2021 wholesale price Mining Drill Rod - Symmetric Casing Systems with Slide Blocks – TDS
2021 wholesale price Mining Drill Rod - Symmetric Casing Systems with Slide Blocks – TDS Detail:
- Application Range
 
It is recommended to drill in rock formation where contains some ovals and fractures.
- Design Principles
 
Make the casing follow easy and the equipment and operation simple
- Outstanding Advantages
 
1.The stable and reliable working performance and the less vibration of drill rig.
2.Flexible to open and close.
- Operation Procedure
 
1.when the drilling starts, the blocks slides down through the grooves on pilot bit,and reams to drive the casing shoes and tubes into the hole.
2.When finished the drilling in overburden rock formations, raise the drilling tools and the blocks will get closed through the grooves , and the drilling tools can be pulled out from the hole.
3. Next construction can be followed.
| Model | O.D of casing tube(mm) | I.D ofcasing tube(mm) | Wall thickness(mm) | Guide device max Dia.(mm) | Reamed Dia.(mm) | Max O.D of normal bit(mm) | Blocks qty | Hammer type | Weight(kg) | 
| TDS186 | 219 | 199 | 10 | 197 | 234 | 185 | 3 | COP64/DHD360/SD6/QL60/MISSION60 | 61 | 
| TDS210 | 245 | 225 | 10 | 222 | 260 | 210 | 3 | JS8/COP84/DHD380/SD8/QL80 | 88 | 
| TDS240 | 273 | 253 | 10 | 251 | 305 | 240 | 3 | JS8/COP84/DHD380/SD8/QL80 | 96.5 | 
| TDS280 | 325 | 305 | 10 | 302 | 350 | 282 | 3 | JS8/COP84/DHD380/SD8/QL80 | 115 | 
| TDS305 | 355 | 325 | 10 | 322 | 380 | 305 | 3 | DHD112/NUMA120 | 214 | 
| TDS365 | 406 | 382 | 12 | 380 | 432 | 365 | 4 | DHD112/NUMA120 | 254 | 
| TDS432 | 480 | 454.6 | 12.7 | 450 | 505 | 432 | 4 | TK14/NUMA125 | 415 | 
| TDS460 | 508 | 482.6 | 12.7 | 479 | 534 | 461 | 4 | NUMA180/TDS18 | 630 | 
| TDS510 | 560 | 534.6 | 12.7 | 530 | 590 | 510 | 4 | NUMA180/TDS18 | 730 | 
| TDS553 | 610 | 584.6 | 12.7 | 582 | 639 | 553 | 4 | NUMA180/TDS18 | 895 | 
| TDS596 | 660 | 628 | 16 | 625 | 690 | 596 | 4 | NUMA180/TDS18 | 946 | 
| TDS645 | 711 | 679 | 16 | 675 | 741 | 645 | 4 | NUMA180/TDS18 | 1010 | 
| TDS694 | 762 | 730 | 16 | 726 | 792 | 694 | 4 | TDS24/NUMA240 | 1595 | 
| TDS744 | 813 | 781 | 16 | 776 | 845 | 744 | 6 | TDS24/NUMA240 | 2436 | 
| TDS846 | 914 | 882 | 16 | 878 | 946 | 846 | 6 | TDS24/NUMA240/QL300 | 2756 | 
| TDS948 | 1016 | 964 | 16 | 980 | 1050 | 948 | 6 | TDS24/NUMA240/QL300 | 3076 | 
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