China Down the hole DTH Hammer Drill button Bit with
CIR,DHD,QL,M,SD series for well drilling,quarrying mining
Rock Drill DTH Button Bits/Rock drilling Tools/Down the Hole
Drilling,Made with high quality of best quality alloy steel bar and tungsten
carbides, through heat treatment so that it can withstand the toughest rock
drilling demands,and transmit intensive impact energy into the rock with the least
possible loss of energy.
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.
Down the hole bit, DTH bit, DTH rock drill bit, Suitable for hole drilling or breaking the rock—Soft rock,
loose-medium rock, hard rock and any other special formations,
usually used in Stone/Quarry area, rocky area, and ore exploring.
It is the first and important step to explore glod, silver,copper
etc ore.
Test results
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 )
