What is the working principle of diamond core bits? The drill bit that makes the cutting edge is called a diamond core bit. The drill bit is an integrated drill bit. The entire drill bit has no moving parts. The structure is relatively simple, with high strength, high wear resistance and impact resi
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How to classify core barrels? A section of pipe connected to the upper part of the drill bit to accommodate and protect the core during core barrel. This article will introduce the classification of core barrel. This article contains the following:n What is core barrel?n Single layer core barreln do
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TT36, TT46, TT56, TTT66, TT76, TT86, TT101
ROSCHEN
ROS-COB- TT36, TT46, TT56, TTT66, TT76, TT86, TT101
Product Description
AMLC, NMLC, HMLC, Wireline core barrel
Product description:
Generally, there are three kinds of core barrel depending on the core barrel tubes
Double Tube Core Barrels Double Tube Core Barrels
1. TT Series Core Barrel
Ultra-thin walled double tube core barrels, available diameters 46 and 56 mm. Very
thin cutting face allows very rapid rate of penetration through hard formations. They are
suitable for underground mining applications
2. T2 Series Double Tube Core Barrels
The T2 Series are thin wall double tube core barrel, used for surface exploration, especially mining applications.
Due to their thin kerf, these core barrels provide rapid penetration. Available in diameters 46, 56, 66, 76, 86, 101mm
3. T6 Series Double Tube Core Barrels
These are a continuation of the T2 series, but of a sturdier design and available in larger diameters,
76, 86, 101, 116. 131 and 146mm. They are applied in surface mining and geotechnical drilling
4. LTK 48 & LTK 60 Double Tube Core Barrels
The LTK series core barrels system is a thinner wall core barrel than T2 series. They offer a cost effective,
high production, which is designed for optimum production and core recovery in medium to extra hard rock formations.
Available sizes 48 and 60mm
5. WF Series Double Tube Core Barrels
They are geotechnical core barrels primarily designed for coring relatively soft formations in using face-discharge bits.
Simple construction and more resilient to damage than thin-wall barrels, but with slower enetration rate
6. WG Series Double Tube Core Barrels
There are single tube core barrels for WG series. Available in DCDMA sizes E, A, B, N, and H
7. TBW and TNW Core Barrels
These are thin-walled double tube core barrels, as T2 series but with DCDMA hole sizes B and N.
Used for surface exploration, specially mining applications. The thin kerf area allows rapid penetration
8. Wireline Double Tube Core Barrels
Wireline double core barrels are primarily used in deep coring. With an overshot device,
they eliminate the need to couple and uncouple the rod string each time the core is retrieved.
Available in DCDMA sizes A, B, N, H ,and P.
9. Chinese Standard Double Tube Core Barrels
10. Chinese Standard Wireline Double Tube Core Barrels
11. Jet-type Reverse Circulation Double Tube Core Barrels
Triple Tube Core Barrels
1. MLC (Triefus) Series Core Barrels
These triple tube core barrels are generally used for geotechnical purpose, designed to maximize core recovery
in soft formations. Available diameter sizes from 35-146mm.
2. Wireline Triple Tube Core Barrels
Wireline triple tube core barrels are generally required in broken, fractured formations. They incorporate a third,
split inner tube on base of wireline double tube core barrel. This can be pumped out of the inner tube after retrieval,
allowing the core to be examined in its in-situ state.
Single Tube Core BarrelsGenerally, there are three kinds of core barrel depending on the core barrel tubes
1. B Series Single Tube Core Barrels
B series are single tube core barrels, often used in situations where core preservation is not essential and for concrete coring. Available diameters 46-146mm
2. WG Series Single Tube Core Barrels
There are double tube core barrels for WG series. Available in DCDMA sizes E, A, B, N, and H.
3. Chinese Standard Single Tube Core Barrels
Size Available:
"Q" series AQ, BQ, NQ, HQ, PQ/AQTK, BQTK, BQ3, NQ2, NQ3, NQTT, HQ3, HQTT, PQ3, PQTT
T2 series T2 46, T2 56, T2 66, T2 76, T2 86, T2 101
T6 series T6 76, T6 86, T6 101, T6 116, T6 131, T6 146, T6S 101, T6S 116
T series T36, T46, T56, T66, T76, T86, T101
TT series TT36, TT46, TT56, TTT66, TT76, TT86, TT101
Z series Z46, Z56, Z66, Z76, Z86, Z101, Z116, Z131, Z146
B series B36, B46, B56, B66, B76, B86, B101, B116, B131, B146
WF series HWF, PWF, SWF, UWF, ZWF
WT series RWT, EWT, AWT, BWT, NWT, HWT
WM series EWM, AWM, BWM, NWM, HWM
WG series EWG, AWG, BWG, NWG, HWG
Others AMLC, NMLC, NMLC, HMLC, LTK48, LTK60, BGM, NGM, ADBG, TBW, TNW, ATW, BTW, NTW, NXD3, AX, NX, NXC, AXT, T6H, 4 9/16, NWD4, 412F, SK6L146, TT46, TB56, TS116, CHD101.
We supply A-Gauge impregnated core bit:AQ, AW, AGM;
Detail specification:
Specification of core bit :
Double tube surface | ||||
Size( surface exploration drill | Matric system(mm) | Imperial system( in ) | ||
Hole diameter | Core diameter | Hole diameter | Core diameter | |
BQ | 60 | 36.4 | 2.36 | 1.43 |
NQ | 75.7 | 47.6 | 2.98 | 1.88 |
HQ | 96.1 | 63.5 | 3.78 | 2.5 |
PQ | 122.7 | 85 | 4.83 | 3.34 |
Triple tube surface | ||||
NQ3 | 75.7 | 45 | 2.98 | 1.78 |
HQ3 | 96.1 | 61.1 | 3.78 | 2.41 |
PQ3 | 122.7 | 83 | 4.83 | 3.27 |