Product Information
A rock drill is a small pneumatic/hydraulic tool used for drilling holes in rock and concrete. It operates through a combined impact and rotational force to create blast holes and anchor holes in rock formations. Often used in conjunction with pneumatic picks and air compressors, it comes in three types: handheld, air-leg, and vehicle-mounted jumbo drill rigs. It is widely applied in mining, quarrying, tunnel excavation, and infrastructure demolition and drilling operations.
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Working Principle
The pneumatic model uses compressed air from an air compressor to drive an internal piston, which impacts the drill rod at high frequency. At the same time, a low-torque mechanism rotates the drill rod slowly, breaking the rock layer through impact, switching the chiseling point during rotation, and continuously cutting the rock mass to form a regular borehole. The hydraulic model relies on a hydraulic pump station to supply pressure oil to drive the impact structure, offering greater impact power, higher drilling efficiency, and stronger stability for deep-hole operations.
Application Fields
1. Mining: Drilling blast holes in quarries and drilling boreholes for underground roadway excavation.
2. Tunnel Engineering: Drilling anchor bolt holes for advanced support in mountain tunnels and subway tunnels.
3. Infrastructure Construction: Drilling anchor holes for slope reinforcement and rock-layer boreholes for foundation pit blasting.
4. Engineering Demolition: Drilling and demolishing concrete walls and road surfaces, and pre-opening holes for anchor bolts.