Customization: | Available |
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Standard: | RoHS, BS, DIN, JIS, AISI, API |
Length: | 0.5m,1m,1.5m,3m |
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Tangshan Jinshi offers a full range of surface application core barrels. Available in standard double tube core barrels for easy conversion to triple tube configuration in broken ground.
The core barrel assembly is composed of the inner-tube group and outer-tube group. The inner-tube group is composed of:
Head Assembly
Inner Tube
Core Lifter Case
Core Lifter
Stop Ring
The inner-tube group collects the core sample during the drilling process and is independent of the outer-tube group. The outer-tube group is composed of the remainder of the core barrel components:
Locking Coupling
Adapter Coupling
Outer Tube
The outer-tube group always remains at the bottom of the hole and houses the inner-tube group during the drilling process.
Sizes:
Double tube surface | ||||
Size(surface exploration drill) | Metric 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 |
NQ HQ PQ heat treated wireline diamond core drill rods 3m 1.5m drill pipe
Jinshi wireline drill rods are made of special geological steel pipe with high strength and toughness which is processed by high-precision CNC lathe and molding tools. The drill rod thread is tested by special thread gauge, and the thread part is specially strengthened.
JS drill rod has consistent concentricity and straightness, and its precision and mechanical properties reach the international advanced level.
we have standard size: AQ BQ NQ HQ PQ, NRQ, HRQ, PRQ, NHD HHD PHD, BT NT HT PT
also have customized size per sample or drawing .
Standard
|
OD
(mm)
|
ID
(mm)
|
Wall Thickness (mm)
|
TPI
|
Pin Thread Length(mm)
|
Weight
(kg/m)
|
BWL
|
55.7
|
46.1
|
4.8
|
3.0
|
44.45
|
6.03
|
NWL
|
70.5
|
60.3
|
5.1
|
3.0
|
44.45
|
8.08
|
HWL
|
89.0
|
77.8
|
5.6
|
3.0
|
44.45
|
11.52
|
PWL
|
114.3
|
101.9
|
6.2
|
2.5
|
63.50
|
16.53
|
SWL
|
139.7
|
125.5
|
7.1
|
2.5
|
62.80
|
23.22
|