12" Numa Down The Hole Numa125 DTH Button Drill Bits For Rock
Drilling
Product specifications: Numa125 dth bits
For 12" hammer
DTH bits shank | Bit Dia. | No
Air
Holes. | Gauge
Buttons | Front
Buttons | Weight
(Kg) | Part No. |
| mm | inch |
| DHD1120 | 305 | 12" | 4 | 12×φ18 | 36×φ16 | 152.0 | DHD1120-305 |
| 311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 157.0 | DHD1120-311 |
| 330 | 13" | 4 | 16×φ18 | 42×φ16 | 165.0 | DHD1120-330 |
| 356 | 14" | 4 | 16×φ19 | 48×φ16 | 178.0 | DHD1120-356 |
| 381 | 15" | 4 | 16×φ19 | 48×φ18 | 198.0 | DHD1120-381 |
| SD12 | 305 | 12" | 4 | 12×φ18 | 36×φ16 | 156.0 | SD12-305 |
| 311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 168.0 | SD12-311 |
| 330 | 13" | 4 | 16×φ18 | 42×φ16 | 180.0 | SD12-330 |
| 356 | 14" | 4 | 16×φ19 | 48×φ16 | 191.0 | SD12-356 |
| 381 | 15" | 4 | 16×φ19 | 48×φ18 | 200.0 | SD12-381 |
| NUMA120 | 305 | 12" | 4 | 12×φ18 | 36×φ16 | 152.0 | NUMA120-305 |
| 311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 158.0 | NUMA120-311 |
| 330 | 13" | 4 | 16×φ18 | 42×φ16 | 165.0 | NUMA120-330 |
| 356 | 14" | 4 | 16×φ19 | 48×φ16 | 178.0 | NUMA120-356 |
| 381 | 15" | 4 | 16×φ19 | 48×φ18 | 195.0 | NUMA120-381 |
| NUMA125 | 305 | 12" | 4 | 12×φ18 | 36×φ16 | 170.0 | NUMA125-305 |
| 311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 173.0 | NUMA125-311 |
| 330 | 13" | 4 | 16×φ18 | 42×φ16 | 182.0 | NUMA125-330 |
| 356 | 14" | 4 | 16×φ19 | 48×φ16 | 191.0 | NUMA125-356 |
| 381 | 15" | 4 | 16×φ19 | 48×φ18 | 200.0 | NUMA125-381 |
Product photos
DTH bits for 12inch hammer-DHD112,SD12,NUMA120,NUMA125
1.Face:flat,concave.convex
2. Spherical, ballistic, parabolic inserts
3. Certificate: ISO9001:2008, SONCAP
Shank: SD12 ,DHD112,Numa120,Numa125
Diameter: 310m to 420mm.
Applicaiton field: blasting hole,geotheromal hole.
Face design: flat, concave,drop center
Inserts design: spherical, ballistic, parabolic
Fetures: 1.Reliable quality, long service life, rare abnormal breakage
during service life.
2.Good flushing effect to ensure high drilling rate
3.Strict quality warranty and compensation rules
Markets: Italy, France, Russia, Greece,Canada,Korea, Chile, Brazil,
Nigeria, Mongolia and etc.
| Shank style | Diameter in mm | Flushing holes No. | Gauge buttons | Face buttons | Approx.weight |
NUMA125 | 305 | 4 | 12*18mm | 36*16mm | 152.0kg |
| 311 | 4 | 12*18mm | 36*16mm | 158.0kg |
| 330 | 4 | 16*18mm | 42*16mm | 165.0kg |
| 356 | 4 | 16*19mm | 48*16mm | 178.0kg |
| 381 | 4 | 16*19mm | 48*18mm | 195.0kg
|
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
20 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.
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