13inch 14inch 15inch DTH hammer
With ROSCHEN 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.
Product specifications: DHD1120 DTH bits
| Drill Bit |
Bit Dia.(mm) |
NO.Air |
Gauge |
Front |
Weight(Kg) |
Part No. |
| Holes |
Buttons |
Buttons |
| DHD1120 |
305 |
4 |
12*Φ18 |
36*Φ16 |
152 |
DHD1120-305 |
| 311 |
4 |
12*Φ18 |
36*Φ16 |
157 |
DHD1120-311 |
| 330 |
4 |
16*Φ18 |
42*Φ16 |
165 |
DHD1120-330 |
| 356 |
4 |
16*Φ19 |
42*Φ16 |
178 |
DHD1120-356 |
| 381 |
4 |
16*Φ19 |
42*Φ18 |
198 |
DHD1120-381 |
| SD12 |
305 |
4 |
12*Φ18 |
36*Φ16 |
156 |
SD12-305 |
| 311 |
4 |
12*Φ18 |
36*Φ16 |
168 |
SD12-311 |
| 330 |
4 |
16*Φ18 |
42*Φ16 |
180 |
SD12-330 |
| 356 |
4 |
16*Φ19 |
48*Φ16 |
191 |
SD12-356 |
| 381 |
4 |
16*Φ19 |
48*Φ18 |
200 |
SD12-381 |
| NUMA120 |
305 |
4 |
12*Φ18 |
36*Φ16 |
152 |
N120-305 |
| 311 |
4 |
12*Φ18 |
36*Φ16 |
158 |
N120-311 |
| 330 |
4 |
16*Φ18 |
42*Φ16 |
165 |
N120-330 |
| 356 |
4 |
16*Φ19 |
48*Φ16 |
178 |
N120-356 |
| 381 |
4 |
16*Φ19 |
48*Φ18 |
195 |
N120-381 |
| NUMA125 |
305 |
4 |
12*Φ18 |
36*Φ16 |
170 |
N120-305 |
| 311 |
4 |
12*Φ18 |
36*Φ16 |
173 |
N120-311 |
| 330 |
4 |
16*Φ18 |
42*Φ16 |
182 |
N120-330 |
| 356 |
4 |
16*Φ19 |
48*Φ16 |
191 |
N120-356 |
| 381 |
4 |
16*Φ19 |
48*Φ18 |
200 |
N120-381 |
DTH hammer 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 many 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 hole Diameter:65-220mm
3. High air pressure hole Diameter: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.
other specifications:
For 3" hammer
DTH bits shank |
Bit Dia. |
No. Air Holes |
Guage Buttons |
Front Buttons |
Weight(kgs) |
Part No. |
| mm |
inch |
| COP32 |
85 |
3 11/32" |
2 |
6×φ13 |
4×φ12 |
4.2 |
COP32-85 |
| 90 |
3 1/2" |
2 |
6×φ14 |
4×φ12 |
4.5 |
COP32-90 |
| 95 |
3 3/4" |
2 |
6×φ14 |
4×φ13 |
4.7 |
COP32-95 |
| 100 |
3 7/8" |
2 |
8×φ12 |
6×φ12 |
5 |
COP32-100 |
| 105 |
4 1/8" |
2 |
8×φ13 |
6×φ12 |
5.3 |
COP32-105 |
| BR3 |
85 |
3 11/32" |
2 |
6×φ13 |
4×φ12 |
3.8 |
BR3-85 |
| 90 |
3 1/2" |
2 |
6×φ14 |
4×φ12 |
4 |
BR3-90 |
| 95 |
3 3/4" |
2 |
6×φ14 |
4×φ13 |
4.3 |
BR3-95 |
| 100 |
3 7/8" |
2 |
8×φ12 |
6×φ12 |
4.8 |
BR3-100 |
| 105 |
4 1/8" |
2 |
8×φ13 |
6×φ12 |
5.2 |
BR3-105 |
| DHD3.5/COP34 |
85 |
3 11/32" |
2 |
6×φ13 |
4×φ12 |
4.2 |
DHD35-85 |
| 90 |
3 1/2" |
2 |
6×φ14 |
4×φ12 |
4.5 |
DHD35-90 |
| 95 |
3 3/4" |
2 |
6×φ14 |
4×φ13 |
4.8 |
DHD35-95 |
| 100 |
3 7/8" |
2 |
8×φ12 |
6×φ12 |
5 |
DHD35-100 |
| 105 |
4 1/8" |
2 |
8×φ13 |
6×φ12 |
5.5 |
DHD35-105 |
| 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 |
QL30-100 |
| 105 |
4 1/8" |
2 |
8×φ13 |
6×φ12 |
5.5 |
QL30-105 |
ROSCHEN hammer bit technical data:
| ROSCHEN DTH Bits Specifications |
| Hammer Size |
Bits diameter |
Shank |
ROSCHEN CODE |
| Metric |
Inch |
| 1" |
64mm-70mm |
2 1/2"-2 3/4" |
BR1 |
ROS 11 |
| 2" |
70mm-95mm |
2 3/4"-3 3/4" |
MACH20/BR2 |
ROS 22 |
| 3" |
90mm-102mm |
3 1/2"-4" |
COP32/COP34/MACH303 |
ROS 32 |
| M30/DHD3.5/BR3 |
ROS 34 |
| 4" |
105mm-152mm |
4 1/8"-6" |
COP44/DHD340/MACH44 |
ROS 42 |
| SD4/M40/QL40 |
ROS 44 |
| 5" |
133mm-165mm |
5 1/4"-6 1/2" |
COP54/DHD350R/MACH50 |
ROS 52 |
| SD5/M50/QL50/BR5 |
ROS 54 |
| 6" |
152mm-254mm |
4 1/8"-10" |
COP64/DHD360/SD6 |
ROS 62 |
| M60/QL60/Bulroc BR6 |
ROS 64 |
| 8" |
203mm-330mm |
8"-13" |
COP84/DHD380/SD8 |
ROS 82 |
| QL80/M80/M85 |
ROS 84 |
| 10" |
254mm-380mm |
10"-15" |
SD10 |
ROS 100 |
| NUMA100 |
| 12" |
305mm-508mm |
12"-20" |
DHD1120/SD12 |
ROS 120 |
| NUMA120/NUMA125 |
| Notes: |
| Metzke, Remet thread is available! |
| Any special size of DTH bits will be available by requests. |
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
ROSCHEN Manufacturing workshop
ROSCHEN Packing workshop
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.
For more information, please contact:
web site: roschen.en.made-in-china.com
Audited Supplier 
){kind=link}
){kind=link}