PDC hole openers / HDD hole opener/Rock reamer

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Product
PDC hole openers / HDD hole opener/Rock reamer
Posting date : Aug 28, 2018
Membership
Free Member Scince Aug 28, 2018
FOB Price
3500
Min. Order Quantity
1
Supply Abillity
in stock
Port
tianjin
Payment Terms
LC
Package
standard
Keyword :
Category
Contact
Abby Hu
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Product Detail
Company Info
 
Quick Detail
Place of Origin
China [CN]
Brand Name
Hebei Crossing Drill Bit Manufacture Co Ltd
Model Number
48
HS-CODE
8437-80
Package & Delivery Lead Time
Package
standard
Detailed Description
20inch PDC hole opener,PDC Reamer bit,thread: 4 1/2" reg pin x box ,blades No.:6pcs,Cutter:1613mm ,Exported to USA for horizontal directionl drilling,all sizes available,Hole openerLarge-diameter assembled bit is widely used in construction, bridge, highway and railway construction. This series of bits are suitable to various kinds of strata including shale, limestone, cobblestone, dolomite and conglomerate.1.Suitable for medium to medium hard formation of high Crushing Resistanc(hard shale,sands,etc.)    2.Bit bearing is non-sealed roller bearing.3.Hardfacing is applied on the shirttail,and carbide inserts for gage protectionare pressed into the head OD.4.Cone gage surface is reinforce with carbide compacts.  1.Cutting StructureIn response to the characteristics that inserts in different areas on the cone have different cutting actions, conical inserts are placed in permanent contact area and wedge inserts are placed in alternative contact area so that the drilling efficiency is greatly improved. Wear resistance of cutting structure is enhanced by setting diamond inserts in the permanent contact area of the cone where inserts are severely worn. Tungsten carbide inserts are placed on cone top face to protect cone body from abrasive erosion.2. Gauge StructureWith active cutting gauge protection inserts on bit body, the bit has good gauge protection and up drill capability.3.Bearing StructureHigh precision journal bearing. Balls lock the cone.Hardface heard bearing surface. Cone bearing inlaid with friction-reducing alloy. Abrasion resistance and seizure resistance of the bearing are improved. Compared with three cone bit, the leg bearing is bigger, so it can receive higher WOB and high reliability.4.Hydraulic DesignSmall angled watercourse design increased the shirttail thickness and can effectively prevent the watercourse erosion.Optirnized hydraulics structure improves the clearing capability and increases ROP.

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