DTH drill pipes play a significant role in all DTH drilling, regardless type of rock, hole depth or drill rig.
The key features of a high quality DTH tube are durability, accuracy and manageability.
Features :
1. Pipe body : cold draw seamless pipe . so the pipe have the accurate size , good centralizer.
2. Thread connector :Heat and Nitrogen treatment , so the pipe is more durable and easier to load and unload .
3.Friction welding .
Standard DTH drill pipe:
Diameter: 76mm, 89mm, 102mm, 114mm, 127mm, 140mm;
Length: 1000mm, 1500mm, 2000mm, 3000mm, 5000mm, 6000mm;
Thread: 2 3/8” API REG, 2 7/8” API REG, 3 1/2” API REG, 4 1/2” API REG,
2 3/8 API IF, 3 1/2 API IF
Product Specification
NO
| Drill Rod Diameter
| Length
| Thickness
| Thread
| Trigger Slot
|
inch
| mm
| mm
| mm
|
| mm
|
1
| 3
| 76
| 1000-9000
| 5.00- 8.00
| API 2 3/8" Reg
| 57/64.5
|
2
| 3 1/2
| 89
| 1000-12000
| 6.00- 8.00
| API 2 3/8" Reg
| 70/64
|
3
| 4
| 102
| 1000-12000
| 8.00- 10.00
| API 2 7/8" Reg
| 76/89
|
4
| 4 1/2
| 114
| 1500-12000
| 6.00-20.00
| API 3 1/2" Reg
| 89/95
|
5
| 5
| 127
| 1500-12000
| 10.00-20.00
| API 3 1/2" Reg
| 89
|
6
| 5 1/2
| 140
| 1500-12000
| 10.00-25.4
| API 2 3/8" Reg
or 4"FH
| 114
|
7
| 6
| 152
| 3000-12000
| 12.00-25.4
| API 2 3/8" Reg
or 4"IF
| 127
|
