Product DescriptionHENGJI BIT SPECIFICATIONBit Size7''IADC
Code637SeriesHRTooth typeTCI/tungsten carbide insertConnection4 1/2
API REG PINBearingrubber sealed bearingNozzle three jet
nozzlesRotary Speed(rpm)80~40Weight on
Bit(KN/MM)0.5~1.2Applicationwater well,oil
well,HDD,exploration,etcFormationHard formations with high
compressive strength, such as sandstone, limestone, dolomite ,hard
gypsum, marble, etc. Detailed PhotosJournal bearing.
Hardfaced head bearing surface.Inne hole of ocne is
silve-plated.The load capacity and seizure resistance of the
bearing is greatly improved.O ring seal is mode of more wear
resistant and high saturated buna-N with the increased seal section
and precisely designed scaling flange in the cone sealing ares has
increased the reliability of the seal.All rubber compensator is
used which can limit pressure differential and prevent drilling
fluid from entering the lubrication system and thi provides the
bearing system with good assurance of lubrication.High weat
resistance and excellent cutting ability pf the insert bit are
given full play bu using carbide compacts of high strength and high
toughness in comnination with optimized compact numbers and rows,
the exposure height and special shaped compacts. For steel tooth
tricone, the tooth surface is hard taced with new type of wear
resistant material and thus has extended working life of the
cutting structure while still maintaining high ROP.
Product Parameters IADCWOB(KN/mm)RPM(r/min)Applicable
Formations417/437/ 447/415/4350.35~0.9150~70Very 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.
etc637/635 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. Packaging &
ShippingPackaging Wood BoxFumigation Tray if
necessaryOther special package can be appliedaccording to
customer's need Delivery Prepared to deliver
within 1 week, if in stockDepends on order quantity, when out of
stockTransportation:By sea or air Company
Profile Hejian Hengji Bit Manufacture Co.,LTD is
specialized in manufacturing high quality rock bit since
2001,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".
Certifications Our Advantages--The first-class engineers of
tricone bits and PDC bits--Advanced
technology and Equipment, International standard.--R&D
center for rock drilling tools, high precision CNC
machines, SGS&ISO Certified.--10+ Years
& 40+ Countries service experience.--Optimized
solutions for various of requirement. FAQFAQ1. Is your company
a distributor or a manufacturer?A: Yes,We are a a
professional factory of rock
drilling bits in China. 2. How
about your products?A : All our activities are accredited to
ISO 9001:2008, both in products and services, at the same time,
mature production technology ensuring the quality satisfy
international request.We have many high quality
prducts (https://hb-bits.en.made-in-china.com/) . 3.what
is the Packaging & Delivery? A:We used high quality
export carton or standard export woodern case 4.what is
the time about the delivery? A: repared to deliver
within 1 week, if in stock.Depends on order quantity, when out of
stock,7-30daysTransportation:By sea or air 5. How to order the
products?A: Send the inquiry with detail item description or with
Model number. If there is no packing demand we take it as sea-way
packing. If possible please attach one reference picture to avoid
any misunderstanding or any links from our websi
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