Top Hammer Drilling Tools
  • Top Hammer Drilling Tools
  • Top Hammer Drilling Tools
  • Top Hammer Drilling Tools

Top Hammer Drilling Tools

Top hammer drilling tools operate by transmitting impact energy directly from the rock drill’s piston to the drill shank. The impact generates stress waves that travel through the drill string and reach the bit, where the bit fractures the rock through repeated percussive blows. At the same time, a rotation unit drives the bit to turn, combining impact breaking with cutting action for efficient rock penetration and borehole formation.

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Applications

Top hammer tools are suitable for rock formations across a wide hardness range and perform particularly well in medium-hard to hard strata. They are widely used in open-pit mining and quarry drilling, underground mine development, rock bolting, tunnel excavation, and foundation construction.

For detailed product specifications, please refer to the PDF document.

The rock drilling tools are compatible with handheld rock drills, drilling jumbos, surface rock drills, and rock drill and splitter commonly used in international engineering machinery.

Mining applications require high wear resistance and fracture toughness. Durable alloy spherical-button bits are commonly used, suitable for drilling hard rock and medium to large-diameter blast holes.

Tunnel drilling typically uses cross bits or small spherical-button bits paired with lightweight rock drills to improve maneuverability and excavation efficiency.

Surface mining blast-hole drilling commonly uses large-diameter spherical-button bits and extended threaded rods, paired with medium- or heavy-duty rock drills to ensure hole diameter and depth.

Small blasting operations typically use multi-sided rods and flat-edge ballistic button bits, suitable for handheld rock drills to quickly create shallow holes.