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7 7/8"(200.0mm) IADC517 Soft Rock Drilling TCI Tricone Bit API Standard

7 7/8"(200.0mm) IADC517 Soft Rock Drilling TCI Tricone Bit API Standard

Summary information
7 7/8 inches TCI Tricone Bit
Affiliate classification

7 7/8"(200.0mm) IADC517 Soft Rock Drilling TCI Tricone Bit API Standard

  Tricone Bits - 7 7/8''
Products Speification              
                                                    Cone Size   7 7/8"
                                               Bearing Type   Elastomer Sealed Bearing
                                                  Tooth Type    TCI
                                          Circulation Type   Mud Fluid
                                      Thread Connection   4 1/2 Reg Pin
                                        Gauge Protection   Available
                                      Shirttail Protection   Available
Operating Parameters  
                                                 RPM (r/min)   140~60
                                                     WOB(KN)   70~200
                                                  Application Soft  to medium formation with low
compressive strength ,such as mudstone,
gypsum,salt,soft limestone, etc.

1>Elastomer sealed bearing is a type of bearing in tricone bits sealed system, the bearing is sealed by elastomer O-ring, somebody always call it as "Rubber sealed bearing".


2>IADC517G means tri-cone bits with long chisel or spoon inserts, sealed bearing with tungsten carbide inserts at heel of cones(gauge protection). Long inserts could drill soft rocks with very high penetrating speed(ROP). ROP is very important for evaluating cost performance of tricone bit. In drilling field, longer inserts/teeth could drill faster but softer, shorter teeth/inserts could drill harder but slower.


Choose the correect and suitable IADC code to reach the best cost-effective, we are pleasant to choose the right TCI tricone bits according to your geological information.



Oil/Gas Well Drilling   .Water Well Drilling   .HDD(Trenchless)   .Foundation Piling
 Our Mission:
 Lower the cost of
 Who we are:
 To extract sources of energy underground.  
 To extract the 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.
A face-to-face meeting is welcomed in below exhibitions, including OTC , Bauma Germany/    China, No-Dig Shows, etc.
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