Back Reamers for HDD Operation
High quality alloy steel is applied in back reamer manufacturing. The reamer body is heat treated. Integral mandrel and special designed wear resistant hard alloy cutter provide faster footage. An isolation cavity is designed in side the reamer which makes the reamer ligher under the buoyancy action avoiding the pear shape hole. Different length of straight bucket is desiged as per the different formation condtion to get a better bore hole. OEM products available as per the customers' detailed requirements.
Back Reamer Size Available | Thread Type and Mandrel Size Available | ||||||||
NC23 | D50 | NC26 | D80 | NC31 | NC38 | NC46 | NC50 | 5-1/2"FH | |
200mm | ¢90 | ¢90 | ¢90 | / | / | / | / | / | / |
250mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | / | / | / | / |
300mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | / | / | / |
350mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | / | / | / |
400mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | ¢168 | ¢178 | / |
450mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | ¢168 | ¢178 | ¢195 |
500mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | ¢168 | ¢178 | ¢195 |
550mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | ¢168 | ¢178 | ¢195 |
600mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | ¢168 | ¢178 | ¢195 |
650mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | ¢168 | ¢178 | ¢195 |
700mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | ¢168 | ¢178 | ¢195 |
750mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | ¢168 | ¢178 | ¢195 |
800mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | ¢168 | ¢178 | ¢195 |
850mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | ¢168 | ¢178 | ¢195 |
900mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | ¢168 | ¢178 | ¢195 |
950mm | ¢90 | ¢90 | ¢90 | ¢108 | ¢108 | ¢128 | ¢168 | ¢178 | ¢195 |
1000mm | ¢90 | ¢90 | ¢90 | ¢118 | ¢118 | ¢128 | ¢168 | ¢178 | ¢195 |
1050mm | ¢90 | ¢90 | ¢90 | ¢118 | ¢118 | ¢128 | ¢168 | ¢178 | ¢195 |
1100mm | ¢90 | ¢90 | ¢90 | ¢118 | ¢118 | ¢128 | ¢168 | ¢178 | ¢195 |
1150mm | ¢90 | ¢90 | ¢90 | ¢118 | ¢118 | ¢128 | ¢168 | ¢178 | ¢195 |
Reference Types of Reamers Available