Introduction
1. Size: According to the working condition of each aperture needs
2. Application: Mineral resources development open pit drill blasting hard rock (granite, basalt), single penetration depth exceeds 15 meters, DTH hammer drill bits with high wind pressure is ascending through efficiency; Underground mining with deep concave center type bit, to adapt to the complex geological structure.
3. Infrastructure construction of high-rise building pile foundation construction: hydraulic impactor drive drill bit diameter of 2 meters, 50 meters deep drilling; Tunnel engineering: oriented bit achieve + / - 5 cm precision control, smooth blasting for subway.
Details
DTH Hammer Drill Bits, End Face Shape Classification
Convex type
Single/double convex platform design, suitable for hard to hard abrasive rocks such as granite, but drilling straightness is poorer, common in open-pit mine blasting hole.
Concave type
With conical depression ends, powder, good effect, high hole straightness, suitable for water and electricity engineering, tunnel pipe roof should be accurate as the scene of hole.
Planar
Solid structure, special in extremely hard rock drilling (such as basalt), common in deep well drilling and foundation construction of sea-crossing bridge.
Deep concave center type
Suitable for soft rock to hard rock deep hole in the homework, can ensure hole straightness.
According To The Material Classification
Carbide Drill
High temperature (800℃), and shale gas horizontal well drilling for deep vein exploration diamond compact (PDC) drill bits, drill very hard rock, such as marble, average daily efficiency 40% nickel project in Indonesia.
Button Bit
Strong impact resistance, suitable for the soil and soft rock drilling, such as slope anchor hole construction.
Specification Parameters
Uses
Performance Advantage
Efficiently through
Spherical alloy tooth design reduce sticking with variable diameter, 200 mm/min27 hard rock drilling velocity.
Environmental adaptation
Sea water corrosion and anticorrosion plating bit tolerance is suitable for tidal power station construction.
Long life
DTH hammer drill bits by improving heat treatment process, prolong service life of 30%.
Selection principle of rock hardness
Choose extremely hard rock PDC drill bit, the hard rock with concave type alloy bit.
Aperture
From 90 to 350 mm range of optional, large diameter drilling double convex platform design priority.
Condition Limit
High dust environment collocation DTH hammer drill bits.
Features
Low / medium / high air pressure models (above 0.5-1.2Mpa) meet the requirements of different working conditions.
Contact
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FAQ
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