NQ3 triple tube core barrel assembly

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US $200-800 / Sets | 1 Set/Sets (Min. Order)
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Quick Details
Place of Origin:
Hebei, China (Mainland)
Brand Name:
Model Number:
Core Barrel
Machine Type:
Drilling Tool
Alloy steel
Processing Type:
Ore Mining
1000 Set/Sets per Week
Packaging & Delivery
Packaging Details
packed with thread protectors and steel covers
Lead Time :
one week


1. available for application in standard DCDMA hole sizes ( B, N, H, P).
2. ideal for use in most drilling conditions





Product Description



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.


1 head assembly 
2 inner tube 
3 stop ring 
4 core lifter
5 core lifter case 
6 locking coulping 
7 adaptor coupling
8 landing ring
9 outer tube
10  stabilizer
11 thread protection

Q3 wireline systems consist of the same groups as the Q , but utilize a third tube called an inner-tube liner or split tube that is placed inside the inner tube.

Size:Tangshan Jinshi core barrels are available in alll standard drilling size(BQ,NQ.HQ,PQ)as well as some regional specifications.


The follow is a structure of C3 series core barrel,in which item 1,5,6,7,and 8 compose inner tube group,item 9 to item 14 compose outer tube group,item 2,3 and 4 compose split tube system.




Our Services

Jinshi will response in 8 hours to the problems caused by our products. When necessity arises inside the country, technical support will arrive in 24 hours within a 1000 kilometers radius of the company, will arrive in 48 hours for other parts of China. Due to the limitation of branch offices in foreign countries, technical support will arrive your work site in 15 days after visa is issued.