Low Medium and High Air Pressure Deep Hole DTH Hammers Button bits for Mining and Rock Drilling
DTH hammer and bits are made of high-quality alloy steel with advanced heat treatment to assure the good drilling performance and long service life. They are widely used in Minning, Quarry, water well drilling and so on.
All the products are manufactured as per the international standard and well compatible with the brand of Atlas Copco, Ingersoll-Rand, 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
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DHD3.5 Bits Dia: 90mm-102mm.
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DHD340 Bit Dia: 105mm-127mm.
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DHD350 Bit Dia: 133mm-152mm.
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DHD360 Bit Dia: 152mm-216mm.
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DHD380 Bit Dia: 203mm-254mm.
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QL40 Bit Dia: 105mm-127mm.
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QL50 Bit Dia: 133mm-152mm.
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QL60 Bit Dia: 152mm-216mm.
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QL80 Bit Dia: 203mm-254mm.
Hammer Model
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SD4 Bit Dia: 105mm-127mm.
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SD5 Bit Dia: 133mm-152mm.
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SD6 Bit Dia: 152mm-216mm.
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SD8 Bit Dia: 203mm-254mm.
Atlas Hammer Model
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COP32 Bit Dia: 90mm-102mm.
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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 )
