The impregnated diamond bitsare the most commonly useful bits in the mineral exploration industry, as they have the widest range of application. The carefully selected grades of high quality synthetic diamond are distributed in the depth of bits’ matrix series. The matrix layer of the crown contains a uniform distribution of crystals that are embedded in a powdered metal bond. The matrix is designed to expose new diamonds to the bits' cutting face as wearing occurs. Fast penetration rate is maintained as a result of this action. The main technical parameters of bits are diamond specifications, like type, size, concentration and grade, as well as matrix hardness type and crown shapes, which are selected according to the hardness and abrasiveness of the formation to be drilled. If user can make rational selections according to the rock formations, then they can get satisfied drilling performance on various formations with different hardness.
Impregnated Core Bit Video
PQ Impregnated Diamond Core Bit W Matrix
Size |
PQ |
Design |
DCDMA |
Outer Diameter MAX(mm) |
122.30 |
Outer Diameter MAX(in) |
4.815 |
Outer Diameter MIN(mm) |
121.80 |
Outer Diameter MIN(in) |
4.795 |
Inner Diameter MAX(mm) |
85.09 |
Inner Diameter MAX(in) |
3.350 |
Inner Diameter MIN(mm) |
84.84 |
3.34Inner Diameter MIN(in) |
3.340 |
Hole Diameter(mm) |
122.7 |
Hole Diameter(in) |
4.81 |
Core Diameter(mm) |
85.0 |
Core Diameter(in) |
3.34 |
Hole Area(cm2) |
117.2 |
Hole Area(in2) |
18.24 |
Core Area(cm2) |
56.7 |
Core Area(in2) |
8.76 |
Matrix Height :6mm,8mm,9mm,10mm,12mm,14mm,16mm are available.6mm-8mm (most cost-effective), 8mm-10mm (long service life), 12mm-16mm (super service life)
Bit Crown Profiles: "W" profile, "Flat" profile, "Semi-round" profile, "Cross" profile, "Gear profile"
Waterways: Various waterways are available for diamond impregnated bits. Differing waterways allow for better flushing in various ground conditions and drilling systems.
Threads: standard Q threads as well as thread types required by clients are available
Maxtrix Selection Guide For Impregnated Core Bits
Matrix Hardness |
Rock Hardness |
Abrasiveness |
Rock Type |
HRC50 |
Soft |
Medium |
Clay, shale, siltstone, cypsum |
HRC48~50 |
Soft |
Very high |
Ash stone, coal, argillite, volcanics, sandy pebble |
HRC45~48 |
Medium soft |
Very high |
Sandstone,sandy shale, lithoid limestone, limonite sandstone |
HRC40~45 |
Medium |
High |
Medium-hard limestone,medium-hard shale, ash stone |
HRC38~42 |
Medium |
Medium |
Marble, hard schist, hard streak stone |
HRC38 |
Medium hard |
Medium |
Diabase, andesite, gneiss |
HRC35~38 |
Medium hard |
Medium |
Grandiorite, Limonite |
HRC32~35 |
Hard |
Medium to low |
Granite, basalt, hard streak stone |
HRC25~30 |
Hard |
Medium to low |
Rhyolite, crystauize, guneiss, quartz porphyry |
HRC20~25 |
Extreme hard |
Medium to low |
Silicious stone, hard sandstone |
HRC10~20 |
Ultra hard |
Low |
Rhyolite, dense quartzite, iron stone |
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
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, ETW, AWT, BWT, NWT, HWT (Single/Double Tube)
WG Series
EWG, AWG, BWG, NWG, HWG (Single/Double Tube)
WM Series
EWM, AWM, BWM, NWM
Others
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.