Down the hole hammers |
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Down the hole hammers |
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 Down
the hole hammers are the ideal tools for rock drilling in water
wells, mining and quarry, consolidation and injection.
The last generation series of hammer dth is formed by valveless
pneumatic tools with a unique design that makes it one of the most
powerful and universal hammers dth on today's market, that can work
with pressure up to 25 BAR.
On the table, you will find the various models oh dth hammers
available with the main technical features.
Hole sizes from 60 to 609 mm.
Model |
Tool O.D. |
Max working pressure |
Top sub connection |
Length w/out bit |
Weight (KG) |
Bit size range (mm.) |
1" |
53 mm. |
17 Bar |
R.D. 40 |
768 mm. |
8 |
60 - 64 |
2" |
63 mm. |
17 Bar |
R.D. 50 |
866 mm. |
13 |
70 - 76 - 80 |
3" |
78 mm. |
25 Bar |
2 
A.R. Pin |
908 mm. |
22 |
85 - 90 - 95 |
4" |
96 mm. |
25 Bar |
2
A.R. Pin |
950 mm. |
35 |
101 - 105 - 110 - 115 - 120 - 127 |
5" |
116 mm. |
25 Bar |
3 
A.R. Pin |
1100 mm. |
68 |
127 - 130 - 133 - 140 - 146 - 150 |
6" |
138 mm. |
25 Bar |
3
A.R. Pin |
1180 mm. |
120 |
152 - 158 - 165 - 178 - 190 - 200 - 216* |
8" |
172 mm. |
25 Bar |
4
A.R. Pin |
1270 mm. |
175 |
191 - 200 - 216 - 219 - 250 - 270 - 305* |
10" |
226 mm. |
25 Bar |
6 
A.R. Pin |
1623 mm. |
345 |
250 - 270 - 280 - 305 - 311 - 330 |
12" |
273 mm. |
17 Bar |
6
A.R. Pin |
1700 mm. |
500 |
305 - 311 - 350 - 375 - 406 - 445 |
15" |
320 mm. |
17 Bar |
8
A.R. Pin |
1925 mm. |
860 |
445 - 533 - 560 - 584 - 609 |
* Non-standard diameters
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"Mincon Rockdrills" down hole hammers |
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"Mincon Rockdrills" dth hammer
specifications
Hammer model |
Bit shank type |
Minimum bit size |
Outside diameter |
Length without bit |
Mincon 3.5 |
DHD3.5 |
95mm |
85mm |
880mm |
Mincon 4HR |
DHD340A |
110mm |
97mm |
1031mm |
Mincon 5DH |
DHD350R |
136mm |
124mm |
1149mm |
Mincon 6DH |
DHD360 |
152mm |
140mm |
1128mm |
Mincon 8DH |
DHD380 |
200mm |
181mm |
1314mm |
 A
"Down-the-Hole" Hammer is probably the most important component on
the drill rig and the DTH system holds many advantages over the
alternatives, for instance:
Rotary Drilling is fine for large diameter holes in softer more
friable rocks but less effective in hard rock or where small
diameter holes are needed.
Top Hammer (Drifter)drilling system can produce satisfactory
results for short hole drilling in hard homogenous rock conditions
but would likely experience difficulty in deep holes and in soft
ground or with large diameters.
The DTH system is by far the most versatile and can be used very
successfully in a wide range of ground conditions from soft,through
medium to very hard.
Small or large diameter holes with depth capability are all
within the scope of the DTH system, which is recognised for
providing clean, truly aligned bore holes at high drilling rates
with minimal operating cost.
Some unique features of DTH system:
- Capable of drilling in almost all ground conditions
- Constant energy directly behind the bit provides: speed with
less power loss & greater hole accuracy.
- Rigid drill string improves hole alignment
- Air flow volume provides efficient flushing and cleaner holes
- Choice of hole diameters are available with the same Hammer
- Easy to service and mantain
- Large chip drilling provides speed with minimal dust emission
These factors are very important to users operating in the many
applications within the drilling industry, which can include:
Blast Hole - Water Well - Oil & Gas - Rock Anchor - Ground
Consolidation - Pile - Seismic - Directional and Mineral Exploration
Drilling.
Mincon DTH Hammers provide customers with these distinct
benefits, as well as being able to operate across a wide air
pressure range and still continue to provide maximum output with
comforting reliability.
Mincon Hammers incorporate unique designs, use special steel and
undergo closely guarded processes to make them stand out from other
makes.
Mincon offer:
- Additional Flushing capability for cleaner holes, particularty
at depth
- Case hardened outer components for reduced wear in abrasive
rocks
- Heavy Duty options for tougher conditions
- Reversible Wear Sleeves on the larger models for extra life
- Effective Check Valve for drilling in wet holes
- Unique internal mounting concept removes need for shims or
special tools
Specification sheets of each hammer dth
model available.
Contact our offices:
tech@adriatech.com
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