Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.
| Payment Terms | L/C, T/T, Western Union, MoneyGram |
| Supply Ability | 50000 Piece/Pieces per Month dth drill pipe |
| Delivery Time | Shipped in 7 days after payment |
| Packaging Details | dth drill pipe are Packed with steel case |
| Outer Diameter | 76mm, 89mm, 102mm, 114mm, 127mm, 140mm, |
| Lenght | 1m, 1.5m, 3m, 4m, 5m, 6m, 7.62m, 9.144m |
| Material | Alloy steel |
| Grade | DZ40, DZ50, P110, R780 |
| Application | Borehole drilling, blast hole drilling |
| Wall thickness | 5.5-10mm |
| Brand Name | Teamwhole |
| Model Number | DTH drill pipe |
| Certification | ISO9001 |
| Place of Origin | Hunan, China (Mainland) |
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Product Specification
| Payment Terms | L/C, T/T, Western Union, MoneyGram | Supply Ability | 50000 Piece/Pieces per Month dth drill pipe |
| Delivery Time | Shipped in 7 days after payment | Packaging Details | dth drill pipe are Packed with steel case |
| Outer Diameter | 76mm, 89mm, 102mm, 114mm, 127mm, 140mm, | Lenght | 1m, 1.5m, 3m, 4m, 5m, 6m, 7.62m, 9.144m |
| Material | Alloy steel | Grade | DZ40, DZ50, P110, R780 |
| Application | Borehole drilling, blast hole drilling | Wall thickness | 5.5-10mm |
| Brand Name | Teamwhole | Model Number | DTH drill pipe |
| Certification | ISO9001 | Place of Origin | Hunan, China (Mainland) |
| High Light | well drilling rods ，water well drill rods | ||
Down The Hole Mining Drill Pipe Drill Rod Friction Welding
Product description
Down th hole drill pipes 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. Teamwhole DTH drill pipes are made of superior alloy and the both thread ends are friction welded to the seamless steel pipe.The high pressure air is delivered to DTH hammer by DTH drill pipe, simultaneously it transfers the rotation and press force to the DTH hammer.
| Outer Diameter (inch) | Outer Diameter (mm) | Wall thickness (mm) | Thread Pin/Box | Length (m) |
| 3” | 76 | 6~8.5 | API 2 3/8” reg | 1m-9m |
| 3.5” | 89 | 6.5~8.5 | API 2 3/8” reg | 1m-9m |
| 4” | 102 | 6.5~8.5 | API 3 1/2” reg | 1m-11m |
| 4.5” | 114 | 8.5~10 | API 3 1/2” reg | 1m-11m |
| 5” | 127 | 8.5~10 | API 3 1/2” reg | 1m-11m |
| 6” | 152 | 8.5~10 | API 4 1/2” reg | 1m-6m |
| 7” | 178 | 10 | API 4 1/2” reg | 1m-6m |
| 7 | 178 | 12.7 | API 4 1/2” reg | 1m-6m |
Company Details
Business Type:
Manufacturer
Year Established:
2002
Total Annual:
10Million-50Million
Employee Number:
201~300
Ecer Certification：
Active Member
Changsha Tianhe Drilling Tools and Machinery Co., Ltd., is a professional geotechnical drilling tools manufacturer since 2002. We’re located in Jinzhou New District,Ningxiang County, Changsha,Hunan province.Our main products include DTH (down-the-hole) hammers and bits with capacity of drillin... Changsha Tianhe Drilling Tools and Machinery Co., Ltd., is a professional geotechnical drilling tools manufacturer since 2002. We’re located in Jinzhou New District,Ningxiang County, Changsha,Hunan province.Our main products include DTH (down-the-hole) hammers and bits with capacity of drillin...
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