WING-type III Symmetric Overburden Drilling System
Product Description
SOLLROC Wing type overburden casing system is for sumiltaneously drilling and casing outer diameter 4" inch (114.3mm) to 26 inch (660.4mm).
Features:
The wing extend out further than casing pipe diameter to achieve reaming diameter as large as possible.
Rapid penetration and minimum drilling time
Wear-resistance and longevity.
Bit wings retract inside the casing when the hammer is pulled off bottom without reverse rotation.
| Type | Diameter in working | For casing pipe | Device OD | Hammer type | Two Wing | Three Wing | |||
| Opened OD | Closed OD | Max. OD | Min. ID | Nominal Size | |||||
| mm | mm | mm | mm | in. | mm | ||||
| 90 | 125 | 91 | 114.3 | 102.3 | 4" | 92 | DHD3.5/COP32/Mission30 | √ | |
| 115 | 152 | 114 | 141.3 | 126.6 | 5" | 115 | SD4,DHD340A, COP42, Mach44, QL40, Mission 40 | √ | |
| 140 | 185 | 140 | 165.2 | 153.2 | 6" | 141 | SD5, DHD350R, COP54, Mission 50, QL50 | √ | |
| 165 | 215 | 166 | 190.7 | 178.7 | 7" | 167 | SD6, DHD360, COP64, Mission 60, QL60, COP62 | √ | |
| 187 | 237 | 186 | 216.3 | 202.3 | 8" | 187 | SD6, DHD360, COP64, Mission 60, QL60, COP62 | √ | |
| 215 | 272 | 217 | 254 | 241 | 9" | 218 | SD8, DHD380, COP84, Mission 80, QL80 | √ | √ |
| 240 | 290 | 232 | 273.1 | 254.5 | 10“ | 240 | SD8, DHD380, COP84, Mission 80, QL80 | √ | |
| 280 | 340 | 281 | 318.5 | 301.7 | 12” | 283 | SD10, NUMA100 | √ | |
| 315 | 373 | 314 | 355.6 | 336.6 | 14“ | 316 | SD12, Numa120, Numa125 | √ | |
| 365 | 425 | 363 | 406.4 | 387.4 | 16" | 365 | SD15 | √ | |
| 410 | 478 | 412 | 457.2 | 435 | 18" | 414 | SD15 | √ | |
| 460 | 530 | 461 | 508 | 482.6 | 20" | 463 | SD15 | √ | |
| 510 | 580 | 509 | 558.8 | 533.4 | 22" | 511 | SD15 | √ | |
| 560 | 630 | 559 | 609.6 | 584.2 | 24" | 561 | SD18 | √ | |
| 600 | 685 | 600 | 660.4 | 631.8 | 26" | 603 | NUMA240 | ||