7 7/8 inch IADC837 Roller Cutters
|Cone Size||For 7 7/8" Tricone|
|Bearing Type||Elastomer Sealed Bearing|
|Grease Compensation System||Available|
Very hard formation with high compressive
strength ,such as limestone,sandstone,
The reamer mainly consists of four or more cones. Cutting Structure with premium tungsten carbide hardfacing or premium tungsten carbide insert of formulas and new techniques is utilized, and increases wear-resistance capability of reamer. The pilot is three cone bit( tricone bit ).
2)Seal and Lubrication
High performance HNBR O-ring for bearing seal and advanced grease for lubrication.
It is suitable for the large size well, mining and infrastructure applications.
4)Main Availability, ( Bit sizes and cone types can be customized as you special order)
The strength and ductility of steel give steel-bit bodies’ high resistance to impact loading. Steel bodies are considerably stronger than matrix bodies. Because of steel material capabilities, complex bit profiles and hydraulic designs are possible and relatively easy to construct on a multi-axis, computer-numerically-controlled milling machine. A beneficial feature of steel bits is that they can easily be rebuilt a number of times because worn or damaged cutters can be replaced rather easily. This is a particular advantage for operators in low-cost drilling environments.
We have advanced production equipment,excellent design and testing the quality assurance system in
our production base.All our products meet strict ISO 9001:2008
Ascribed to our excellent quality,our products have won a good reputation both home and abord.
Customers from the United States,Canada,Australia,Middle East , South Africa,Korea and Japan..
.have already established agreeable and mutualbenefit business relationship with us and highly
appreciated our professional services.
The hard formation TCI tricone bits can be used to drill hard and abrasive formations. Wear resistance tungsten carbide inserts are used in the outer rows to prevent loss of bit gauge. Maximum numbers of hemispherical shaped inserts are used in all rows to provide cutter durability and long life.