Company Introduction:
We are able to manufacture, export and supply our clients excellent quality DTH & RC drilling tools, like DTH & RC hammers,bits,overburden casing system ,tricone bits and etc. These tools are meticulously manufactured with utmost perfection by utilizing superior quality raw materials and efficient machinery.
Product Introduction:
In the projects of drilling,drillers often meet with problems due to the loose land formation.These may cause troubles such as difficulty in drilling down,collapse of holes,damage of drilling tools,etc.To solve the problems,the best way is to use (ODEX)Overburden Drilling System which can prevent holes and drilling tools from damage,and support the holes by casing tubes.
Working Principle:
1. When drilling starts, the reamer swings out and reams the pilot-hole wide enough for the casing tube to slide down behind the drill bit assembly
2. When the required depth is reached, rotation is reversed carefully, whereupon the reamer swings in , allowing the drill bit assembly to be pulled up through the casing.
3. Casing tubes that are to be left in the drill hole should be sealed at the bottom of the hole by means of cement grout or some other sealing agent.
4. Drilling continues to the desired depth in the bedrock using a conventional drilling.
Technical Parameter:
| Casing Tube OD(mm) |
Casing Tube ID(mm) |
Reamed Dia(mm) |
Casing Shoe ID(mm) |
Hammer Type |
| 108 |
96 |
118 |
85 |
DHD3.5/QL30 |
| 114 |
102 |
123 |
90 |
DHD3.5/QL30 |
| 127 |
109 |
138 |
97 |
DHD340/QL40 |
| 140 |
128 |
152 |
115 |
DHD340/QL40/SD4/MISSION40 |
| 168 |
156 |
185 |
140 |
DHD350/SD5/QL50/MISSION50 |
| 178 |
158 |
195 |
150 |
DHD350/SD5/QL50/MISSION50 |
| 193 |
180 |
209 |
164 |
DHD360/SD6/QL60/MISSION60 |
| 219 |
205 |
237 |
182 |
DHD360/SD6/QL60/MISSION60 |
| 244 |
224 |
264 |
210 |
DHD380/SD8/QL80/MISSION80 |
| 273 |
259 |
308 |
240 |
DHD380/SD8/QL80/MISSION80 |
| 323 |
303 |
258 |
284 |
SD10/NUMA100 |
Application:
It is suitable for drilling water wells, geothermal wells, short micro piles ,medium mini-type grouting hole of building, dam and harbor project.
Dtail 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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