8.5" RBit Roller Bit/ Roller Cutter for piling IADC 637 hard rock

Product Description8.5" RBit Roller Bit/ Roller Cutter for piling IADC 637 hard rockBasial Specification IADC Code637Bit Size8 1/2''Tooth TypeinsertBit Weight12.5kgMeterialtungsten carbide insert,inlaid friction-reducing alloyBearingMetal sealed bearingLubrication and seal Adopt advanced grease Pressure control systemThe advanced compensatorThrust facesHardfaced with wear resistant alloyNozzlesoneGauge protectionOn the Shirttail:More carbide inserts increase gauge holding capability and bearing life Recommended Drilling ParametersIADCWOB(kn/mm)RPM(r/min)Formations1170.30-0.753180-60very 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 Product Picture ShowRelated ProductsCompany ProfileBasic informationBusiness Type:Manufacturer,Trading CompanyMain Products: Tricone Bits,TCL Tricone Drill Bit ,PDC bIts,Steel Tooth Tricone Bit,Roller ConeTotal Annual Revenue:US$1 Million~US$2.5MillionTop 3 Market:Domestic Market 50.00%,Eastern Asia 10.00%,Mid 10.00%Location:Hebei,China(Mainland)Toal Employees:101-200 peopleYear Established:2016Company Photos

Product categories: PDC Bits

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商品名称: 8.5" RBit Roller Bit/ Roller Cutter for piling IADC 637 hard rock
商品编号: PDC

Product Description

8.5" RBit Roller Bit/ Roller Cutter for piling IADC 637 hard rock

Basial Specification
IADC Code	637
Bit Size	8 1/2''
Tooth Type	insert
Bit Weight	12.5kg
Meterial	tungsten carbide insert,inlaid friction-reducing alloy
Bearing	Metal sealed bearing
Lubrication and seal	Adopt advanced grease
Pressure control system	The advanced compensator
Thrust faces	Hardfaced with wear resistant alloy
Nozzles	one
Gauge protection	On the Shirttail:More carbide inserts increase gauge holding capability and bearing life

Recommended Drilling Parameters
IADC	WOB(kn/mm)	RPM(r/min)	Formations
117	0.30-0.753	180-60	very soft formation with low compressive strenght and high drillability,such as caly,mudstone,chalk,etc.
127	0.30-0.85	180-60	soft formation with low compressive strength and high drillability,such as mudstone,gypsum,soft limestone,etc.
217	0.35-0.95	150-60	soft to medium hard formations with high compressive strength,such as medium soft shale,sandstone,limestone,etc.
437	0.35-0.9	240-70	soft formation with low compressive strenght and high drillability,such as caly,mudstone,chalk,soft limestone,etc.
517	0.35-1.0	140-60	medium soft formation with low compressive strength and high drillability,such as mudstone,sandstone,shale,etc.
537	0.45-1.0	120-50	medium soft to medium hard formation with low compressive strength,such as medium shale,sandstone,medium limestone,etc.
617	0.45-1.1	90-50	medium hard to hard formation witj high compressive strength,such as hard shale,limestone,dolomite,etc.
637	0.5-1.2	80-40	hard 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