6m Regular 2 3/8" API Thread Foundation Drilling Alloy Steel DTH
Drill Pipe for DTH Hammer
DTH drill pipes play an important role in DTH drilling - regardless
of application, rock type, hole depth or drill rig. The key
features of a high quality drill pipes are durability, high
hardness, stability, accuracy.
1. High quality pipe
Hardness and wear resistance combined alloy steel, supplied by
national top level special steel manufacturer.
2. No weak links
Traditionally, the threads and the joint between the tube and the
end-pieces are vulnerable. To combat the problem, we've
friction-welded the joints for maximum strength and heat-treated
the end-pieces for optimum durability.
3. Stability and durability thread
Premium alloy steel made joints, strictly controlled heat treatment
process and standard API thread processing technology; we pay high
attention to all these ignored details to ensure a long service
life, stability and thread durability.
Product Description:
According to different application, different diameters of drill
tubes are needed, basically, smaller DTH hammers need smaller DTH
drill tubes, vice versa. Usually we are offering Rotary and DTH drill pipes, Reverse Circulation Drill Pipes, HDD
drill pipes with diameter 50mm, 60mm, 76mm, 89mm, 95mm, 102mm, 114mm, 127mm, 140mm, 159mm
and some are produced of friction welding and integral forging
technology;
Products Parameters:
Thread types: API Reg, API IF, BECO, Z, Cubex, Remet thread;
Application for:
Mining production;
Water well drilling, Geothermal Drilling;
Micropiling, Overburding drilling;
Mineral exploration;
Horizontal Direction Drilling.
Available in a variety of lengths, diameters, wall thicknesses, and
thread configurations;
Traditional Rig Application:
ATLAS COPCO: ROC L6, L8, DM30/45/50/L, T4W; PIT VIPER 235,271;
CM760, 780
: D25KS,D245S,D45KS,D55SP,D75KS,T25KW;TITON
DI100,DI200,DI300,DI310,DI405;
FURUKAWA ROCK DRILL: DCR23, DCR38;
Product Processing:
Grinding out flash- Friction Welding- Weld Ling Quench- Hard
Banding- Rasion Molding
Upsetting treatment to reduce the weight of rod while keep the
strength o the weld ( the thickness of pipe is 8mm while welds are
10 mm.
Specification of other DTH Pipes:
| DTH Rod | Diameter (mm) | Length (mm) | Thread Type |
| DTH pipe/ Roller rods | Φ42 | 1025 | Z32*8 |
| Φ51 | 1025 | Z42*10 |
| 1050 | Z42*10 |
| Φ51(friction welding) | 1250 | K49/52*3 |
| Φ60 | 1025 | K52*3 |
| 1025 | Z48*10 |
| 1250 | K52*3 |
| 2000 |
| Φ60(friction welding) | 1250 | Z42*10 |
| Φ60 | 1500 | Z48*10 |
| Φ76(wall thickness=6mm) | 1000 | API 2 3/8"REG |
| 15000 |
| 2000 |
| 3000 |
| Φ76(wall thickness=8mm) | 2000 |
| Φ76(wall thickness=6mm) | 3070 | Z65*10 |
| 3100 | API 2 3/8"REG |
| Φ76(wall thickness=8mm) | 3070 | Z65*10 |
| | 3100 | API 2 3/8"REG |
| Φ89(wall thickness=8mm) | 1500 | API 2 3/8"REG |
| 3000 |
| 4000 |
| Φ102 | 3000 | API 2 7/8"REG |
| 4000 |
| 5000 |
| Φ108 | 9000 | Z75*10 |
| Φ114(wall thickness=12mm) | 6300 | Z75*10/Z85*20 |
| 7520 |
| 6580 |
| Φ133(wall thickness=12mm) | 8500 | API 2 7/8"REG |
| 9000 |
| Φ176(wall thickness=20mm) | 9250 | API 4 1/2"REG |
| Φ219(wall thickness=25-30mm) | 8870 | API 6 5/8"REG |
| 15000 |
| Φ273(wall thickness=25-30mm) | 8870 |
| 15000 |
| Rod stabilizer | Φ219 | 1390 |
| Φ250 | 1390 |
