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[China]
Trade Verify
Address: 65 EAST XINHUAN ROAD, SHANGHAI, CHINA
Contact name:Bill, George, Michael
ROSCHEN GROUP |
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Verified Suppliers
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T2 76, 86, 101 Double Tube core barrels for hard rock formation drilling
T2 Series core barrels
Double tube
T2 double tube core barrels are widely used and suitable for coring
in all hard and soft formations, with water flushing and/or polymer
fluid. The thin walls provide fast penetration, lower bit cost and
larger core sample.
They are in accordance with the metric standards ISO 3552-1.1992.
All spare parts and accessories for T2 core barrels are
manufactured from the best quality raw materials.
The inner and outer tubes are manufactured from cold drawn seamless
steel tubes with very high tensile strength and straightness
providing the same properties as our drill rods and casing tubes.
Core lifters (springs) are available in standard and in basket
type. Basket type is suitable for very soft and fine grained
formations.
Core lifter cases can be case hardened to increase their wear
resistance, upon special request.
Available in sizes 101, 86, 76, 66, 56, 46 & 36mm.
TECHNICAL SPECIFICATIONS
| TECHNICAL SPECIFICATIONS | |||
| SIZE | Core bit set | Core bit set | Thread |
| O.D. | I.D. | connection** | |
| (mm) | (mm) | (head assembly) | |
| T2 101 | 101 | 84 | 50MM |
| T2 86 | 86 | 72 | 50MM |
| T2 76 | 76 | 62 | 50MM |
| T2 66 | 66 | 52 | 50MM |
| T2 56 | 56 | 42 | 50MM |
| T2 46 | 46 | 32 | 42MM |
| T2 36 | 36 | 22 | 33.5MM |
The standard effective lengths are 3.0 & 1.5 meters. Other
lengths and short starters are available, if requested.
**Other thread connections on head assembly may be manufactured-if dimensionally possible- upon request.
Complete double tube core barrels are supplied without core bits and reaming shells. They can be supplied separately.
T2 double tube core barrels can easily convert to:
. Single tube core barrels
. Triple tube core barrels (coreliners)
