tunneling and underground engineering, the physical properties of rocks (such as density, humidity, magnetism, swelling, dissolution) and mechanical properties of rocks (such as strength, hardness, abrasion, brittleness, toughness, robustness) are differ in thousands of ways. In the development of TBM cutters, Top hammer drilling tools and raise boring cutters, we not only carry out development in raw materials, heat treatment, and manufacturing technology, but also produce rock drilling tools and excavation tools in accordance with the different characteristics of the rocks.

In order to meet the standards of safety, speed, accuracy during drilling and excavation, the parameters of our underground boring tools and drilling tools can be fully matched with the host machine to achieve the best working conditions and complete the work tasks more efficiently.  

After years of accumulation and development, Litian rock tools have been widely used in various tunnel construction projects and underground engineering, such as metro, railways, road tunnels, harbour tunnels, water diversion projects, sewage treatment projects, outfall projects, underground pipeline projects, etc. We have participated in many large-scale projects at home and abroad, such as Hanjiang to Weihe River Project, ABH Water Transmission Tunnel Project, Peru San Gaban hydropower station tunnel project, and so on.

Raise Boring Roller Bits Rock Tools For Underground Tbm Cutter Tools

Common threaded drilling tools for tunnel construction project:



Model No.

R32 Threaded Rock Driling Tools

Button bit

R32 Thread, 48mm, Spherical buttons, 6 Gauge buttons


Button bit

R32 Thread, 51mm, Spherical buttons, 6 Gauge buttons


Button bit

R32 Thread, 57mm, Spherical buttons, 6 Gauge buttons


Button bit

R32 Thread, 64mm, Spherical buttons, 8 Gauge buttons


MF Drill Rod

T38-R32 Thread, Length 4305mm, Hexagonal rod


MF Drill Rod

R3-R32 Thread, Length 4915mm, Hexagonal rod


Drill Rod

T38-R32 Thread, Length 5525mm, Hexagonal rod


Drill Rod

R38-R32 Thread, Length 6400mm, Hexagonal rod


Coupling Sleeve

R38-R38 Thread, Length 190mm, Semi-bridge type


Coupling Sleeve

T38-T38 Thread, Length 190mm, Full-bridge type


Related Litian Rock Tool Application

Litian Updates
Raise Boring Drilling Tools
Jun 29-2022
Project In Progress | Raise Boring Drilling Tools In Yunnan Iron Mine
Yunnan Iron Mine shaft project has started construction in May 2022. The shaft is designed to have a depth of 178 meters and a reaming diameter of about 3 meters. The geological conditions of the mine...
Jun 27-2022
The Working Principle of TBM Cutter Disc Used in Tunnel Engineering
Full-section rock tunnel boring machine (TBM) is a special construction machine for tunnels, which is widely used in subway, railway, highway, municipal, hydropower tunnel projects.The cutter head is ...
Factors Affecting TBM Cutter Tunneling Efficiency