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 Resistance
2.Bit bearing is non-sealed roller bearing.
3.Hardfacing is applied on the shirttail,and carbide inserts for gauge protection
are pressed into the head OD.
4.Cone gauge surface is reinforce with carbide compacts.
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.
High precision journal bearing. Balls lock the cone.Hardfacing 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.
Small angled watercourse design increased the shirttail thickness and can effectively prevent the watercourse erosion.Optimized hydraulics structure improves the clearing capability and increases ROP.
5. Product Application
It is suitable for sidetracking, deep well drilling and old well
Great special iron bit packaging, equipped with high-quality shackle device, convenient for the extraction and installation of the bit; The special suspension design can better guarantee the safety of PDC bit crown composite during transportation.
Excellent equipment, military quality
Adopt Japan Mazak, Germany DMG high - precision processing and testing procedures to create perfect product quality.
The world's top suppliers for product quality protection escort
20 Top designers & 100 senior technicians & 50 sales and service team to create a perfect customer experience
Main parameters of CNC
Main parameters of DMG
Production cycle: 5-30 days(PDC), 10-60 days(roller cone bit)
Major market: North America,Middle east area,Africa,Europe
Package: Iron or Wooden box Annual output: 10000 pcs
1. Are you trading company or manufacturer ?
We are manufacturer.
2. Whether accept customized according to customers' requirements ?
Yes, We accept customized, no matter what size and type ,and MOQ is 1 piece .
3. About lead time and shipping time?
The lead time depend on quantity of order. Usually it will takes 3-5days shipping to Tianjin Port or Beijing Airport,China .Even the small order or urgent order we can send you by air after received your agreement. According the distance from china to your port, usually from China to European about 25-30 days. To West of American 20-25 days.
4. It is produced according to the standard?
Yes. All our activities are accredited to ISO 9001:2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request,we had strictly inspection in the production. Exported to the Middle East, Europe, North America, South America, Australia and other countries and regions.
5. Can I expect a quality product?
Yes. All our activities are accredited to ISO 9001:2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.
6. How do you guarantee your quality?
We select the advanced production technology and equipment, strictly control the whole production process,and we inspected the finished drill bits,we can also make several design changes according to the customer's feedback, and finally ensure the customer's excellent drilling effect.