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 SIZE |
| AW, BW, N, NS-3, H, P, NW, HW, HWT |
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| USAGE |
| 1. |
Drill Rods
It is drilling equipment with Core Barrel and Bit attached at its foremost part and is maintained by the Chuck of the Drill Rig.
It’s main role is conveying the rotation and pressure generated by the drilling machine and making the drilling water reach to
the Bit, and also conveying the rapid cooling or slime. |
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Taesung's Drill Rods Specifications |
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| Item |
Length |
O.D |
I.D. |
Remarks |
| P DRILL RODS |
3000mm |
Min. 114.3 mm
Max. 114.5 mm |
Min. 101.6 mm
Max. 101.80 mm |
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| H DRILL RODS |
3000mm |
Min. 88.90 mm
Max. 89.15 mm |
Min. 77.8 mm
Max. 78.0 mm |
Pin & Box
(heat treatment) |
| N DRILL RODS |
3000mm |
Min. 69.85 mm
Max. 70.05 mm |
Min. 60.12 mm
Max. 60.33 mm |
| B DRILL RODS |
3000mm |
Min. 55.6 mm
Max. 55.8 mm |
Min. 46.0 mm
Max. 46.2 mm |
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| 2. |
Casing Pipe
Casing pipe is used to maintain the hole wall to the desired depth during the drilling,
and several casing pipes are inserted to protect the internal space of the hole when you drill
to the desired depth where the ground condition is not good (collapse layer).
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| Size |
OD (mm) |
ID (mm) |
Weight (Kg/m3) |
Threads (per inch) |
Content (L/100m) |
| RW |
36.5 |
30.2 |
8.0 |
5 |
70.9 |
| EW |
46.0 |
38.1 |
12.5 |
4 |
113.8 |
| AW |
57.1 |
48.4 |
17.0 |
4 |
184.1 |
| BW |
73.0 |
60.3 |
31.3 |
4 |
285.8 |
| NW |
88.9 |
76.2 |
38.4 |
4 |
455.7 |
| HW |
114.3 |
101.6 |
50.5 |
4 |
810.4 |
| PW |
139.7 |
127.0 |
64.3 |
3 |
1266.6 |
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| Other Specs |
• Min. Tensile Strength : 900 N/mm2
• Min. Yield Stress : 800 N/mm2
• Min. Extension : 14%
• Min. Surface Hardness : HRC 30 ~ 35
• Seamless, Cold drawing
• Roundness : 0.2 Max Standard
• Straightness : 0.8/1000mm (Standard)
• Pin & Box thread - Heat treated |
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| Features |
| Taesung's drill rods, as shown above, are superior products which meet the standards of drill rods for boring by 100%,
using the raw materials of best quality suitable for drilling. |
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