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17 1/2'' 444.5mm TCI Tungsten Carbide Insert Drill Bit Rolling Cone Bit

Price Negotiable
Min Order 1 Piece
Availability In Stock
Shipping From Hebei, China
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Model NO.:
IADC CODE
Type:
Center Drill Bit
Material:
Alloy Steel, Tungsten Carbide
Usage:
Well Drilling
Certification:
ISO
Model Number:
Steel Tooth Bit, TCI Bit
Bearing Type:
Sealed Bearing and Non-Sealed Bearing
Suitable Formation:
Soft, Medium Soft, Hard, Medium Hard, Very Hard
Color:
Blue or Red
Trademark:
HJ
Transport Package:
Wooden Case
Specification:
according requirement
Origin:
China
HS Code:
8207191
Product Description
HENGJI
BIT SPECIFICATION

Bit Size
171 /2''(444.5mm)

IADC Code
637
SeriesHR
Tooth typeTCI/tungsten carbide insert

Connection
7 5/8 API REG PIN
Bearingrubber sealed bearing

Nozzle 
three jet nozzles

Rotary Speed(rpm)
120~50

Weight on Bit(KN/MM)
0.45~1.0
Applicationwater well,oil well,HDD,exploration,etc

Formation		Soft to medium formation with low compressive strength,such as medium soft shale,medium soft limestone,medium soft sandstone,etc.
 
IADCWOB
(KN/mm)		RPM
(r/min)		Applicable Formations
114/116/1170.3~0.75180~60Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc.
124/126/1270.3~0.85180~60Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc.
134/135/136/137 0.3~0.95150~60Soft to medium formations with low compressive strength and high drillability, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc.
214/215/216/2170.35~0.95150~60Medium formations with high compress strength, such as medium soft shale, hard gypsum , medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc.
227  0.35~0.95150~50Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble,etc
Note: The upper limits of WOB and RPM in above table should not be used simultaneously.
 
IADCWOB
(KN/mm)		RPM
(r/min)		Applicable Formations
417/437/
 447/415/435		0.35~0.9150~70Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, gypsum, salt, soft limestone, etc.
517/527/5150.35~1.0140~60Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc.
537/547/535 0.45~1.0120~50Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc.
617/6150.45~1.190~50Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc
637/635  0.5~1.280~40Hard formations with high compressive strength, such as sandstone, limestone, dolomite ,hard gypsum, marble, etc.
Note: The upper limits of WOB and RPM in above table should not be used simultaneously.
Company Information
 Hejian Hengji Bit Manufacture Co.,LTD  is specialized in manufacturing high quality rock bit,especially for tricone bit,PDC bit,hole opener,single cone bit and drag bit.with advanced CNC machines and R&D team and on-time delivery. We have kept our clients ahead of schedule and under budget by providing the highest quality tools at the best possible prices .
   We ship to more than 40 different countries and serve industries such as Oil & Gas, water well , Construction,Mining,  Horizontal Directional Drilling (HDD), Geothermal and Environmental. Our experienced staff is here to assist you with everything from choosing the right bit to shipping around the globe.
    Our goal is to provide our customers with the best quality tools, accessories and service in the industry. We are supported by many years of experience, trained professionals and a full machine shop.  Reduce the cost ,Speed the drilling ,Guarantee the safety is always our aim.  We have been always insist on"Hengji bit,focusing on quality". 
 
Main products
tricone bit(mill tooth and tungsten carbide insert tricone bit)
PDC bit(matrix body and steel body PDC bit)
hole opener(HDD rock reamer,barrel reamer,etc)
drag bit(step drag bit,PDC drag bit,chevron drag bit,etc)
accessories(single cone,bit breaker,nozzle ,etc)  

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