Large Diameter Directional Rotary Tricone Rock Drill Bit
Introduction
300mm tapered roller reamer tapered roller reamer is a commonly
used drilling tool in rock excavation. The tapered roller reamer
produced by our company is suitable for various trenchless drilling
rigs and can be used for the expansion of various rocks. The
specification range is Φ260-1800mm.
Features
Cutting structure
The reamer is mainly composed of four or more cones. The use of
high-quality tungsten carbide hard surface or high-quality tungsten
carbide blade formulations and new cutting structures can improve
the wear resistance of the reamer. The pilot is three cone drill
bits.
Sealing and lubrication
High-performance HNBR O-ring, used for bearing seal, high-grade
grease, used for lubrication.
Product parameters
| Product name | Cones Hole Opener |
| Manufacturing Process | Forging |
| Quality | Reliable |
| Service life | Long |
| Characteristics | Not easily damaged |
| Surface Treatment | Welding |
| Material | High quality alloy steel |
| Disassembly, repair | Convenient |
| Failure rate | Low |
| Color | Request |
Reamer Size | Cone size and # of Cones | Threads |
| Cone size | #of Cones | Cone size | # of Cones |
| 10“ | 6 1/2” | 3 | | | NC23 NC26(2 3/8IF) D50 D80 NC31(2 7/8IF) NC38(3 1/2IF) |
| 12“ | 8 1/2” | 3 | | |
| 16“ |
8 1/2”or 9 1/2” | 4 | | | For 8 1/2”-9 1/2” Cone: NC23 NC26(2 3/8”IF) D50 D80 NC31(2 7/8”IF) NC38(3 1/2”IF)
For 12 1/4”-13 5/8” Cone: 4”IF 4 1/2IF 5 1/2FH 6 5/8FH |
| 18”-20“ | 5 | 12 1/4” | 4 |
| 22”-24“ | 6 |
12 1/4” or 13 5/8” | 5 |
| 28”-30” | 7 | 6 |
| 32”-34” | 8 | 7 |
| 36“-38” | 9 | 8 |
| 40“-42” | 10 | 9 |
| 44“-46” | 11 | 10 |
| 48”-50” | 12-13 | 11 |
Used in
It is suitable for large-scale wells, mining, soft rock with low
compressive strength and high drillability, such as shale, clay,
salt formation and infrastructure applications.
Advantages
Best price and high quality
Bearing types: 1. Sealed bearings and unsealed bearings. 2. Metal
sealed journal bearings. 3. Rubber sealed journal bearings
Cutting structure: all surfaces of the rear cone and teeth are
hardened, improving the shape of the steel teeth and welding
materials, showing High tooth
Application structure: low compressive strength and high
drillability softness, such as shale, clay, salt layer, etc.
All our activities have obtained ISO 9001:2008 and API
certification for products and services. At the same time, mature
production technology can ensure that the quality meets
international requirements.
Pic Show
FAQ:
1. How to order the products?
A: Please send the inquiry with detail item description or with
Model number.
2. How about the common packing?
A: If there is no special packing demand, we will take it as our
normal packing. First in small carton, and then put in the bigger
carton together to make sure goods completed.
3. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy
international request.
4. How to check the product are the exact one you want?
A: If possible, please attach one reference picture to avoid any
misunderstanding or any links from our website for a better
understanding.
5. How to control quality?
A: We have our own experienced QC team,there will be strict
inspection and testing for each order before shipping out.
6. Fast delivery time:
A: Usually it takes 25 days for production.only 3 or 5 days if we
have stock of your request size.
7. Competitive price:
A: Our factory can supply you the lowest price due to direct sale
to customers without distributor!
