Double Tube Tw Series Mining Drilling Tools Core Barrel For Surface Wireline Borehole
Double Tube Mining Drilling Tools TW Series Core Barrel For Surface Wireline Borehole Drilling
>> Introduction
Overshot is a necessary device in wireline drilling. It's dropped on a cable and directly couples onto and lift up the inner tube assembly, eliminating the need to couple and uncouple the rod string each time the core is retrieved.
Ezy Lock Overshot is a modified product based on compact overshot. It protects against accidental release of the core barrel. This is ideal for suface application when hoisting above ground. TW series overhshot are available in BTW,NTW and HTW size.
>> HTW Overshot Assembly structure diagram
| ID# | Item | Decription | Unit | Weight(Kgs) |
| 1-25 | Overshot | DLQ-HTW | Set | 13.70 |
| 1 | Eye bolt | D-NQ-XZ | Pc | 0.10 |
| 2 | Cable swivel collar | D-NQ-ZT | Pc | 0.15 |
| 3 | Inner ring | D-NQ-ZCT | Pc | 0.01 |
| 4 | Bearing | ZQ-51102 | Pc | 0.02 |
| 5 | Plain washer | PDQ-12 | Pc | 0.01 |
| 6 | Lock nut | ZSLM-M12 | Pc | 0.05 |
| 7 | Cable swivel body | D-NQ-ZNQ | Pc | 2.46 |
| 8 | Crease Fitting | ZYZ-M6*1 | Pc | 0.01 |
| 9 | Jar tube | D-NQ-LJT | Pc | 2.80 |
| 10 | Locking sleeve | D-NQ-TKG | Pc | 2.30 |
| 11 | Jar bar | D-NQ-LG | Pc | 1.00 |
| 12 | Stover lock nut | D-NQ-TJLM | Pc | 0.06 |
| 13 | Adjusting washer | D-NQ-TZDP | Group | 0.02 |
| 14 | Overshot cap | D-NQ-XYG | Pc | 0.05 |
| 15 | Overshot Spring | D-NQ-YSTH | Pc | 0.03 |
| 16 | Overshot Sleeve | D-NQ-SJT | Pc | 0.25 |
| 17 | Overshot Head | D-NQ-LGJ | Pc | 2.50 |
| 18 | Set screw | JDLD-M10*6 | Pc | 0.01 |
| 19 | Ball(2) | GQ-8.7 | Group | 0.02 |
| 20 | Lifting dog spring(2) | D-NQ-LGTH | Group | 0.01 |
| 21 | Guiding sleeve | D-NQ-DXT | Pc | 1.10 |
| 22 | Round pin | D-NQ-YZX | Pc | 0.08 |
| 23 | Spring pin | TXX-6*45 | Pc | 0.01 |
| 24 | Lifting dog(2) | D-NQ-DLG | Pc | 0.60 |
| 25 | Stop hppk and pin | D-NQ-GDXG | Pc | 0.02 |
| 25A | Stop hook | D-NQ-DLG | Pc | 0.01 |
| 25B | Stop pin | D-NQ-GDXG | Pc | 0.01 |
>> Package & Shipment
>> About Us
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JCDRILL provide users high quality Mining & Drilling solutions,we always focus on the strategic conception of "Survival by quality, Development by credit''.
We have specilized in research, development and produce of rock blasting drilling rig, water well drilling rig, diamond core drilling rig, anchor drilling rig, and relative accessories & drilling services. constantly provide professional drilling solutions for all customers with our advanced technology, excellent equipment, strict testing means and good service network, which establish our brand "JCDRILL" a good image of market, now,we products account for 50% of domestic market and have been export to more than 40 countries, and we awarded ISO9001: 2000 in November, 2002.
With excellent technology and solid market service capabilities, we have both a sound marketing system and excellent service support system, which help us win confidence of customers both at home and abroad,we can provide drilling rig users with high quality professional air compressor solution and relative after-sales service also.
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