Raise boring drilling tools
RR890 pilot bit
- Max cutter load
- 27 ton
- Max cutter RPM
- 85
- Diameter
- 229 - 406 mm / 9 - 16"
- Bit weight
- 45 - 212 kg / 100 - 467 lbs
- Max bit load
- 29 665 - 52 160 kg / 65 400 - 115 000 lbs
New RR890 raise boring pilot bit, thoroughly engineered for predictability and for giving your raise boring operations a competitive edge. With advanced and reliable design, it significantly extends service life, allowing for more drilling meters and reduced downtime.
Features
-
Optimized design
The advanced and cutting-edge technology behind the RR890 pilot bit withstands higher loads and temperatures, enables more even rock breaking and reduces wear.
-
Longer service life
Equipped with Charger® dual seal bearing, PowerCarbide® SH75 and full leg protection, the RR890 offers far longer service life of both the bearing and the inserts, and thereby increases your overall drilling distance.
-
Reduced downtime
Say goodbye to frequent tripping, unexpected interruptions for bit replacements, and potential safety hazards for operators associated with unnecessary manual handling.
Product specifications
- Max cutter load
- 27 ton
- Max cutter RPM
- 85
- For rock formations
- Soft to very hard
- Serial number recognition
- V
- Bit type
- PX
- Diameter
- 229 - 406 mm / 9 - 16"
- Bit weight
- 45 - 212 kg / 100 - 467 lbs
- Max bit load
- 29 665 - 52 160 kg / 65 400 - 115 000 lbs
- API thread
- 4 1/2 - 7 5/8"
*For more specific technical details, please contact a Rock Tools Sales Representative
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