Wireline Drill Rods, NQ Drill Pipe, 3 meters length
Wireline Drill Rod
Exploration diamond drilling differs from other geological
drilling, which utilizes an annular diamond drill bit attached to
the end of hollow drill rods to cut a cylindrical core of solid
rock for examination on the surface. The core does not drop out of
the inside of the core barrel when lifted because either a split
ring core lifter or basket retainer allow the core to move into,
but not back out of the tube. Drilling of 1200 to 1800 metres is
common and at these depths, ground is mainly hard rock, so diamond
drill rigs need to drill slowly to lengthen the life of drill bits
and rods, this drilling method cost are very expensive.
Description of Wireline Drill Rod:
This wireline drill rod is the equipment that connects the drilling
tools and drilling bits, and it is mainly used to transmit power.
It mainly consists of a tubing body and two thread ends.
All rods are designed to be compatible with other rods manufactured
to DCDMA
Drill Rod Size Available:
"Q" Series: B, N, H, and P.
"WJ" Design: AWJ, BWJ, NWJ, KWJ, HWJ
"W" Design: RW, EW, AW, BW, NW, HW
Metric Series: 42, 50, 60, 70, 90
| Size | Outer Diameter (mm) | Inner Diameter(mm) |
| AQ | 44.7 | 37.3 |
| BQ | 55.7 | 46.1 |
| NQ | 70.0 | 60.2 |
| HQ | 89.0 | 78.0 |
| PQ(PHD) | 114.5 | 101.5 |
| AW/AWJ/AWY | 43.7 | 30.7 |
| BW/BWJ/BWY | 54.0 | 38.0 |
| NW/NWY | 66.8 | 51.0 |
| HW | 89.0 | 71.0 |
| 42mm | 42.0 | 30.0 |
| 50mm | 50.0 | 37.0 |
| 60mm | 60.0 | 48.0 |
| 70mm | 73.0 | 54.6 |
| 90mm | 89.0 | 69.0 |
| S75 | 71.0 | 61.0 |
Raw materials:
We only choose the best steel tubes in the market to manufacture
our rods and pipes. Spot check will be conducted after the steel
tubes delivered to company. We will make sure the compositions and
specifications match the inspection report form the suppliers.
Heat treatment control:
Heat treatment will greatly improve the material strength and
increase the thread wear life of the rods and casings. We conduct
either tru-wall or both ends heat treatment to the tube body. After
heat treatment, strength, hardness, straightness and concentricity
of the treated tubes will be tested in our lab.
For more information please contact:
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
