Main application
Mining
DTH hammers, tricone bits, RC and drill string for continuous operation in underground and open-pit mining.
Simultaneous casing systemRobit
Robit RoX+ Umbrella
Robit RoX+ system for umbrella drilling in tunnels.
Reference imageRobit RoX+ system for tunnel umbrellas, with R32, C38 and C45 threads.
Features
Robit RoX+ Umbrella
| MODEL | CASING Ø (MM) | CASING Ø (IN) | CASING WALL THICKNESS (MM) | CASING WALL THICKNESS (IN) | RING BIT ID (MM) | RING BIT ID (IN) | RING BIT OD (MM) | RING BIT OD (IN) | PILOT BIT Ø (MM) | PILOT BIT Ø (IN) | HAMMER / THREAD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 76,1/4 | 76,1 | 3" | 4 | 0,157 | 52 | 2,047 | 90 | 3,543 | 66 | 2,598 | R32 |
| 76,1/8 | 76,1 | 3" | 8 | 0,315 | 47 | 1,85 | 90 | 3,543 | 59 | 2,323 | R32 |
| 88,9/4 | 88,9 | 3 1/2" | 4 | 0,157 | 71 | 2,795 | 99 | 3,898 | 80 | 3,15 | C38 |
| 88,9/8 | 88,9 | 3 1/2" | 8 | 0,315 | 50,8 | 2 | 94,9 | 3,736 | 70 | 2,756 | C38 |
| 101,6/10 | 101,6 | 4" | 10 | 0,394 | 65 | 2,559 | 110 | 4,331 | 79 | 3,11 | C38 |
| 114,3/5 | 114,3 | 4 1/2" | 5 | 0,197 | 91 | 3,587 | 128 | 5,039 | 102 | 4,016 | C38 |
| 114,3/10 | 114,3 | 4 1/2" | 10 | 0,394 | 73,5 | 2,894 | 120,3 | 4,736 | 92,5 | 3,642 | C38 |
| 139,7/10 | 139,7 | 5 1/2" | 10 | 0,394 | 94 | 3,701 | 145,7 | 5,736 | 117,5 | 4,626 | C45 |
| 159,0/10 | 159 | 6 1/4" | 10 | 0,394 | 119 | 4,685 | 169 | 6,654 | 137 | 5,394 | C45 |
| 168,3/10 | 168,3 | 6 5/8" | 10 | 0,394 | 127 | 5 | 182,3 | 7,177 | 147 | 5,787 | C45 |
| 219,1/12,7 | 219,3 | 8 5/8" | 12,7 | 0,5 | 167 | 6,575 | 234 | 9,213 | 191 | 7,52 | C45 |
Applications
- Umbrella drilling in tunnels
Highlights
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.