5" RE040 / RE542 / RE545 Through Reverse Circulation Downhole Hammer DTH Hammer And Bits
5" RE040 / RE542 / RE545 Through Reverse Circulation Downhole Hammer DTH Hammer And Bits
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
Specification of DTH Bits
|
Product Code and Brief Description |
Flushing Holes |
Diameter (mm) |
Weight (kg) |
Gauge Buttons ( No.x mm) |
Front Buttons ( No. x mm) |
DTH Hammer |
|
DTH65PQ |
1 |
68 - 72 |
1.5 |
4 x12 |
3 x 12 |
DTH65 |
|
DTH75PQ |
3 |
75 - 77 |
2.4 |
5 x 12 |
3 x 12 |
DTH70 |
|
DTH76PQ |
2 |
76 - 78 |
2.5 |
5 x 12 |
3 x 12 |
DTH76 |
|
DTH76-78 |
2 |
78 - 82 |
2.6 |
5 x 12 |
3 x 12 |
DTH76 |
|
DTH80PQ |
3 |
82 - 84 |
3 |
5 x 12 |
6 x 12 |
DTH80, DTH80X |
|
DTH90A |
3 |
90 - 95 |
3.6 |
6 x 14 |
4 x 12 |
DTH80, DTH80X |
|
DTH80XD-90 |
3 |
90 - 95 |
3.4 |
6 x 12 |
4 x 12 |
DTH80XD |
|
DTH80-II-80 |
3 |
80 - 82 |
3 |
5 x 12 |
4 x 12 |
DTH80-II |
|
DTH90B |
3 |
90 - 95 |
3.8 |
6 x 14 |
4 x 12 |
DTH90, DTH90-I |
|
DTH90T1 |
2 |
90 - 95 |
3.6 |
6 x 14 |
1 x 12, 3 x 12 (Spherical) |
DTH90, DTH90-I |
|
DTH90T2 |
2 |
90 - 95 |
3.8 |
6 x 14 ( Spherical) |
4 x 12 (Spherical) |
DTH90, DTH90-I |
|
DTH90T3J |
3 |
90 - 95 |
3.6 |
6 x 14 (Ballistic) |
4 x 12 (Ballistic) |
DTH90, DTH90-I |
Technical Manual of DTH Hammer
|
Low 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) |
Impact Frequency (n/min) |
|
1 |
DTH65B |
ø68 - 70 |
745 |
ø61.2 |
0.5 - 0.7 |
2.5 |
51 |
≥810 |
|
2 |
DTH70 |
ø72 - 74 |
803 |
ø67.2 |
0.5 - 0.7 |
3 |
70 |
≥810 |
|
3 |
DTH76 |
ø74 - 76 |
766 |
ø67.2 |
0.5 - 0.7 |
3 |
75 |
≥810 |
|
4 |
DTH80 |
ø80 - 82 |
796 |
ø72 |
0.5 - 0.7 |
5 |
81 |
≥800 |
|
5 |
DTH80-II |
ø75 - 80 |
756 |
ø67 |
0.5 - 0.7 |
3 |
75 |
≥810 |
|
Medium 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) |
Impact Frequency (n/min) |
|
1 |
DTH930 |
ø90 - 120 |
870 |
ø80.5 |
0.8 - 1.2 |
6 |
180 |
≥700 |
|
2 |
DTH4.5 |
ø110 - 150 |
917 |
ø98 |
0.8 - 1.2 |
11 |
300 |
≥800 |
|
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) |
Impact Frequency (n/min) |
|
1 |
DTH330 |
ø82 - 85 |
867 |
ø71 |
0.8 - 2.1 |
3 - 12 |
150 |
≥800 |
|
2 |
DTH335 |
ø90 - 93 |
908 |
ø81 |
0.8 - 2.1 |
4.3 - 14.2 |
205 |
950 - 1500 |
|
3 |
DTH340 |
ø105 - 130 |
1052 |
ø92 |
0.8 - 2.1 |
3.5 - 18 |
304 |
≥800 |
|
4 |
DTH345 |
ø105 - 130 |
1034 |
ø98 |
0.8 - 2.1 |
3.5 - 15 |
335 |
≥800 |
|
5 |
DTH345K |
ø110 - 130 |
994 |
ø98 |
0.8 - 2.1 |
3.5 - 15 |
400 |
≥820 |
|
6 |
DTH350 |
ø130 - 152 |
1387 |
ø114 |
0.8 - 2.1 |
5.7 - 18 |
590 |
810 - 1470 |
|
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) |
Impact Frequency (n/min) |
|
1 |
DTH440 |
ø115 - 130 |
998 |
ø98 |
0.8 - 2.1 |
3 - 12 |
402 |
850 - 1320 |
|
2 |
DTH450 |
ø130 - 152 |
1087 |
ø118 |
0.8 - 2.1 |
3 - 14 |
840 |
850 - 1600 |
|
3 |
DTH460 |
ø165 - 216 |
1076 |
ø146 |
0.8 - 2.1 |
6.8 - 20 |
980 |
860 - 1610 |
|
4 |
DTH480 |
ø203 - 254 |
1450 |
ø181 |
0.8 - 2.1 |
9.6 - 24.8 |
1870 |
1100 - 1350 |
|
Through Reverse Circulation 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) |
Impact Frequency (n/min) |
|
1 |
DTHF335 |
ø90 - 105 |
1143 |
ø85 |
0.7 - 2.1 |
4.2 - 11.7 |
475 |
≥800 |
|
2 |
DTHF345 |
ø110 - 130 |
1281 |
ø105 |
0.7 - 2.1 |
5.7 - 14.2 |
600 |
≥800 |
|
3 |
DTHF355 |
ø135 - 155 |
1292 |
ø124 |
0.8 - 2.1 |
6.5 - 19.3 |
791 |
810 - 1200 |
|
4 |
DTHF365 |
ø160 - 200 |
1345 |
ø154 |
0.8 - 2.1 |
9 - 18 |
950 |
600 - 1100 |
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