Wear Resistance Steel Tooth 900mm Hole Drilling Opener
Introduction
1. Main size: general drill diameter: 311mm, 346mm, 500mm, 800mm,
900mm, etc., and various sizes can be customized.
2. Purpose: In the construction site and bridge construction, the
hole opener can expand the small well hole to large diameter.
Highway construction, railway construction, etc. The drill bit is
suitable for different complex formations, shale, limestone,
pebbles, etc.
3. Cutting structure: the hole opener always have multi-cones.Bit
cones are splited from tricone bits and welded
to bulid a big diameter bit, the pilot is attched with hole opener.
Features
1) Drill Bit Connection made according to API standard.
2) We can adjust the bit size according to your rig.
3) The best result can be obtained by using the steel-tooth bit in
the soft stratum.
Advantages
1. Cutting Structure
In response to the characteristics that inserts in different areas
on the cone have different cutting actions, conical inserts are
placed in permanent contact area and wedge inserts are placed in
alternative contact area so that the drilling efficiency is greatly
improved. Wear resistance of cutting structure is enhanced by
setting diamond inserts in the permanent contact area of the cone
where inserts are severely worn. Tungsten carbide inserts are
placed on cone top face to protect cone body from abrasive erosion.
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. Balls lock the cone.Hardface heard
bearing surface. Cone bearing inlaid with friction-reducing alloy.
Abrasion resistance and seizure resistance of the bearing are
improved. Compared with three cone bit, the leg bearing is bigger,
so it can receive higher WOB and high reliability.
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
Product parameters
| Product name | HDD hole opener |
| Usage | horizontal directional drilling |
| Application formation | medium hard with relatively higher compressive strength and hard
stringers, such as hard shale, sandstone and limestone, etc. |
| Weight | 200kg-400kg |
| MOQ | 1 |
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
Suitable for construction, water drilling, mining, horizontal
directional drilling, geothermal, environmental protection and
other fields.
Pic Show
FAQ
Q: How to order the products?
A: Order directly!
Q: How to control the quality?
A: We should be checking & testing everyone drill bit before
shipment.
Q: Do you agree sample order?
A: Yes, we are welcome your sample order to testing our quality.
Q: Can we select the color of the drill bit?
A: 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.
Q: Do you have after-sale service and warranty service?
A: Any quality or quantity problem once confirmed, we will be
compensate you the same. Any question or problem we will be reply
you within 24 hours.
