Eccentric Casing System
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Overburden drilling system
Looking for an efficient and economical solution for overburden drilling? Look no further than our eccentric casing system.
This specialized drilling tool is equipped with an ejectable eccentric bit that can expand to the required diameter at the bottom of the hole.
In most geological conditions, the eccentric casing system is the most cost-effective way for well drilling and geothermal drilling. It is widely used in micro-pile construction, dam and port development, and small-scale grouting operations, making it a popular choice among construction teams. Thanks to its cleverly designed winged expansion bit, the drill head can be recovered and reused, making it more ideal than other similar drilling tools for shallow hole operations.
Specifications
Model | Outer diameter (mm) | Inner diameter (mm) | Reamed diameter (mm) | Inner diameter of casing shoe (mm) | Hammer type | Drill pipe (mm) |
ODEX80 | 108 | 93-99 | 118 | 87 | 3 inch hammer | 76 |
ODEX90 | 114 | 102-108 | 123 | 93 | 3 inch hammer | 76 |
ODEX100 | 127 | 114-117 | 136 | 102 | 3 inch hammer | 76 |
ODEX114 | 140 | 124-128 | 152 | 115 | 4 inch hammer | 76 |
ODEX120 | 146 | 130-134 | 154 | 121 | 4 & 5 inch hammer | 76 |
ODEX140 | 168 | 148-156 | 185 | 140 | 5 inch hammer | 89 |
ODEX150 | 178 | 158-166 | 195 | 150 | 5 inch hammer | 89 |
ODEX165 | 194 | 174-182 | 211 | 166 | 6 inch hammer | 114 |
ODEX190 | 219 | 199-207 | 237 | 193 | 6 inch hammer | 114 |
ODEX210 | 245 | 225-233 | 260 | 210 | 8 inch hammer | 114 |
ODEX240 | 273 | 253-257 | 308 | 241 | 8 inch hammer | 114 |
ODEX280 | 325 | 305-309 | 378 | 281 | 8 inch hammer | 114 |
Features
- Fast debris removal and high drilling rates, especially in stable rock formations such as basalt.
- Easy sampling of soil and groundwater during drilling operations.
- Capable of measuring the yield strength of selected rock formations at depth.
- Suitable for drilling in unstable loose rock formations.
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