Concentric Drilling and Casing System for hard rock Overburden
Tools Overburden Drilling Systems
Overburden tools, Roschen CDC Concentric system product range M50
168.3mm
Below is a presentation of Halco systems of Overburden tools.
Roschen CDC Concentric system product range
CDC - Concentric Drilling and Casing system
Roschen casing advancing system quality can be replaced of by Halco
tubex system, atlas copco casing advancing system basis on the
quality grade, and in the after sales service.
| CDC type | Casing, OD | Casing wall | Pilot diameter | Reaming diameter | Casing shoe | Max. drill bit diameter |
| thickness | diameter |
| mm | mm | mm | mm | mm | mm |
| M40 | 139.7 | 5,6 | 127.5 | 154 | 116 | 115 |
| M50 | 168.3 | 6 | 155 | 182.3 | 142 | 140 |
| M60 | 193.7 | 6 | 180 | 212 | 167 | 165 |
| DHD340 | 139.7 | 5,6 | 127.5 | 154 | 116 | 115 |
| DHD350 | 168.3 | 6 | 155 | 182.3 | 142 | 140 |
| DHD360 | 193.7 | 6 | 180 | 212 | 167 | 165 |
| TD40 | 139.7 | 5,6 | 127.5 | 154 | 116 | 115 |
| QL50 | 168.3 | 6 | 155 | 182.3 | 142 | 140 |
| QL60 | 193.7 | 6 | 180 | 212 | 167 | 165 |
Roschen CDC System
Roschen CDC system can be used to install casings in many different
types of overburdens, and in all types of natural formations. The
CDC system drills straight holes and penetrates boulders easily.
The system is designed for use with permanent casings, which are
welded together progressively during drilling and left in the hole.
It can be used to drill and case comparatively deep holes,
depending on the application, hole inclination, and ground
conditions.
The system consists of a pilot bit and a concentric ring-bit/casing
shoe assembly. The ring bit and casing shoe are delivered as a
single unit, connected to each other via a rotary joint. These two
components, together with a DTH hammer, the drill pipes and the
casings, make up the complete system.
Roschen EDC TUBEX XL Product range
EDC - Eccentric Drilling and Casing system
| TUBEX | Casing, recom. size | Min. wall | Max. drill bit | Reaming |
| XL type | mm | thickness | diameter | diameter |
| Max. OD/Min. ID | mm | mm | mm |
| 90 | 115/102 | 5 | 90 | 123 |
| 115 | 142/128 | 5 | 115 | 152 |
| 140 | 171/157 | 5 | 140 | 187 |
| 165 | 196/183 | 5,5 | 165 | 212 |
| 180 | 219/194 | 6,3 | 180 | 232 |
| 190 | 222/205 | 6,3 | 190 | 237 |
| 240 | 273/260 | 6,3 | 240 | 306 |
| 280 | 327/305 | 7,1 | 280 | 370 |
TUBEX XL
Roschen TUBEX XL tool systems for DTH hammers are designed to
drill-and-case simultaneously through overburdens. When reaching
the bedrock or required depth, the drill string is removed easily
from the hole, leaving the casings in place.
For more information, please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
http://www.roschen.cn ; http://www.roschendrill.com
http://www.roschenmining.com ; http://www.roschendrilling.com
http://www.roschengroup.com
