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| Place of Origin | CHINA |
| Brand Name | ROSCHEN |
| Certification | ISO |
| Model Number | BQU NQU HQU PQU |
NQU UNDERGROUND WIRELINE DOUBLE TUBE CORE BARREL ASSEMBLY FOR HORIZONTAL DRILLING
Roschen offers standard NQU NWL-U core barrel for use with NQ/NRQ/NT rods. NQU core barrel is ideal for use in most underground drilling conditions and is available for application in standard DCDMA N size hole. It consists of the NQU head assembly , NQU inner tube components and NQU outer tube components.
NQU underground diamond drilling core barrel
NQU wireline core barrel
NQU double tube core barrel
NQU head assembly
NQU core barrel
NQU core barrel Standard configuration:
1-NQU Head Assembly
2-NQU Inner Tube
3-NQU Stop Ring
4-NQU Core Lifter
5-NQU Core Lifter Case
6-NQU Locking Coupling
7-NQU Adapter Coupling
8-NQU Landing Ring
9-NQU Outer Tube
10-NQU Inner Tube Stabilizer
11-NQU Thread Protector
| NQU Nonimal Parameter | mm | Inches |
| NQU Hole Diameter(approx.) | 75.8 | 2.984 |
| NQU Core Diameter(approx.) | 47.6 | 1.874 |
| NQU Core Bit Set OD(approx.) | 75.3 | 2.965 |
| NQU Core Bit Set ID(approx.) | 47.6 | 1.874 |
| NQU Reaming Shell Set OD(approx.) | 75.8 | 2.984 |
| NQU Outer Tube OD | 73 | 2.874 |
| NQU Outer Tube ID | 60.3 | 2.374 |
| NQU Inner Tube OD | 55.6 | 2.189 |
| NQU Inner Tube ID | 50 | 1.969 |
NOTE:
(1) NQU core bit and reaming shell are not included.
(2) 1.5 m/5 ft and 3 m/10 ft NQU core barrels are available.
(3) The newest MKII spearhead NQU core barrel is also available.
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