Water Well Drilling Swivel Tungsten Scrap Drill Bit/ TCI Tricone Rock Roller Bit

• Customized: Customized
• Standard: API
• Length: Stub-length
• Type: Center Drill Bit
• Usage: Well Drilling, Metal Drilling, Masonry Drilling
• Transport Package: Export Wooden Box
• Model NO.: 7 5/8REG
• Specification: Depends on drill size
• Trademark: YiKuang
• Origin: Linqing, Liaocheng, Shandong, China
• HS Code: 7302901000
• Production Capacity: 2000pieces/Year

Product Description

Product Descriptio

Prismatic drill rod refers to prismatic tapered drill pipe used for coal tunnel exploration, also called triangular drill pipe, anti sloughing hole drill pipe, ABS pipe. With prismatic steel pipe as rod body and thread or hex or square joint as connection type, it is manufactured by the friction welding craft. Prismatic drill rod pipe is widely used in the coal seam and similar geological conditions for coal mine water exploration and gas drainage borehole construction, and can also be used in anchorage and drilling in the field of geophysical prospecting and construction of water conservancy engineering.



Technical Parameter



tricone bit

Size of Rock Bit	17 1/2 inch
	444.5mm
IADC Code	537
Thread Connection	7 5/8REG
Operating Parameters
WOB (Weight On Bit)	0.35~1.05
RPM	120~50
Formation	Medium formation with high compressive strength ,such as medium soft shale,medium softlimestone,medium soft sandstone,medium formation with harder and abrasive interbeds,etc.

IADC	Rock formation	WOB (KN/mm)	PRM(r/min)
417/427/437	Low compressive strength, high drill-ability and extremely soft formation, like shale, clay, sandstone, conglomerate etc	0.35~0.90	140~70
447	Low compressive strength, high drill-ability and soft formation, like shale, clay, sandstone, soft limestone, salt rock, plaster etc.	0.35~1.00	140~60
517	Low compressive strength, high drill-ability and soft formation, like shale, clay, sandstone, soft limestone, salt rock, etc	0.35~1.05	120~50
527	Soft formation with low compressive, like Low compressive strength, high drill-ability and soft formation, like shale, clay, sandstone, soft limestone, salt rock, anhydrite etc.	0.35~1.05	120~50
537/547	Low compressive strength, medium hard formation with hard abrasive interlayer, like Hard shale, anhydrite, soft limestone, sandstone, dolomite with mezzanine, etc.	0.50~1.05	110~40
617/627	High compressive strength, medium hard and thick hard interlayer, like hard shale, limestone, sandstone, dolomite, etc.	0.50~1.05	80~40
637/737	High compressive strength, medium hard and high abrasive formation, like limestone, dolomite, sandstone, chert, etc.	0.7~1.20	70~40

Shandong Yikuang  factory 17 1/2inch IADC 537 TCI tricone hard rock drill bit 

Cutting Structure

The wear-resistance of the teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for the steel tooth bit.The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit

Gauge Structure

Multiple gague protection with gauge trimmers on the heel and gauge inserts on the gauge surface of the cone,tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capacity and bearing life.

Bearing Structure

High precision journal bearing with two thrust faces,Balls lock the cone.Hardfaced head bearing surface.Cone bearing inlaid with friction-reducing alloy and then silver-plated.Abrasion resistance and seizure of the bearing are improved.and suitable for high rotary speed

Seal and Lubrication

The advanced metal seal package consists of two metal seals and two elastic energizers.Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force,and achieves the bearing seal.In the drilling,metal seals are relatively dynamic,and the energizers are static.This will improve the reliability and durability of bearing seal.The pressure compensator system and advanced grease can greatly increase the lubricating reliability.

Product Application

It is suitable for down hole motor and high speed applications
 

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