1. DTH drilling rigs have a wide range of applications: DTH drilling rigs can be used in various underground projects such as underground foundation construction, underground water wells, and subway tunnel construction. It can work in different types of geological conditions, such as soil, rock, gravel, etc.

2. Efficient and fast: The down-the-hole drilling rig has efficient and fast construction capabilities. It can quickly complete the drilling and excavation of holes, greatly shortening the construction period.

3. Strong flexibility: The design of down-the-hole drilling rigs is flexible and diverse, and can be customized and adjusted according to different engineering needs. It can adapt to different hole diameters and depth requirements to meet different construction needs.

4. High degree of automation: The down-the-hole drilling rig adopts an advanced automatic control system with automatic positioning, navigation and drilling functions. Operators can remotely operate and monitor the down-the-hole drilling rig through the console, which improves the accuracy and safety of construction.

5. Reduce human labor: Compared with traditional manual drilling methods, down-the-hole drilling rigs reduce the dependence on manual labor. It can automatically perform drilling, sampling and cleaning operations, reducing manual labor intensity and improving construction efficiency.

6. Environmentally friendly: The down-the-hole drilling rig adopts electric or hydraulic power system, which reduces the pollution to the environment. It has the characteristics of low noise, low vibration and low emission, and has less impact on the surrounding environment and residents.