Low Medium and High Air Pressure Deep Hole DTH Hammers Button bits
for Mining and Rock Drilling
DTH drilling is a percussion system driving a piston inside hammer
body with up and down motion by compressed air and transmitting an
intensive percussion energy to the bit to enable the drilling by
crushing the rock. Drilling method by DTH hammer exerts high
drilling performance especially for drilling hard rock and
contributes for shortening work schedule. Hence, this method is
widely utilized for foundation work, landslide prevention work,
quarrying services, marine civil work, etc.
1.high and low air pressure down-the-hole drill bits
2.Low air pressure holeDia.:65-220mm
3.High air pressure hole Dia.:85-305mm
4.Face type:drop center/concave/convex/double gauge/flat
5.Our DTH Bit can be suitable for many types of DTH Hammer, such as
XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger
etc.
DTH Bits for Shank Hammer Model-Foot Valve
Ingersoll-Rand
DHD3.5 Bits Dia: 90mm-102mm.
DHD340 Bit Dia: 105mm-127mm.
DHD350 Bit Dia: 133mm-152mm.
DHD360 Bit Dia: 152mm-216mm.
DHD380 Bit Dia: 203mm-254mm.
QL40 Bit Dia: 105mm-127mm.
QL50 Bit Dia: 133mm-152mm.
QL60 Bit Dia: 152mm-216mm.
QL80 Bit Dia: 203mm-254mm.
Hammer Model
SD4 Bit Dia: 105mm-127mm.
SD5 Bit Dia: 133mm-152mm.
SD6 Bit Dia: 152mm-216mm.
SD8 Bit Dia: 203mm-254mm.
Atlas Hammer Model
COP32 Bit Dia: 90mm-102mm.
COP42 Bit Dia: 105mm-127mm.
Specification
| Bit size | Shank type | Recommended DTH bir diameter |
| 3.5''/3'' DTH Hammer bits | COP34, DHD3.5, MISSION30, BR3 shank | 90mm to 105mm |
| 4'' DTH Hammer bits | DHD340, QL40, MISSION40, SD4 shank | 110mm to 130mm |
| 5'' DTH Hammer bits | DHD350, QL50, MISSION50, SD5 shank | 134mm tio 152mm |
| 6'' DTH Hammer bits | DHD360, QL60, MISSION60, SD6 shank | 152mm to 203mm |
| 8'' DTH Hammer bits | DHD380, QL80, MISSION80, SD8 shank | 203mm to 305mm |
| 12'' DTH Hammer bits | DHD112, SD12 and QL120 shank | Available upon to customers' request |
Besides, we are manufacturing the DTH bits with various shanks so
they can be compatible with different DTH hammers .
DTH button bits
| 5 inches DTH hammer button bits |
| Shank style | Diameter in mm | Flat face | Convex face | Concave face | Approx. weight | Part number |
DHD350R
| 135 | √ | √ | √ | 16.2 kgs | DHD350-135 |
| 140 | √ | √ | √ | 16.5 kgs | DHD350-140 |
| 146 | √ | √ | √ | 17.0 kgs | DHD350-146 |
| 152 | √ | √ | √ | 17.8 kgs | DHD350-152 |
| 165 | √ | √ | √ | 18.5 kgs | DHD350-165 |
Different face style makes DTH bits suitable for various rock
conditions.
Flat face: This is an universal design, especially for hard and abrasive rock
formation. So typically, flat face with hemi-spherical buttons
design is the most popular choice.
Convex face: A classic design for soft to medium hard rock formation which is
not so abrasive. This design have very excellent penetration rate
but poor in hole deviation if rocks are hard.
Concave face: Medium hard to hard rock formations which is less abrasive and
fractured. Especially for deep hole drilling, excellent control
over hole deviation.
Base on comprehensive product range :
1. Construction (Overburden drilling tools. Top hammer drilling
tools , Self-drilling anchor system ) .
2. Mining (Top hammer drilling tools , Down The Hole(DTH) drilling
tools. Diamond drill tools )
3. Piling (Casing Tube, Down The Hole (DTH) drilling tools .
Eccentric casing system.)
4. Water well (Concentric Casing Systems, ,Eccentric casing System.
Down The Hole drill bit and hammer ) .
5. Quarry and Aggregate (Down The Hole (DTH) drilling bit and
hammer .Long hole drilling tools .H-thread drilling tools .Shank adaptor .Small-hole drilling tools )
