12 1/4" IADC437/537 311.15mm Rotary Tricone Rock Drill Bit Roller Cone Bits for Sale

• After-sales Service: The Best After-Sale Service
• Manufacturing Process: Forging
• Surface Treatment: Paint
• Operation Pressure: Standard
• Material: Tungsten Carbide
• Bit Size: 12 1/4"(311mm)
• Model NO.: Iadc437/537
• Connected Thread: 6 5/8′′reg
• Bearing Type: Journal Bearing
• Sealed Material: Rubber Sealed& Metal Sealed
• for Formation: Medium to Hard Rock Formation
• Work Time: About 100 Hours
• Advantage: High Performance
• Service: The Best Service
• Color: Golden
• Market: Europe,America,Africa,Middle East
• Transport Package: Wooden Case
• Specification: IADC537
• Trademark: JW
• Origin: Cangzhou, Hebei, China
• HS Code: 82071990
• Production Capacity: 5000PCS/Year

Product Description

12 1/4" Iadc437/537 311.15mm Rotary Tricone Rock Drill Bit Roller Cone Bits For Sale 

 

Product Parameters

 

60mm,65mm,76mm,93mm,95mm,98mm(3 7/8"),114mm,118mm(4 5/8"),120mm(4 3/4"),133.3mm(5 1/4"),
139.7mm(5 1/2"),142.8mm(5 5/8"),149.2mm(5 7/8"),152.4mm(6"),155.5mm(6 1/8"),158.7mm(6 1/4"),
165.1mm(6 1/2"),190.5mm(7 1/2"),193.6mm(7 5/8")
200.0mm(7 7/8"),215.9mm(81/2"),222.2mm(8 3/4"),241.3mm(9 1/2"),244.4mm(9 5/8")
250.8mm(9 7/8"),269.8mm(10 5/8"),295.3mm(11 5/8"),311.1mm(12 1/4"),346.0mm (13 5/8")
349.2mm(13 3/4"),374.6mm(14 3/4"),381mm(15"),393.7m(15 1/2"),406.4mm(16")
444.5mm(17 1/2"),508mm(20"),558mm(22"),609.6mm(24"),660.4mm(26")

 

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.

Detailed Photos

 

Packaging & Shipping

Packing:wooden case or iron box
Shipping:by ship,by air,by train ect as your requirement

Exhibition photo

FAQ

Are you Manufacture or Factory?

Yes we are and from Hejian City Cangzhou city Hebei Province China.
How about the quality and supply ability?
We can supply you with 300 pcs tricone bits for a month.
What the MOQ?
1pc.
How to place an order?
1) Inform size and IADC code
2)Formation
3)quantity
What is the Pament?
T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance. We also can accept L/C AT SIGHT if the quantity is large.