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| Categories | Tricone Drill Bit |
|---|---|
| Brand Name: | ROSCHEN |
| Model Number: | 500mm Custom-Made |
| Certification: | ISO |
| Place of Origin: | CHINA |
| MOQ: | 1 pcs |
| Price: | $4500~8500 |
| Supply Ability: | 1000 pcs |
| Packaging Details: | Poly wood box |
| Delivery Time: | 5~15days |
| Name: | Hole Opener |
| Type: | Pilot holes |
| Materials: | AISI 4145 fully heat treated alloy steel |
| Model: | Security Standard and Security Custom Hole Openers |
| Usage: | Rock Drilling |
| Drying Type: | Directional drilling |
| Use: | Rock bit or bull-nose pilot bits |
| Series: | Rock roller tricone bits |
| Company Info. |
| ROSCHEN GROUP |
| Verified Supplier |
| View Contact Details |
| Product List |
Hole opener
Large-diameter assembled bit is widely used in construction,
bridge, highway and railway construction. This series of bits are
suitable to various kinds of strata including shale, limestone,
cobblestone, dolomite and conglomerate.
1. Suitable for medium to medium hard formation of high Crushing
Resistanc
(hard shale,sands,etc.)
2. Bit bearing is non-sealed roller bearing.
3. Hardfacing is applied on the shirttail,and carbide inserts for
gage protection
are pressed into the head OD.
4. Cone gage surface is reinforce with carbide compacts.
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
| Specifications | |||||
| Hole Size Range in(mm) | 8.3/8-8.3/4 (213-222) | 12-12.1/4 (305-311) | 17.1/4-17.1/2 (438-445) | 22 (559) | 24.1/2-26 (622-660) |
| Minimum Pilot Hole Size in(mm) | 5.7/8 (149) | 8.1/8 (206) | 12 (305) | 13.1/4 (337) | 15.1/2 (394) |
| Cutter Sizes in(mm) | 8.3/8 (213) 8.1/2 (216) 8.5/8 (219) 8.3/4 (222) | 12-(305) 12.1/4 (311) | 17.1/4 (438) 17.1/2 (445) | 22 (559) | 24.1/2 (622) 25 (635) 26 (660) |
| Standard Fishing Neck OD in(mm) | 5.3/4-6 (146-152) | 8 (203) | 8 - 9.1/2 (203-241) | 8 - 9.1/2 (203-241) | 8 – 9.1/2 (203-241) |
| Approximate Body Weight lbs(kg) | 248 (112.5) | 540 (245) | 960 (435) | 1650 (748) | 1932 (876) |
FAQ
Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.
Q: What are your main products, and used for?
A: Our products include core bit, PDC bit, reaming shell, core
barrel, casing, drill rod, SPT equipment, Shelby sampler, drill rig
and other drilling parts.
They are used for mineral exploration, geological drilling,
geotechnical engineering and soil sampling.
Q: How about the delivery terms?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance
and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.
Q: How about discount?
A: Price is based on products and order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all
problems and questions. Besides, we accept goods return or replace
for quality problem.
Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our
products, Roschen always makes a serious inspection for all
products and raw materials in strict procedure. We have obtained
certificate of ISO9001:2000 in 2004.
For more information please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
http://www.roschen.cn ; http://www.roschendrill.com
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