Symmetric Overburden Drilling Tools With Casing System
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Symmetric Drilling Tools with Casing Tube
Retrievable Symmetric Drilling tools with casing tube step-by-step:
1. When the drilling starts, the central bit drives the ring bit down the hole, meanwhile the casing shoe and casing tube follow down together.
2. When arriving at the bedrock, reversely rotate the tools and the central bit is pulled out from the hole.
3. During pouring the concretes through the casing tube, pull out the casing tube with the ring bit synchrony.
Permanent Symmetric Drilling Tools with casing tube step-by-step:
1. When the drilling starts, the central bit drives the ring bit down the hole, meanwhile the casing shoe and casing tube follow down together.
2. When arriving at the bedrock, reversely rotate the tools and the central bit is pulled out while leaving the ring bit in the hole bottom.
3. Pour the concretes into the casing tube or move to the next fieldwork process.
Assembly Code | Hammer | Drill pipe dia.(mm) |
TGZ75-3.5-108/7.5 | DHD3.5 | 76 |
TGZ80-3.5-114/6 | DHD3.5 | 76 |
TGZ90-3.5-127/6.5 | DHD3.5 | 76 |
TGZ103-340-140/6 | DHD340A | 76 |
TGZ106-340-146/7.5 | DHD340A | 76 |
TGZ121-350-168/10.5 | DHD340R | 76 / 89 |
TGZ130-350-168/8 | DHD340R | 76 / 89 |
TGZ136-350-178/9 | DHD340R | 76 / 89 |
TGZ139-350-183/10 | DHD340R | 76 / 89 |
TGZ148-360-194/6.5 | DHD360 | 114 |
TGZ163-360-219/7 | DHD360 | 114 |
TGZ163-360-219/12.5 | DHD360 | 114 |
TGZ218-380-273/11.5 | DHD380 | 114 / 140 |
TGZ218-380-273/6.5 | DHD380 | 114 / 140 |
TGZ253-110-324/9.5 | DHD110 | 140 / 194 |
TGZ338-112-406/9.5 | DHD112 | 194 / 273 |
Symmetric/Centrex/Symmitrix Drilling System
Symmetric is a concentric drilling system with retrievable pilot bits.
This system drills in any direction and in any type of ground condition.
It is, in fact, the most flexible and efficient overburden system on the market today.
The Symmetric components are made up of:
---A pilot bits with large internal flushing holes and external flushing grooves
---Symmetrical ring bit (reamer) with internal bayonet coupling
---Casing shoe for driving of casing.
The Pilot bits is attached to any common DTH hammer shank.
Business Nature
Manufacturer
No. Employees
258 people
Year Established
1995
Annual Turnover
US$10 Million - US$50 Million
Country/Region
Yichang, China
Main Products
Drill Bits...
Legal Status
Manufacturer
Payment Terms
Cash, Western Union (WU), PayPal, Credit Card (CC), Letter of Credit (L/C), Bank wire (T/T)
◆ Mission: Orientated by customers, Wooke is committed to developing and upgrading its competent production line for quality Rock Drilling Tools supplying the global drilling industry. ◆ Vision: Wooke strives to be a worldwide first-class Rock Drill Equipment manufacturer with its "craftsman's spirit". ★ Establishment in 1995 ★ National High-tech enterprises ★ Strong R&D capability: over 40 self-owned Intellectual Properties ★ China Rock-Drill Steel and Tools Association Permanent Member ★ Over 20 years designing and manufacturing top class Rock Tool ★ Professional services in drilling industry