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Concentric overburden ring drill bit
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Product Details
| Place of Origin | Hunan, China | Brand Name | Tianhe | |
| Model Number | Symmetric overburden casing system 90-815 | Type | Other, Concentric casing system | |
| Material | Other, carbide, Carbide | Use | Other, rock formation |
Product Description
Specifications
Applied to the drilling where rock formation is overburden and need casing tube to supportCertificate: ISO9001:2008, SONCAP
ODEX casing system with Casing shoe and drill bit
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
The stable and reliable working performance and the less vibration of drill rig and flexible to open and close.
Order Guide: A+B+C+D+G
Specifications
A | B | C | D | E | F | G |
Outer Dia. of Casing Tube | Inner Dia. of Casing Tube | Reamed Dia. | Min. Inner Dia. of Casing Shoe | Hammer Type | Drill Pipes | Max. Outer Dia. of Normal Bit |
mm | mm | mm | mm |
| mm | mm |
108 | 93-99 | 118 | 86 | TH79 | 76 | 77 |
114 | 101-103 | 127 | 91 | TH79 | 76 | 82 |
127 | 114-116 | 136 | 101 | TH79 | 76 | 92 |
140 | 124-127 | 152 | 117 | TH98 | 76 | 105 |
146 | 127-132 | 154 | 117 | TH98 | 76 | 105 |
168 | 149-155 | 184 | 140 | TH122 | 76,89 | 125 |
178 | 159-165 | 194 | 150 | TH122 | 76,89 | 140 |
193 | 173-180 | 206 | 164 | TH139 | 89,114 | 150 |
219 | 199-206 | 234 | 184 | TH139,TH180 | 89,114 | 165 |
244 | 224-231 | 260 | 210 | TH180,TH220 | 114 | 190 |
273 | 251-257 | 305 | 240 | TH180,TH220 | 114,127 | 220 |
323 | 301-310 | 348 | 284 | TH180,TH220 | 127 | 255 |
406 | 382-388 | 440 | 364 | TH220,TH275 | 140 | 340 |
457 | 433-439 | 488 | 413 | TH275 | 140 | 385 |
508 | 484-490 | 538 | 464 | TH275 | 140 | 440 |
558 | 534-540 | 590 | 514 | TH275,TH398 | 140 | 485 |
610 | 586-592 | 642 | 566 | TH275,TH398 | 168 | 540 |
660 | 636-642 | 694 | 615 | TH398 | 168 | 590 |
711 | 687-693 | 745 | 665 | TH398 | 168 | 640 |
762 | 738-744 | 798 | 716 | TH600 | 168 | 685 |
863 | 839-845 | 900 | 815 | TH600 | 168 | 785 |
How to complete the whole deal
Step:
1. Firstly decide the design, material and color
2. Decide the size in accordance with client's requirement and our
recommendation
3. We will give the best offer.
4. Client's accept the offer and we send proforma invoice.
5. Client transfers 30%-50% deposit and production begins
6. After production, we will send ready products photo
7. After client's confirmation, we will arrange shipment, and send
copy shipping documents like B/L, commercial invoice and
packing list
8. Client transfer balance payment and we will send original
documents by DHL or EMS
Contact Us
- Changsha Tianhe Drilling Tools And Machinery Co., Ltd.
- Contact nameSpring Huang Chat Now
- Phone86-731-85853281,13077324210
- AddressLianfeng Country, Hanpu Town, Yuelu Section, Changsha, Hunan
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