About us:
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.
Product specifications:
| QL shank Bits | Bit Dia. | No.
Air Holes | Gauge
Buttons | Front
Buttons | Weight
(Kgs) | Part No. |
| mm | inch |
| QL30 | 85 | 3 11/32" | 2 | 6×φ13 | 4×φ12 | 4.5 | QL30-85 |
| 90 | 3 1/2" | 2 | 6×φ14 | 4×φ12 | 4.7 | QL30-90 |
| 95 | 3 3/4" | 2 | 6×φ14 | 4×φ13 | 4.9 | QL30-95 |
| 100 | 3 7/8" | 2 | 8×φ12 | 6×φ12 | 5.0 | QL30-100 |
| 105 | 4 1/8" | 2 | 8×φ13 | 6×φ12 | 5.5 | QL30-105 |
| QL40 | 105 | 4 1/8" | 2 | 6×φ14 | 5×φ13 | 9.0 | QL40-105 |
| 110 | 4 1/4" | 2 | 7×φ13 | 6×φ13 | 9.2 | QL40-110 |
| 115 | 4 1/2" | 2 | 7×φ14 | 6×φ13 | 9.5 | QL40-115 |
| 120 | 4 3/4" | 2 | 8×φ14 | 6×φ14 | 10.3 | QL40-120 |
| 127 | 5 | 2 | 8×φ14 | 7×φ14 | 11.5 | QL40-127 |
| QL50 | 133 | 5 1/4" | 2 | 7×φ16 | 6×φ14 | 15.5 | QL50-130 |
| 140 | 5 1/2" | 2 | 7×φ18 | 7×φ14 | 16.0 | QL50-140 |
| 146 | 5 3/4" | 2 | 8×φ18 | 7×φ14 | 16.5 | QL50-146 |
| 152 | 6" | 2 | 8×φ18 | 8×φ14 | 17.0 | QL50-152 |
| 165 | 6 1/2" | 2 | 8×φ18 | 8×φ16 | 19.0 | QL50-165 |
| QL60 | 152 | 6" | 2 | 8×φ16 | 8×φ16 | 25.0 | QL60-152 |
| 165 | 6 1/2" | 2 | 8×φ18 | 8×φ16 | 27.0 | QL60-165 |
| 178 | 7" | 2 | 8×φ18 | 8×φ18 | 28.5 | QL60-178 |
| 190 | 7 1/2" | 3 | 9×φ18 | 9×φ16 | 31.0 | QL60-190 |
| 203 | 8" | 3 | 9×φ18 | 9×φ18 | 33.0 | QL60-203 |
QL80
| 195 | 7 11/16 | 3 | 9×φ18 | 9×φ16 | 32.0 | QL80-195 |
| 203 | 8" | 3 | 9×φ18 | 9×φ18 | 41.0 | QL80-203 |
| 216 | 8 1/2" | 2 | 10×φ18 | 12×φ16 | 49.0 | QL80-216 |
| 254 | 10" | 3 | 11×φ18 | 17×φ16 | 71.0 | QL80-254 |
| 305 | 12" | 4 | 12×φ18 | 29×φ16 | 95.0 | QL80-305 |
Shank can be available:
1), Dia. 64mm-70mm shank Bulroc BR1
2), Dia. 70mm-95mm shank Halco MACH20, Bulroc BR2
3), Dia. 90mm-102mm shank COP32, COP34, Halco MACH303, M30, DHD3.5, Bulroc BR3
4), Dia. 105mm-152mm shank COP44, DHD340, Halco MACH44, SD4, M40, QL40, Bulroc BR4
5), Dia. 135mm-165mm shank COP54, DHD350R, COP54, Halco MACH50, SD5, M50, QL50, Bulroc BR5
6), Dia. 152mm-254mm shank COP64, DHD360, SD6, M60, QL60, Bulroc BR6
7), Dia. 203mm-330mm shank COP84, DHD380, SD8, QL80
8), Dia. 254mm-380mm shank SD10, Numa100
9), Dia. 305mm-508mm shank DHD1120, SD12, N120, N125
10), Dia. 405mm-864mm shank SD15, SD18
11), VKP80, VKP95, CIR90, CIR100, CIR110, CIR150, CIR200...
We can also provide related products DTH hammers, ODEX system, symmetrix systems, slide block drilling systems, etc and DTH drilling pipes for various thread API REG, API IF, BECO, etc
Product photos
Quality warranty:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for package to protect the products and avoid the damagement during transportation. Also we can customize package according to your special requests.
Production time:
Generally need 15-25 days
Transportation:
By air, By Express or By sea according to your requests.
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QL Series High Air Pressure DTH Bit for drilling Images
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