Jw Factory 215.9mm Tricone Rock Bit/Three Cone Roller Bit with Sealed Bearing

• Surface Treatment: Spray-Paint
• Manufacturing Process: Forging
• Material: Carbon Steel
• Bit Size: 8 1/2"(215.9mm)
• Thread: 4 1/2"Reg
• Bearing Type: Journal Bearing
• Model NO.: IADC537
• Sealed Material: Rubber/Metal
• Formatiom: Soft to Hard Rock
• Color: Blue,Golden
• Warranty: 180hours
• Advantage: High Performance
• Service: The Best Service
• Market: Europe,America,Africa,Middle East
• Transport Package: Wooden Case
• Specification: IADC117-537
• Trademark: JW
• Origin: Cangzhou, Hebei, China
• HS Code: 82071990
• Production Capacity: 5000PCS/Year

Product Description

JW factory 215.9mm tricone rock bit/three cone roller bit with sealed bearing

1.Specification of 215.9mm tricone bit

 

IADC	WOB	RPM	Applicable Formations
	(KN/MM)	(r/min)
	(Bit Dia)
116  117	0.35~0.8	150~80	Very soft formations with low compressive strength and high drillability,such as clay,mudston,chalk etc.
126  127	0.35~0.9	150~70	Soft formations with low compressive strength and high drillability,such as mudstore,gypsum,salt,softshale.soft limestone,ect.
136  137	0.35~1.0	120~60	Soft to mesium soft 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 nterbeds,ect.
216  217	0.4~1.0	100~60	Medium hard formations with high compressive strength,such as medium soft shale,hard gypsum,medium soft limestone,medium soft sandstone,soft formation with harder interbeds ect.
246  247	0.4~1.0	80~50	Medium hard formations with high compressive strength,such as abrasive shale.limestone,sandstone,dolomite,hard gypsum,marble,ect.
417  437	0.35~0.9	150~70	Very soft formations with low compressive strength and high drillability,such as clay,mudston,chalk,gypsum,salt,soft shale,soft limestone,etc.
447
517  527	0.35~1.0	140~60	Soft formations with low compressive strength and high drillability,such as mudstore,gypsum,salt,soft shale.soft limestone,ect.
537  547	0.45~1.0	120~50	Soft to medium formations with low compressive strength,such as medium soft shale,medium soft limestone,medium soft sandstone,medium formation with harder and abrasiver interbeds,ect.
617  627	0.45~1.1	90~50	Medium hard formations with high compressive strength,such as hard shale,limestone,sandstone,dolomite,ect.
637	0.5~1.2	80~40	Hard formations with high compressive strength,such as sandstone,limestone,dolomite,hard gypsum,marble,ect.

2.215.9mm tricone bit/three cone roller bit's pictures 



3.Packing&shipping
Packing:wooden case(standard export packing)
Transportation type:by sea,by air,by train ect as your requirement


4.Our service
215.9mm tricone bit/three cone roller bit 
Delivery Time:Based on order quantity, normally it takes 30 days for production.Only 2 or 3 days if we
have stock on your request size.
Quality Control:We have our professional QC and all the products will be strict inspection and testing for every order before shipping out. 
After Services:Technical Support will be available in any time. We could provide the professional suggestion for you.
EX:1.Select the right most suitable products.
      2. According to the rock types, choosing the face type, button tooth type.
      3. According to the different purpose,. choosing the different body type 

5.Contact us
All sizes and type can be customized.
If you need,welcome to contact me at any time.