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Low Air Pressure Down The Hole Drilling Tools CIR110-110mm Convex Face All Sphere DTH Drill Bits
All Adriller products are compatible with many products manufactured by Sandvik, Atlas Copco, etc.
all our products are widely used in mining, tunneling, quarrying, construction, and civil engineering project.
DTH bits
1. manufacture as your requirement
2. bit diameter, face shape
3. carbide button shape
4. number of air hole
Carbide Selection
Carbide Designs
Perhaps the most fundamental decision when selecting different carbide
configurations is profile shape. Button bits most commonly have either a hemispherical
or semi-ballistic carbide design; however it is not uncommon to use other carbide designs as well.
Faster
Shorter lifetime and susceptible to breaks : Conical Full Ballistic
Penetration rate:
Tungsten carbide life time. Semi Ballistic
Slower
Longer lifetime and less susceptible to breaks: Crown Point and Hemispherical
Head Profile Design
Flat Face
Applications : Hard and abrasive formations, all round
Typical formations: Granite, hard limestone, basalt
Convex
Applications: Soft to medium hard rock, high penetration rate.
Typical formations : Limestone, hard limestone, shale, granite, basalt
Concave
Applications: Medium hard to hard formations, less abrasive, fractured formations, excellent control over hole deviation
Typical formations : Granite, basalt
Concave Kupa
Applications : Special design with ballistic front buttons, medium hard to hard formations, fractured formations.
Typical formations :Granite, basalt
Scope of application:
Mining, quarry, road building, well hole drilling, blasting, landslide prevention, dam reinforement, anchoring, geothermal, hydrology, etc
