Drilling Rod Couplings /lock joint drill pipe coupling
Applicable Industries:Energy & Mining, Construction works
Material:Carbon steel
Diameter:78mm-114mm
Quality:HighQuality
DTH drill pipes are widely used in mines, water wells, geothermal, petroleum and other types of DTH rigs. High quality carbon steel ensures the close combination of friction welding process and joint.according to different application, different diameters of drill tubes are needed, basically, smaller dth hammers need smaller dth drill tubes.
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Drilling Rod Couplings /lock joint drill pipe coupling :
| Pin-Box Adapters | |||||
 | Connector model | Size A(mm) | Size B(mm) | Size C(mm) | Wrench Flat(mm) |
| 2-3/8Pin-2-3/8Box Adapter | 25 | 45 | Φ78 | 57 | |
| 2-3/8Pin-2-3/8Box Adapter | 25 | 45 | Φ89 | 70 | |
| 2-3/8Pin-2-3/8Box Adapter | 25 | 45 | Φ89 | 70 | |
| 2-3/8Pin-7-8/8Box Adapter | 25 | 45 | Φ102 | 70 | |
| 2-7/8Pin-7-8/8Box Adapter | 25 | 45 | Φ108 | 85 | |
| 3-1/2Pin-3-1/2Box Adapter | 25 | 50 | Φ114 | 95 | |
| Pin-Pin Adapters | |||||
 | 2-3/8Pin-2-3/8Pin Adapter | 21 | 45 | Φ89 | 70 |
| 2-3/8Pin-3-1/2Pin Adapter | 23 | 50 | Φ114 | 95 | |
| 3-1/8Pin-4-1/2Pin Adapter | 30 | 50 | Φ140 | 102 | |
| 4-1/8Pin-4-1/2Pin Adapter | 30 | 50 | Φ140 | 102 | |
| Box-Box Adapters | |||||
 | 2-3/8Box-2-3/8Box Adapter | 97 | 45 | Φ89 | 70 |
| 2-3/8Box-2-7/8Box Adapter | 115 | 50 | Φ102 | 85 | |
| 2-3/8Box-3-1/2Box Adapter | 102 | 50 | Φ114 | 95 | |
| 2-7/8Box-3-1/2Box Adapter | 122 | 50 | Φ114 | 95 | |
| Product Feature: |
▲DTH drill pipes are widely used in mines, water wells, geothermal, petroleum and other types of DTH rigs. |
| ▲High quality carbon steel ensures the close combination of friction welding process and joint.according to different application, different diameters of drill tubes are needed, basically, smaller dth hammers need smaller dth drill tubes, vice versa. |
| ▲If you have special requirements, please contact us. We have professional and experienced engineers who understand that some drilling conditions may require special bit configuration. |
Why Choose HFD Down the hole bits ?
In the top hammer drilling tool manufacturing, we have world-class production technology, advanced production equipment, and experienced production technical staff. We have been working closely with our customers to conduct extensive on-site tests on various types of rocks and working conditions. Based on the feedback, we continue to improve and develop in various areas such as raw materials, heat treatment, design and manufacturing processes.
In terms of product consultation and rock tool services, we can select the most suitable rock drill tools and drilling construction schemes according to the user's construction conditions, rock type, mineral conditions and drilling equipment, so as to help users improve drilling efficiency, reduce drilling costs, and achieve better comprehensive benefits and higher labour productivity.
Our Down the hole bits have a good industry reputation in mining, tunnelling, quarrying, roads or construction due to their excellent wear resistance, roughening resistance and stability. Compared with many world-class brands of drilling tools, our rock drill tools are not inferior. In some field comparison tests, the use efficiency of our many products even exceeds that of world-class brands and has been highly recognized by customers.
Service & Support
Every purchase comes with round-the-clock after-sales service, support, and training to ensure customers get maximum productivity from their drilling operations. Having a knowledgeable and technical partner, on-site or online, can make the difference between going it alone and leveraging experience and expertise. Customers can rely on our service and support, which are provided by cost-effective and professional DTH drilling tool manufacturers. We know about downhole drilling!
