Product Details

ISO Certificated TCI Roller Cone Palm

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

2. Drill 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. Drill 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.

4. Drill bit seal lubricants
Adopting advanced metal seal, greatly extend the drill life.

5. Drill bit applicable
Metal seal bit stable performance, than common rubber seal bit longer life, suitable for underground power drill and high penetration rate turntable drilling.

Recommended Drilling Parameters

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, udstone, 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.

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 udstone, 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.

Packaging and Delivery

Packaging

Wood Box

Fumigation Tray if necessary

Other special package can be applied

according to customer's need

Delivery

Lead Time:

Prepared to deliver within 1 week, if in stock

Depends on order quantity, when out of stock

Transportation:By sea or air

Service

Quality

Hejian Hengji Bit Manufacture Co.,LTD .,our products are made strictly complying with API specifications and ISO9001 .

We have integrated quality control covering each manufacture procedure to ensure good quality.

Sales Service

Hejian Hengji always insists promoting the services for our customers. We are willing to listen to our customers' indeed needs.

We are proud of help our customers solving their drilling problems. We'd like to help our distributors& to expand their markets

and develop their customers by means of technical support as well as information sharing.

Other Products

Hejian Hengji has been a professional designer and manufacturer of drilling bits for over 25 years. Our company has

developed more than 100 kinds of oil and mining drill bits, including tri-cone roller bits, single-cone roller bits, mining rock bits, pdc bits, pdc core bits, project rock bits, hole opeenrs,bits cutters,etc. More information can be found in our product category. If you are intrested in our products, please feel free to contact us through

email.

Company Profile

Hejian Hengji Bit Manufacture Co.,LTD .,as a leading manufacturer of tricone bit and PDC bits, our products are made strictly

complying with API specifications and ISO9001 .

Hejian Hengji Bit Manufacture Co.,LTD was established in 1990. 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 30 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.

Various types of bits available, including tri-cone roller bits (insert/steel tooth),
PDC bits,hole openers,bits cutters etc. If you feel much interest in our products, please
feel free to send us the email for more information. It will be our greatest
pleasure to help you.

Contact me for quotation! Hengji bits focus on Quality!