Email: sales@prodrill.com.cn
Tel:0086-18959243380
Addr: Room 805 C1 Wanda Plaza, No.5 Jinzhong Road, Huli District, Xiamen, China
DTH Drill Pipe O.D.140mm (No Flat) for mining
- Outer Diameter : 140mm
- Length:4518mm
- Wall Thickness: 9.5mm
- Thread Pin:4-1/2REG API
- Process:Upsetting treatment to reduce the weight of rod while keep the strength on the weld; Auto changed rod
Rock drilling tools manufacturer Prodrill, DTH Drill Pipes
| Dia.(mm) | Length(mm) | Wall thickness(mm) | Thread Type | Thread Connect length | Rod Material | Thread Connect Material |
| 140 | 4518 | 9.5 | 4-1/2REG PIN | G400*M300 | G105 | 35Crmo |
DTH drill tubes are used for connecting DTH hammer and DTH button bits rock drill bits, they are made from seamless tubes. Tubes play a significant role in all DTH drilling, regardless of application, rock type, hole depth or drill rig. The key features of a high quality DTH tube are durability, accuracy and manageability.
ALL DTH drill tubes are friction welded, and usually the threads are standard API connections, like 2 3/8" API REG thread, 3 1/2" API REG thread or API IF thread, etc. According to customers request, from 1000mm to 5000mm length of tubes, O.D we can offer 50mm, 60mm, 76mm, 89mm,102mm,114mm,140mm.
Friction welded technology
Products feathers:
1:Nitriding on the thread of rod joint to improve the hardness of thread surface and increase the wear resistance of thread.
2:Using G105 as the material of rod body to improve the wear resistance and the strength, 35CrMo materials for thread connect.
3:Adopts the upsetting treatment to reduce the weight of rod while keep the strength of the welds.
Upsetting treatment technology
DTH drill pipe packaged in ware house for delivery.
Mr. Simon Hu, CEO of ProDrill, visit clients in Norway, StangerLand is one of largest construct contractor company in Norway.
