
Mining
DTH hammers, tricone bits, RC and drill string for continuous operation in underground and open-pit mining.
Simultaneous casing system
Featured application
Drilling system designed to advance and simultaneously install the casing, using a pilot bit and wings with a locking system to make drilling easier. Key applications: Water wells, foundation piles and anchoring.
Models
4
Applications
4
Línea
Simultaneous casing system
Comparison table
Super Jaw
| Product | MODEL | DIAMETER (IN) | CASING OD (MM) | CASING ID (MM) | SHOE OD (MM) | SHOE ID (MM) | MAX. GUIDE (MM) | MIN. GUIDE (MM) | EXPANDED DIAMETER (MM) | HAMMER SHANK |
|---|---|---|---|---|---|---|---|---|---|---|
| SJ8 – SJ18 | SJ8 – SJ18 | 8" – 18" | 219,1 – 457,2 | 202,74 – 438,14 | 220 – 458 | 193 – 414 | 200,74 – 434,14 | 190 – 412 | 243 – 478 | SM60-DHD36, DHD380, NUMA125 |
| SJ20 (20") | SJ20 | 20" | 508 | 488,94 | 509 | 459 | 484,94 | 455 | 530 | NUMA125 |
| SJ22 (22") | SJ22 | 22" | 558,8 | 539,74 | 559 | 512 | 535,74 | 508 | 581 | NUMA125 |
| SJ24 (24") | SJ24 | 24" | 609,6 | 590,54 | 610 | 562 | 586,56 | 558 | 632 | NUMA125 |
Application and procedure
When drilling starts, the pilot bit pushes the shoe and the casing downward.
When finished, simply lift the tool to remove the pilot bit from the hole.
Pour the concrete or move on to the next construction step.
Use conventional tools to drill to the desired depth.