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| After-sales Service: | Provided |
| Warranty: | 3 Months |
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Bq Nq Hq Pq Aq Hot Selling Wireline Core Wireline Diamond Core Barrel Overshot Assembly

>> Introduction
A wireline coring system includes core barrel assembly and overshot assembly.The core barrel assembly is composed of inner tube group and outer tube group.Inner & outer tubes have standard length of 1.5 meters and 3 meters.
The head assembly provides: latching and pivoting spearpoint mechanisms to allow insertion and retrieval of the inner tube assembly, a bearing assembly to allow the inner tube to remain stationary and avoid sample damage while drilling, fluid pressure operating indications and fluid control valves.
All head assemblies incorporate a shut off valve assembly which provides a fluid pressure signal to the drill operator when the valve members are compressed, indicating a full or blocked inner tube.
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.
| 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 |
>> BQ Head Assembly structure diagram
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>> Package & Shipment
>> Our Service

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>> Pre-sale service Acting as a good adviser, our well-trained sales groups and professional technical team propose most rational solutions for our valued client as per practical project requirement. >> Select suitable model & matched equipment. >> Strong technical support. Reply clients' questions within 24 hours. |
>> Service During Sales We have responsible team from raw material to finished products, and guarantee 100% pass rate. >> Design and manufacture products basis of client's special equirement >> Inspect each machine & matched accessories strictly before delivery >> Timely inform client of production progress. |
>> After Sales Service We're always with you in after-sale service. >> We can arrange related after-sales representatives for debugging and training at worksite when starting up. >> E-mail, call or door-to-door service in later using.
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>> Certification

>> Related Products
