Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.
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Efficient ODEX115-DHD340 for casing 140mm in overburden rock casing drilling
Advantage
1. efficient drilling in unstable rock with casing down
2. swift shift between drill to open and reverse to close
3. low cost with parts replacement
Competibility
1. long service life
2. no breakage during the service life term
3. easy to disassembly after drilling
Specifications
1. Casing outer diameter:140mm
2. Casing inner diameter:125~128mm
3. Pass through diameter:115mm
4. Reamed diameter:152mm
5. Matched hammer: DHD340.COP44.M40,SD4,QLX40
1. Rapid removal of cuttings; High penetration rate, especially in resistant rock formation;
2. Easy soil and groundwater sampling during drilling;
3. Possible to measure yield estimate at selected depth in the formation;
4. Advantageous in unconsolidated formations with a high risk of caving
Main markets
Chile, Brazil, South Africa, Nigerial, Italy, Russia, Canada, Austrialia, Korea, Mongolia, Turkey, and etc.
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