PR54R-140MM Through Reverse Circulation DTH Hammer for Water Well / Borehole
Through Reverse Circulation DTH Hammer for Water Well / Borehole
In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH drilling a nearly constant penetration rate regardless of hole length.
DTH bits are paired with their corresponding hammers (by drilling hole diameter and spline configuration). Customers can customize their DTH bits in various ways, such as changing the tungsten carbide insert profile (spherical, ballistic, etc.), face profile (flat face, concave, convex, etc.), and flushing holes.
• Medium to large size drilling diameters
• Works in high pressure range, capable of drilling deep hole lengths
Applications of DTH Bit
• Underground mining
• Tunneling
• Quarry benching operations
Competitive Advantage
• High grade tungsten carbide inserts
• Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment
Specification of DTH Bits
| 3" High Pressure DTH Bits | |||||
| Type |
Diameter (mm) |
Buttons |
Flushing Holes |
||
| Front(No*mm) | Gauge(No.*mm) | ||||
| 1 | DHD3.5 / M30 | 90 | 4*12, 2*12 | 8*12 | 2 |
| 2 | 95 | 4*12, 2*12 | 8*12 | 2 | |
| 3 | 100 | 4*13, 2*13 | 8*13 | 2 | |
| 4 | 105 | 4*14, 2*14 | 8*14 | 2 | |
| 4" High Pressure DTH Bits | |||||
| Type |
Diameter (mm) |
Buttons |
Flushing Holes |
||
| Front(No*mm) | Gauge(No.*mm) | ||||
| 1 |
DHD340 / SD4 / QL40 / M40 |
110 | 4*14, 2*14 | 8*14 | 2 |
| 2 | 115 | 4*14, 2*14 | 8*14 | 2 | |
| 3 | 121 | 4*14, 2*14 | 8*14 | 2 | |
| 4 | 127 | 4*14, 3*14 | 8*14 | 2 | |
| 5 | 130 | 4*14, 3*14 | 8*16 | 2 | |
| 6 | 133 | 4*14, 3*14 | 8*16 | 2 | |
| 5" High Pressure DTH Bits | |||||
| Type |
Diameter (mm) |
Buttons |
Flushing Holes |
||
| Front(No*mm) | Gauge(No.*mm) | ||||
| 1 |
DHD350 / SD5 / QL50 / M50 |
130 | 3*14, 4*14 | 9*16 | 2 |
| 2 | 133 | 3*14, 4*14 | 9*16 | 2 | |
| 3 | 140 | 3*16, 4*16 | 9*16 | 3 | |
| 4 | 146 | 3*16, 4*16 | 9*16 | 3 | |
| 5 | 152 | 3*16, 5*16 | 9*18 | 3 | |
| 6" High Pressure DTH Bits | |||||
| Type |
Diameter (mm) |
Buttons |
Flushing Holes |
||
| Front(No*mm) | Gauge(No.*mm) | ||||
| 1 |
DHD360 / SD6 / QL60 / M60 |
152 | 4*16, 4*16 | 8*18 | 2 |
| 2 | 155 | 4*16, 4*16 | 8*18 | 2 | |
| 3 | 159 | 4*16, 4*16 | 8*18 | 2 | |
| 4 | 165 | 4*16, 4*16 | 8*18 | 2 | |
| 5 | 172 | 4*18, 4*18 | 8*18 | 2 | |
| 6 | 178 | 4*18, 4*18 | 8*18 | 2 | |
| 7 | 190 | 3*18, 5*18 | 9*18 | 3 | |
| 8 | 203 | 3*18, 6*18 | 9*18 | 3 | |
| 8" High Pressure DTH Bits | |||||
| Type |
Diameter (mm) |
Buttons |
Flushing Holes |
||
| Front(No*mm) | Gauge(No.*mm) | ||||
| 1 |
DHD380 / SD8 / QL80 / M80 |
