Impregnated Diamond Core Bit NQ HQ Ultramatrix core bits for
Mining, Exploration, Drilling
Impregnated Diamond Core Bit Mining, Exploration, Drilling
Product Attributes
Brand Name: ROSCHEN
Model Number: DCDMA international size
Related Keywords: Driling, Mining, mining equipments, impregnatged
core bits, coring, diamond core bits
Description by Manufacturer:
SIZE: AX, BX, NX, AS, BS, NS, NS2, NS3, HS, HS3, PS, PS3, T76, T56,
T46, T6116, T6101, T6131, T2101, NMLC, HMLC
USAGE:
Diamond Core Bits are attached to the foremost part of the Core
barrels to be used in direct drilling of the ground, and play the
most important role among the equipments that are used in drilling.
There are many types of bits classified and used according to the
purpose of drilling or ground conditions, and the bits are also
different in their material, shape, and performance.
So, it is economical and highly effective in drilling works to use
the proper bits after full understanding of the characteristics of
each bit. Diamond Core Bit is used for the drilling of hard rocks,
and Metal Bit is normally used for the ground or soft rocks.
Impregnated Core Bit is normally used in case Core is needed, while
Non Core Bit is used if Core is not needed.
However the drilling efficiency and economic feasibility increase
if Core Bit is used while Core is not needed.
Features of Impregnated Diamond Core Bits of Roschen:
1. Reached up to the global quality level.
2. In most countries, rocks are generally very strong. Diamond Core
Bits of Roschen have an excellent drilling rate, at strong rocks as
they have been adapted to such hard and strong rocks.
3. Firmly positioned as a leading company in global market.
4. Bits can be diversely produced in any sizes and specifications
that are needed.
5. Drilling Speed of the Impregnated Core Bit is very excellent
comparing with those of other companies.
6. Premium product that Synthetic Diamond Powder, Metal Powder, and
Shank of top quality are used.
7. The hardness of Matrix is the most important factor in selecting
bits.
8. Large size diamond with the strong matrix is used for soft
rocks.
9. Medium size diamond with the matrix of medium strength is used
for the rocks of medium strength.
10. Small size diamond with soft matrix is used for strong rocks.
| Wireline diamond core bits specifications |
| SIZE | CORE Ø | HOLE Ø |
| AQTK | 35.5 mm (1-3/8 in) | 48 mm (1-7/8 in) |
| BQ | 36.4 mm (1-7/16 in) | 60 mm (2-3/8 in) |
| BQTK | 40.7 mm (1-5/8 in) | 60 mm (2-3/8 in) |
| NQ | 47.6 mm (1-7/8 in) | 75.7 mm (3 in) |
| NQTK (NQ2") | 50.6 mm (2 in) | 75.7 mm (3 in) |
| NQ3 | 45 mm (1-3/8 in) | 75.7 mm (3 in) |
| HQ | 63.5 mm (2-1/2 in) | 96 mm (3-3/8 in) |
| HQ3 | 61.1 mm (2-3/8 in) | 96 mm (3-3/8 in) |
| PQ3 | 85 mm (3-3/8 in) | 122.6 mm (4-7/8 in) |
| PQ3 | 83 mm (3-1/4 in) | 122.6 mm (4-7/8 in) |
Impregnated Diamond Core Bit Matrxi Bond Hardness:
| Matrix | T1, T2 | T3, T4 | T5 ~ T8 | T9 ~ T11 |
| Section / kind of rocks | Soft rock | Medium hard rock | Hard rock | Very hard & Ultra hard rock |
|
| Diamond mesh | Large ←→ small |
| Matrix Hardness | Hard ←→ Soft |
| Impregnated Core Bit Matrix Selection Chart |
| Rock Hardness | Rock Characteristics | Type of Rock | Taesung |
| DCDMA | MOHS | (Example) | (T-Series) |
| 7 | 8~9 | Extremely Hard, Unbroken Fine Grained Formation, Non-abrasive | Quartz
Chert
Jasper | T-9, 10 |
| 7 | 8 | Very Hard, Unbroken Fine Grained Formation, Non-abrasive | Quartzite
Taconites
Diories | T-8, 9 |
| 5 | 7 | Hard, Fine to Medium Grained Unbroken Formation | Granite
Andesite
Gneiss
Schist
Basalt | T-7, 8, 9 |
| 4 | 6 | Moderately Abrasive, Medium to
Coarse Grained Formations
Solid to Slightly Fractured | Pegmatite
Monzanite
Gabro | T-5, 6, 7 |
| 3 | 5 | Abrasive, Medium to Coarse
Grained Formations, Broken | Quartzite
Conglomerate
Sandstone
Rhyloite | T-3, 4 |
| 4 | 4~5 | Abrasive, Medium to Coarse
Grained Formations, Broken | Sandstones
Pegmatite
Taconites
Quartzite | T-2, 3 |
| 1 | 4 | Extremely Abrasive, Medium to
Coarse Grained Highly Fractured,
Gaulty and Sheared Ground | Sandstones
Quartzite
Limestone | T-1, 2 |
