slide block casing system concentric system symmetric system
Use: drilling water wells
Processing Type:Forging
Advantage：Easy to lock and unlock
Supply Ability: 300 Piece/Pieces per Month
The stable and reliable working performance and the less vibration of drill rig. Flexible to open and close.
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zdieľam:
slide block casing system concentric system symmetric system :
For more specifications, please contact us and accept the customized size;
| Model | Casing O.D | Maximum OD of Center Bit | Casing Shoe I.D | Maximum O.D of Reaming | Hammer Type | |
| 146 | ￠146 | ￠123 | ￠115 | ￠156 | 4 |
| 168 | ￠168 | ￠146 | ￠140 | ￠185 | 5 | |
| 178 | ￠178 | ￠156 | ￠150 | ￠193 | 5 | |
| 183 | ￠183 | ￠160 | ￠154 | ￠193 | 5 | |
| 194 | ￠194 | ￠178 | ￠166 | ￠211 | 6 | |
219 | ￠219 | ￠203 | ￠193 | ￠237 | 6-7 | |
| 245 | ￠245 | ￠220 | ￠210 | ￠260 | 6-8 | |
| 273 | ￠273 | ￠251 | ￠241 | ￠308 | 8 | |
| 325 | ￠325 | ￠298 | ￠281 | ￠378 | 8-10 | |
| 377 | ￠377 | ￠350 | ￠335 | ￠430 | 10-12 | |
| 406 | ￠406 | ￠380 | ￠363 | ￠426 | 12 | |
| 560 | ￠560 | ￠530 | ￠511 | ￠590 | 18 | |
| 610 | ￠610 | ￠582 | ￠556 | ￠640 | 18 |
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!
