Factory Direct Sale High quality/High cost performance Hard Drilling Bits Cones Rotary Tools Rock Drill Head Roller Cone Bit

Min.Order: 1
Product origin: Cangzhou, Hebei, China
Infringement complaint: complaintComplaint
US$ 220 ~ 400

Description
Product Description

8 1/2  IADC637 Roller Cones for Piling/Drum

 
Basial Specification

 

IADC Code

117,127,126,217

417,437,517,537

617,627,637,737

Bit Size

7 1/2'',8 1/2''

9 7/8'',12 1/4''

Tooth Typewide teeth,chisel insert
Bit Weight18kg
Meterialtungsten carbide insert,inlaid friction-reducing alloy
Bearing

Metal sealed bearing

Rubber sealed bearing

Lubrication and seal Adopt advanced grease 
Pressure control systemThe advanced compensator
Thrust facesHardfaced with wear resistant alloy
NozzlesThree nozles,Center nozzle can be customized
Gauge protectionOn the Shirttail:More carbide inserts increase gauge holding capability and bearing life
 
Recommended Drilling Parameters
IADCWOB(kn/mm)RPM(r/min)Formations
1170.30-0.753180-60very soft formation with low compressive strenght and high drillability,such as caly,mudstone,chalk,etc.
1270.30-0.85180-60soft formation with low compressive strength and high drillability,such as mudstone,gypsum,soft limestone,etc.
2170.35-0.95150-60soft to medium hard formations with high compressive strength,such as medium soft shale,sandstone,limestone,etc.
4370.35-0.9240-70soft formation with low compressive strenght and high drillability,such as caly,mudstone,chalk,soft limestone,etc.
5170.35-1.0140-60medium soft formation with low compressive strength and high drillability,such as mudstone,sandstone,shale,etc.
5370.45-1.0120-50medium soft to medium hard formation with low compressive strength,such as medium shale,sandstone,medium limestone,etc.
6170.45-1.190-50medium hard to hard formation witj high compressive strength,such as hard shale,limestone,dolomite,etc.
6370.5-1.280-40hard to very hard formation with high compressive strength,such as hard limestone,dolomite,marble,etc.
NOTE the upper limits of WOB and RPM in above table should not be used simultaneously
 


Countries that our company have already exported:United States, Australia, Costa Rica, Guatemala, Azerbaijan, Congo, Myanmar, Peru, Singapore, Oman, Indonesia, Philippines, India, Switzerland, Ukraine, Turkey, Bolivia, Romania, Kenya, Vietnam, South Africa, Kuwait, Mozambique, Ecuador, France.




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FAQ
1. How to get an exact quotation?

Answer: Please send us detailed information as below:
-Tricone bits(Diameter, IADC code)
-PDC bits(Matrix or Steel body, blades quantity, cutter size, etc)
-Hole opener(Diameter, size of pilot hole, hardness of rocks, thread connection of your drill pipe, etc.)
-Roller cutters(Diameter of cones, model number, etc.)

A simple way is sending us photos .
Besides above, if possible please provide more information as below:
Drilling depth in vertical well drilling, Drilling length in HDD, hardness of rocks, Capacity of drill rigs, application(oil/gas well drilling, or water well drilling, or HDD, or foundation).
Incoterm: FOB or CIF or CFR, by plane or ship, port of destination/discharge.
The more information provided, the more exact quotation will be offered.

2. About lead time,payment terms, delivery ?
Answer: We always have regular models available in stock, prompt delivery is one of our advantages. Mass production depends on quantity of order.
We accept all regular payment terms including L/C, T/T, etc.
We are near from Beijing airport and Tianjin(Xingang) seaport, transportation from our factory to Beijing or Tianjin only takes one day, fast and very economical inland charges.
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