Active Member
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[China]
Address: No. 018, Yaojiapo Road., Jinzhou New District, Ningxiang County
Contact name:Spring Huang
Changsha Tianhe Drilling Tools and Machinery Co.,Ltd. |
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Teamwhole Overburden Concentric Casing System With Two Blocks
| General Introduction |
Application Range
It is recommended to drill in rock formation where contains some ovals and fractures.
Design Principles
Make the casing follow easy and the equipment and operation simple
Outstanding Advantages
1. The stable and reliable working performance and the less vibration of drill rig.
2. Flexible to open and close.
Operation Procedure
1. when the drilling starts, the blocks slides down through the grooves on pilot bit,and reams to drive the casing shoes and tubes into the hole.
2. When finished the drilling in overburden rock formations, raise the drilling tools and the blocks will get closed through the grooves , and the drilling tools can be pulled out from the hole.
3. Next construction can be followed.
| Raw Material |
Steel:
first class special alloy steel with high strength, heat resistance and wearable
Carbide
The best tungsten carbides from China are commonly applied.
Tungsten carbide from European is also available.
| Specification |
1. Face: Flat,Convex,Concave,Drop-center.
2. Carbide Button Shape: Spherical,Semi-ballistic,Ballistic and Two-step
3. Bit Shank: COP/DHD/QL/SD/MACH/BR
| A | B | C | D | E | F |
Outer Dia. of Casing Tube | Inner Dia. of Casing Tube | Reamed Dia. | Min. Inner Dia. of Casing Shoe | Hammer Type | Drill Pipes |
| mm | mm | mm | mm | mm | |
| 168 | 149-155 | 184 | 140 | TH122 | 76,89 |
| 178 | 159-165 | 194 | 150 | TH122 | 76,89 |
| 193 | 173-180 | 206 | 164 | TH139 | 89,114 |
| 219 | 199-206 | 234 | 182 | TH139,TH180 | 89,114 |
| 244 | 224-231 | 260 | 210 | TH180,TH220 | 114 |
| 273 | 251-257 | 305 | 240 | TH180 | 114,127 |
| 323 | 301-310 | 348 | 284 | TH180,TH220 | 127 |
| 406 | 382-388 | 440 | 364 | TH220,TH275 | 127,140 |
| 457 | 433-439 | 488 | 413 | TH275 | 127,140 |
| 508 | 484-490 | 538 | 464 | TH275 | 140 |
| 558 | 534-540 | 590 | 514 | TH275,TH398 | 140 |
| 610 | 586-592 | 642 | 566 | TH275,TH398 | 140,168 |
| 660 | 636-642 | 694 | 615 | TH398 | 168 |
| 711 | 687-693 | 745 | 665 | TH398 | 168 |
| 762 | 738-744 | 798 | 716 | TH600 | 168 |
| 863 | 839-845 | 900 | 815 | TH600 | 168 |
| Quality Warranty |
Our company response for any quality problem caused by material or machining defect.
| Application |
Excellent for water well drilling, geothermal hole, hole blasting and etc.
| Our Service |
Teamwhole offers the market most comprehensive range of DTH hammers. There are hammer solutions for water well drillers, miners and quarry drillers as well as for contractors in construction, oil and gas. Teamwhole's DTH hammers are available in holes sizes from 3.5 to 48 inches in diameter.
Teamwhole's flexible and stable ODEX system wins great reputation in users. Reliable quality,innovative design and professional service ensure the fulfill of many projects.
We even offer reverse circulating RC hammers for exploration. We are the earliest in China for RC since 2004. Now the RC hammer and bits are delivered to Australia,South Africa,Russia and Mongolia in large scales.
More than 30 experts supports the technology and enhance the development.
| Markets |
Northern Europe: foundation, piling
Western Europe: water well and geothermal drilling
Russia: Oil, infrastructure and mining.
South east asia: mining and geothermal
South Africa: mining and water well drilling
Middle east: water well drilling
Oceania: mining, exploration and water well drilling
South America: water well drilling and mining
