DTH Hammer Bits Numa125 DTH Bit Rock Drill Bits For Drilling
Product specifications: Numa125 DTH bits
For 10" hammer
DTH bits shank | Bit Dia. | Air Holes
No. | Gauge
Buttons | Front
Buttons | Weight
(Kg) | Part No. |
| mm | inch |
| SD10 | 254 | 10" | 3 | 12×φ18 | 20×φ16 | 108.0 | SD10-254 |
| 305 | 12" | 4 | 12×φ18 | 36×φ18 | 125.0 | SD10-305 |
| 311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 130.0 | SD10-311 |
| 318 | 12 1/2" | 4 | 12×φ18 | 38×φ16 | 142.0 | SD10-318 |
| 330 | 13" | 4 | 16×φ18 | 42×φ16 | 155.0 | SD10-330 |
| NUMA100 | 254 | 10" | 3 | 12×φ18 | 20×φ16 | 90.0 | Numa100-254 |
| 305 | 12" | 4 | 12×φ18 | 36×φ18 | 102.0 | Numa100-305 |
| 311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 104.0 | Numa100-311 |
| 318 | 12 1/2" | 4 | 12×φ18 | 38×φ16 | 106.0 | Numa100-318 |
| 330 | 13" | 4 | 14×φ18 | 42×φ16 | 112.0 | Numa100-330 |
We are a leading manufacturer of rock drilling tools, like DTH
hammers and bits, DTH drill pipes, RC hammers and bits, tophammer
button bits, coupling, cross bits, drill rods located in Changsha,
Hunan, China.
We have rich experience in this field of DTH hammers and bits for
10 years.
Owing to high quality, professional serivce and competitive price,
we have gotten good reputation from our customers from all over the
world, such as France, Spain, Italy, South Africa, Iran, Malaysia,
Australia ad etc.
DTH hammer
With professional manufacturing experience in DTH hammer
production, our factory can supply you with high pressure and
medium to low pressure DTH hammers. It strictly matches with API
standard and other Chinese industry standards.It is durable for
being produced with advanced craftwork and good material.
It also has the following advantages:
1. Deliver maximum energy to drilling bit, fast drilling speed and
low air consumption due to the special inner structure of HD series
DTH hammer designed according to newest rock drilling theory.
2. Smooth performance and long service life of HD series DTH hammer
due to high quality alloy steel materials and advanced processing
technology adapted.
3. Low problem rate and easy to maintenance due to simple, reliable
and easy assemble and disassemble inner structure of hammer.
4. Easy to depart bit from hammer due to multi-head thread
connecting chuck and cylinder of hammer.
5. Interchangeable with DTH bit and drill pipe
DTH Bit
DTH bit is our main product. After mang years search, we have rich
experience in development and manufacturing high quality products,
which adopted high-quality raw materials, advanced technology and
passed through strictly inspection.
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.
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