Hole Opener Foundation Pile for Directional Drilling Hdd Rock
Reamer
Hole opener
Large diameter assembly bit is widely used in construction, bridge,
highway and railway construction. This series of bits are suitable
for all kinds of formations, including shale, limestone, cobble,
dolomite and conglomerate.
1. It is suitable for medium to medium hard formation with high
crushing resistance (hard shale, sand, etc.)
2. The drill bit bearing is an unsealed roller bearing.
3. Surfacing welding is carried out on the shirt tail, and the
carbide blade used to protect the measuring tool is pressed into
the outer diameter of the head.
4. Strengthen the surface of cone gauge with carbide compacts.
1. Cutting Structure
In response to the different cutting characteristics of the blades
in different areas of the cone, the conical blade is placed in the
permanent contact area, and the wedge-shaped blade is placed in the
alternative contact area, which greatly improves the drilling
efficiency. The wear resistance of the cutting structure can be
enhanced by setting the diamond blade in the permanent contact area
of the cone of the severely worn blade. The tungsten carbide blade
is placed on the top surface of the cone to protect the cone from
abrasion.
2. Gauge Structure
With active cutting gauge protection inserts on bit body, the bit
has good gauge protection and up drill capability.
3. Bearing Structure
High precision journal bearing. The ball locked the cone. The
tapered bearing is inlaid with antifriction alloy. The wear
resistance and anti seizing property of the bearing are improved.
Compared with the tri cone bit, the outrigger bearing is larger, so
higher WOB and higher reliability can be obtained.
4. Hydraulic Design
Small angled watercourse design increased the shirttail thickness
and can effectively prevent the watercourse erosion.Optirnized
hydraulics structure improves the clearing capability and increases
ROP.
5. Product Application
It is suitable for sidetracking, deep well drilling and old well
| Machine Type | Drilling Equipment |
| Applicable Industries | Construction works , Energy & Mining |
| Use | Well Drilling |
| Application | HDD reamer |
| Usage | Hole Drilling |
| Advantage | High Performance Cost Ratio |
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 |
FAQ
1. How to order the products?
Answer: 1.Order directly!
2. Do you agree sample order?
Answer: Yes, we are welcome your sample order to testing our
quality.
3. How to control the quality?
Answer: We should be checking & testing everyone drill bit before
shipment.
4. Can we select the color of the drill bit?
Answer: Yes, we have the color of bule, golden, silvery for your
choose. If you need, we can make the drill bit color based on
yours.
