11′′ IADC637 Sealed Bearing Tricone Drill Bits

• Customization: Available
• Type: Center Drill Bit
• Material: Alloy Steel, Tungsten Carbide
• Model NO.: IADC CODE
• Usage: Well Drilling
• Certification: ISO
• Model Number: Steel Tooth Bit, TCI Bit
• Bearing Type: Sealed Bearing and Non-Sealed Bearing
• Suitable Formation: Soft, Medium Soft, Hard, Medium Hard, Very Hard
• Color: Blue or Red
• Transport Package: Wooden Case
• Specification: according requirement
• Trademark: HJ
• Origin: China
• HS Code: 8207191
• Production Capacity: 500

Product Description

HENGJI BIT SPECIFICATION
Bit Size	11'' (279mm)
IADC Code	637
Series	HR
Tooth type	TCI/tungsten carbide insert
Connection	6 5/8 API REG PIN
Bearing	rubber sealed bearing
Nozzle	three jet nozzles
Rotary Speed(rpm)	120~50
Weight on Bit(KN/MM)	0.45~1.0
Application	water well,oil well,HDD,exploration,etc
Formation	Soft to medium formation with low compressive strength,such as medium soft shale,medium soft limestone,medium soft sandstone,etc.

1. Tricone bit cutting structure
Adopting new formula of new technology of the high quality hard alloy tooth, enhance the cutting teeth mechanical properties.

2. Tricone bit diameter structure
Using multiple gage protection structure: Die with multidrug trimming tooth (GT teeth), round back, claw back set have cemented carbide gear, surfacing resistance mo alloy, strengthen ZhaoJian and anterior apply welding, greatly improving the drill gage protection ability.

3. Tricone bit bearing structure
Adopting high precision with radial sliding, two way thrust bearings, ball tight. Tooth claw big shaft neck and two stop surface welding have wear-resisting alloy, cone big hole and two stop surface solution and silver inlaid special alloy, increase the abrasion resistance and resistance bearing vice occlusive ability, improve bearing ability of high speed vice adapt.

IADC	WOB (KN/mm)	RPM (r/min)	Applicable Formations
114/116/117	0.3~0.75	180~60	Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc.
124/126/127	0.3~0.85	180~60	Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc.
134/135/136/137	0.3~0.95	150~60	Soft to medium 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 interbed, etc.
214/215/216/217	0.35~0.95	150~60	Medium formations with high compress strength, such as medium soft shale, hard gypsum , medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc.
227	0.35~0.95	150~50	Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble,etc
Note: The upper limits of WOB and RPM in above table should not be used simultaneously.

IADC	WOB (KN/mm)	RPM (r/min)	Applicable Formations
417/437/  447/415/435	0.35~0.9	150~70	Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, gypsum, salt, soft limestone, etc.
517/527/515	0.35~1.0	140~60	Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc.
537/547/535	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 abrasive interbeds, etc.
617/615	0.45~1.1	90~50	Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc
637/635	0.5~1.2	80~40	Hard formations with high compressive strength, such as sandstone, limestone, dolomite ,hard gypsum, marble, etc.
Note: The upper limits of WOB and RPM in above table should not be used simultaneously.

Company Information

 Hejian Hengji Bit Manufacture Co.,LTD  is specialized in manufacturing high quality rock bit,especially for tricone bit,PDC bit,hole opener,single cone bit and drag bit.with advanced CNC machines and R&D team and on-time delivery. We have kept our clients ahead of schedule and under budget by providing the highest quality tools at the best possible prices .
    We ship to more than 40 different countries and serve industries such as Oil & Gas, water well , Construction,Mining,  Horizontal Directional Drilling (HDD), Geothermal and Environmental. Our experienced staff is here to assist you with everything from choosing the right bit to shipping around the globe.
     Our goal is to provide our customers with the best quality tools, accessories and service in the industry. We are supported by many years of experience, trained professionals and a full machine shop.  Reduce the cost ,Speed the drilling ,Guarantee the safety is always our aim.  We have been always insist on"Hengji bit,focusing on quality".  
 

Main products
tricone bit(mill tooth and tungsten carbide insert tricone bit)
PDC bit(matrix body and steel body PDC bit)
hole opener(HDD rock reamer,barrel reamer,etc)
drag bit(step drag bit,PDC drag bit,chevron drag bit,etc)
accessories(single cone,bit breaker,nozzle ,etc)   

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