Main application
Mining
DTH hammers, tricone bits, RC and drill string for continuous operation in underground and open-pit mining.
Simultaneous casing systemSM-EX
SM-EX22 (22")
SM-EX22 (22") — SM-EX, Casing Systems.
SM-EX22 (22") is part of the SM-EX line in Casing Systems. SM-EX expanding system for simultaneous casing in wells and piles.
Features
SM-EX
| 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 |
|---|---|---|---|---|---|---|---|---|---|
| SM-EX 22 | 22" | 558,8 | 539,74 | 559 | 512 | 535,74 | 508 | 581 | NUMA125 |
SM-EX
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| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SM-EX 8" – 18" | SM-EX 8 – SM-EX 18 | 8" – 18" | 219,1 – 457,2 | 202,74 – 438,14 | 220 – 458 | 193 – 414 | 200,74 – 434,14 | 190 – 412 | 243 – 478 | SM60-DHD360, DHD380, NUMA125 |
| SM-EX20 (20") | SM-EX 20 | 20" | 508 | 488,94 | 509 | 459 | 484,94 | 455 | 530 | NUMA125 |
| SM-EX22 (22") | SM-EX 22 | 22" | 558,8 | 539,74 | 559 | 512 | 535,74 | 508 | 581 | NUMA125 |
| SM-EX24 (24") | SM-EX 24 | 24" | 609,6 | 590,54 | 610 | 562 | 586,56 | 558 | 632 | NUMA125 |
Applications
- Water wells
- Micropiles
- Anchoring
- Simultaneous casing drilling
Highlights
- Range from 8" to 24" depending on the model.
- Expanding shoe and pilot bit integrated into the system.
Drilling systems (such as SM-EX, Robit, ODEX and Super Jaw) designed to advance the borehole and install the casing in a single operation. Their mechanism lets the pilot assembly expand and pull the shoe along with the casing, ensuring immediate stabilization in fractured or unstable ground.