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251mm Roller Cone Bit Replaceable Block For Hard Rocks Drilling HDD Rock Reamers

251mm Roller Cone Bit Replaceable Block For Hard Rocks Drilling HDD Rock Reamers

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API Certified factory of Tricone Bits and PDC bits
API is American Petroleum Institute, it is Authoritative in the world.
All products are produced in lines of API specifications.








Products Speification
Size  16"


Cutter Type Elastomer sealed bearing
Grease Lubrication Available
Grease Compensation System Available
Inserts Shape Conical
Operating Parameters
Application Hard formations for high compressive
strength,such as sandstone,hard shale,
dolomite,hard gypsum,chert, granite,etc.    


Traditional HDD rock reamers adopts Thirds ( 1/3 ) of Tri-cone Bits to be rock drilling cutters, factories weld legs of Tricone Thirds on body of hole openers.


The Tri-cone Thirds can not be replaced easily after worn out, so drillers have to buy rock reamers to continue projects. Sometimes, used rock reamers are taken to workshop, welding new Tricone Thirds after cut old ones, this cutting&welding procedures always damage the body of rock reamers.


We produce by the customers that the replaceable block Leg roller cone bits are combined with holder, a pair of fixed pins. The holders are welding on body, the legs are fixed by pins and also welded into holder. After roller cone bits worn out, drillers or workshop could remove old legs from holders easily without damage body of rock reamer.


This replaceable block leg roller cone bits are designed and produced in our factory, we are pleased to be customized (OEM) for horizontal directional drilling tools distributors or factories.




Regular Models

8 1/2"(215.9mm) IADC537G 8 1/2"(215.9mm) IADC637G 12 1/4"(311.1mm) IADC537G
6"(152.4mm) PDC Bit 12 1/4"(311.1mm) PDC Bit Bi Center Bit
24" Hole Opener 36" Hole Opener 44" Hole Opener
14" PDC Reamer 18" PDC Reamer HDD PDC Reamer
Tricone Bit Thirds Block Roller Bits Block Roller Bits
Roller Cone Bits for Piling Replaceable Roller Cone Bits Core Barrel



Oil/Gas Well Drilling-Water Well Drilling-HDD(Trenchless)-Foundation Piling

TCI Roller


Our Mission:
Lower the cost of Drilling-Per-Meter.

Who we are:
To exploit energy resources underground.
To exploit water underground.
To install pipelines underground with No-Dig.
To pile foundation for constructions.
We are one of the people who makes above easier.
Let’s work together and enjoy this job.


Related Catagories

TCI Roller TCI Roller TCI Roller TCI Roller
PDC Bits Hole Opener  Roller Cones (Thirds) Piling Roller Cones


TCI Roller


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