Date: 2026-08-16 Author: LERB Machinery
LERB Machinery is a leading manufacturer of hard rock drilling machines in China, utilizing high-strength carbide drill bits that adapt to the hardness and rotation speed of the rocks. Our hard rock drilling machines are certified by ISO9001, ISO 14001, ISO 45001, and EU CE, easily meeting the drilling needs of various rock hardness and strata. Our T6 deep-hole hydraulic rock drill rig features a rotational torque of 1522Nm and can drill holes with a diameter of 89-127 mm. With its powerful impact and performance, this model has become the best hard rock drilling machine and is exported to important international markets such as Africa, India, Brazil, and Southeast Asia, receiving widespread acclaim.

An outstanding hard rock drilling machine needs to be equipped with corrosion-resistant drill bits. To achieve this, LERB Machinery has selected high-strength carbide for its drill bits, which allows for efficient cutting through hard rock and maintains consistent performance under harsh conditions, such as in hard rock and mixed strata.
Hard rock drilling often requires machines with high impact energy. The T6 deep-hole hydraulic rock drill rig has optimized its internal power structure to automatically adjust the drill bit's rotation speed based on the hardness of the hard rock, minimizing wear and extending the machine's lifespan while effectively increasing the penetration depth into hard rock.
Considering the safety issues associated with traditional hard rock drilling machines, LERB Machinery has developed a more secure and mature hydraulic drilling technology that is patented. This technology significantly enhances safety and reliability, ensuring efficient operation while reducing flying rocks and noise, which effectively safeguards the operators and minimizes the impact on the surrounding environment.
As the best hard rock drilling machine, the T6 deep-hole hydraulic rock drill rig is also equipped with a digital control system. This system allows for high-precision operation, daily maintenance, and status monitoring, greatly reducing operational complexity. It enables a single operator to easily manage the machine.
To effectively meet user demands across various applications, LERB Machinery has specifically developed the T2 hydraulic rock drill rig and the T1 hydraulic rock drill rig. Both machines feature a compact design while still being equipped with hydraulic power systems, enabling effective drilling in different types of hard rock. Notably, these models are favored by users due to their strong power and compact flexibility. They can perform efficient drilling in confined workspaces and can be mounted on excavators, leveraging the mobility of the excavator to maximally utilize the advantages of the hard rock drilling machine.
As the demand for drilling continues to rise, the functionalities of hard rock drilling machines are also constantly being enhanced. LERB Machinery continuously innovates to improve the efficiency and safety of hard rock drilling machines through market analysis and feedback from users. Additionally, we have developed a digital operating system for our hard rock drilling machines, making drilling operations more intelligent and automated. LERB Machinery will optimize and develop hard rock drilling machines sustainably based on user needs, making drilling more efficient and reducing workers' exposure to hazardous environments.