200 | 6*18, 6*18 | 9*18 | 3 |
| 2 | 203 | 6*18, 6*18 | 9*18 | 3 | |
| 3 | 216 | 6*18, 6*18 | 9*18 | 3 | |
| 4 | 219 | 6*18, 6*18 | 9*18 | 3 | |
| 5 | 222 | 6*18, 9*18 | 9*18 | 3 | |
| 6 | 226 | 3*18, 5*18 | 12*18, 6*18 | 3 | |
| 7 | 229 | 3*18, 5*18 | 12*18, 6*18 | 3 | |
| 8 | 241 | 3*18, 5*18 | 12*18, 6*18 | 3 | |
| 9 | 251 | 3*18, 6*18 | 12*18, 6*18 | 3 | |
| 10 | 254 | 3*18, 7*18 | 12*18, 6*18 | 3 | |
| 11 | 270 | 3*18, 8*18 | 12*18, 6*18 | 3 | |
| 12 | 305 | 6*18, 8*18 | 12*18, 9*18 | 3 | |
Specification DTH Hammer
|
Medium Pressure DTH Hammer |
Model |
Drilling Diameter (mm) |
Hammer Length (mm) |
External Diameter (mm) |
Working Pressure (Mpa) |
Air Consumption (m3/min) |
Torque (N.m) |
|
1 |
DTH930 |
ø90 - 120 |
870 |
ø80.5 |
0.8 - 1.2 |
6 |
180 |
|
2 |
DTH4.5 |
ø110 - 150 |
917 |
ø98 |
0.8 - 1.2 |
11 |
300 |
|
High Pressure DTH Hammer |
Model |
Drilling Diameter (mm) |
Hammer Length (mm) |
External Diameter (mm) |
Working Pressure (Mpa) |
Air Consumption (m3/min) |
Torque (N.m) |
|
1 |
DTH330 |
ø82 - 85 |
867 |
ø71 |
0.8 - 2.1 |
3 - 12 |
150 |
|
2 |
DTH335 |
ø90 - 93 |
908 |
ø81 |
0.8 - 2.1 |
4.3 - 14.2 |
205 |
|
3 |
DTH340 |
ø105 - 130 |
1052 |
ø92 |
0.8 - 2.1 |
3.5 - 18 |
304 |
|
4 |
DTH345 |
ø105 - 130 |
1034 |
ø98 |
0.8 - 2.1 |
3.5 - 15 |
335 |
|
5 |
DTH345K |
ø110 - 130 |
994 |
ø98 |
0.8 - 2.1 |
3.5 - 15 |
400 |
|
Efficient High Pressure DTH Hammer |
Product Code and Brief Description |
Drilling Diameter (mm) |
Hammer Length (mm) |
External Diameter (mm) |
Working Pressure (Mpa) |
Air Consumption (m3/min) |
Torque (N.m) |
|
1 |
DTH440 |
ø115 - 130 |
998 |
ø98 |
0.8 - 2.1 |
3 - 12 |
402 |
|
2 |
DTH450 |
ø130 - 152 |
1087 |
ø118 |
0.8 - 2.1 |
3 - 14 |
840 |
|
3 |
DTH460 |
ø165 - 216 |
1076 |
ø146 |
0.8 - 2.1 |
6.8 - 20 |
980 |
|
4 |
DTH480 |
ø203 - 254 |
1450 |
ø181 |
0.8 - 2.1 |
9.6 - 24.8 |
1870 |
|
Through Reverse Circulation DTH Hammer |
Model |
Drilling Diameter (mm) |
Hammer Length (mm) |
External Diameter (mm) |
Working Pressure (Mpa) |
Air Consumption (m3/min) |
Torque (N.m) |
|
1 |
DTHF335 |
ø90 - 105 |
1143 |
ø85 |
0.7 - 2.1 |
4.2 - 11.7 |
475 |
|
2 |
DTHF345 |
ø110 - 130 |
1281 |
ø105 |
0.7 - 2.1 |
5.7 - 14.2 |
600 |
|
3 |
DTHF355 |
ø135 - 155 |
1292 |
ø124 |
0.8 - 2.1 |
6.5 - 19.3 |
791 |
|
4 |
DTHF365 |
ø160 - 200 |
1345 |
ø154 |
0.8 - 2.1 |
9 - 18 |
950 |
|
5 |
DTHF385 |
ø200 - 254 |
1578 |
ø190 |
0.8 - 2.1 |
12 - 30.8 |
1040 |
|
6 |
DTHF3105 |
ø254 - 311 |
1440 |
ø250 |
0.8 - 2.4 |
15 - 34 |
1260 |
|
7 |
DTHF3125 |
ø311 - 360 |
1430 |
ø270 |
0.8 - 2.4 |
20 - 37.8 |
1250 |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.