Core Drilling Accessories PWL / PWL3 Impregnated Diamond Core Cutting Drill Bits
1. Impregnated diamond core bit
It’s most popular and commonly in the mineral’s exploration field and geology’s exploration field. Nowdays Our company produce three types(Master Series, Navigator Series, Junior Series) is recognized and recommended by more and more customers.
We preciously selected grades of top grade synthetic diamond are distributed in the depth of impregnated bit’s matrix series.The matrix layer of the crown contains a uniform distribution of these crystal that are embedded in a powdered metal bond, for improving lifespan and rate of penetration. The best record of our bit in south africa, single bit’s life span reach amazing 614.40m
{1}Assure diameter of Impregnated bit
Type | Core bit | |||
Outer Diameter | Inner Diameter | |||
Inch | mm | Inch | mm | |
BTW | 2.345 | 59.56 | 1.667 | 42.35 |
NTW | 2.965 | 75.31 | 2.218 | 56.35 |
HTW | 3.762 | 95.57 | 2.809 | 71.35 |
A/WL | 1.875 | 47.63 | 1.062 | 26.97 |
B/WL | 2.345 | 59.56 | 1.433 | 36.4 |
B/WL-3 | 2.345 | 59.56 | 1.32 | 33.53 |
N/WL | 2.965 | 75.31 | 1.875 | 47.63 |
N/WL-3 | 2.965 | 75.31 | 1.775 | 45.08 |
H/WL | 3.762 | 95.57 | 2.5 | 63.5 |
H/WL-3 | 3.762 | 95.57 | 2.406 | 61.11 |
P/WL | 4.805 | 122.05 | 3.345 | 84.96 |
P/WL-3 | 4.805 | 122.05 | 3.27 | 83.06 |
T2-56 | 2.205 | 56 | 1.642 | 41.7 |
T2-76 | 2.992 | 76 | 2.429 | 61.7 |
T2-86 | 3.385 | 86 | 2.823 | 71.7 |
T2-101 | 3.976 | 101 | 3.295 | 83.7 |
T6-101 | 3.976 | 101 | 3.11 | 79 |
T6-131 | 5.157 | 131 | 4.252 | 108 |
System | Fluid volume |
Rock hardness
|
Rotation Speed (rpm) | Penetration speed (in/min-cm/min) | Bit weight range | ||||||||||
gpm | l/min | 200(r/in) | 250(r/in) | 80(r/cm) | 100(r/cm) | Lb | kg | ||||||||
BWL |
7.0-9.5 |
27-36 | H | 1000 | 1400 | 5 | 7 | 4 | 5.6 | 12.5 | 17.5 | 10 | 12 | 5000-8000 | 2275-3650 |
M | 1000 | 1200 | 5 | 6 | 4 | 4.8 | 12.5 | 15 | 10 | 12 | 3500-6000 | 1600-2725 | |||
S | 800 | 1200 | 4 | 6 | 3.2 | 4.8 | 10 | 15 | 8 | 12 | 2500-3500 | 1150-1600 | |||
NWL |
9.5-12 |
36-45 | H | 1000 | 1200 | 5 | 6 | 4 | 4.8 | 12.5 | 15 | 10 | 12 | 6000-8000 | 2725-3650 |
M | 800 | 1200 | 4 | 6 | 3.2 | 4.8 | 10 | 15 | 8 | 12 | 4000-6000 | 1800-2725 | |||
S | 600 | 1000 | 3 | 5 | 2.4 | 4 | 7.5 | 12.5 | 6 | 10 | 2500-3500 | 1150-1600 | |||
HWL |
12.0-14.5 |
45-55 | H | 800 | 1000 | 4 | 5 | 3.2 | 4 | 10 | 12.5 | 8 | 10 | 6000-10000 | 2725-4550 |
M | 600 | 1000 | 3 | 5 | 2.4 | 4 | 7.5 | 12.5 | 6 | 10 | 4000-8000 | 1800-3650 | |||
S | 600 | 800 | 3 | 4 | 2.4 | 3.2 | 7.5 | 10 | 6 | 8 | 3000-6000 | 1350-2725 | |||
PWL |
20-30 |
75-110 | H |
400 |
600 |
2 |
3 |
1.6 |
2.4 |
5 |
7.5 |
4 |
6 | 6000-12000 | 2725-5500 |
M | 5000-10000 | 2275-4550 | |||||||||||||
S | 300 | 500 | 1.5 | 2.5 | 1.2 | 2 | 3.75 | 6.25 | 3 | 5 | 4000-8000 | 1800-3650 |