API Tricone Replaceabled Cutters Single 8 1/2" Roller Cone Bit For Well Drilling Single Cone Bit best sell cone

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.

WUHAN YIJUE TENGDA MACHINERY CO.,LTD is a professional engaged in various types of rotating drill tool design manufacturing, sales for the integration of modern high-tech enterprises. The company consists of pile driving machinery research and development center bucket tooth foundry precision parts processing factory, technical service center.Has a group of professional personnel engaged in geotechnical engineering geological drilling and digging engineering design. Now the main products are rotary digging drill tool, bucket tooth V19, 25t, a series of cutting tooth, drill pipe, introduced, reducer, gear, reverse branch, hydraulic pump, hydraulic motor, guide tube, steel wire rope of the management of more than 100 kinds of rotating drill accessories.


Rotary digging tool has formed scale production of our company, seriation, with the capacity matching supply in bulk. We are sany, yutong, CSR times, vanda rotating drill manufacturers supporting suppliers. In the national large-scale railway project: zheng west railway, wuhan-guangzhou railway, beijing-tianjin inter-city railway, the capital airport expansion, Olympic sports center along the railway, anshan iron and steel company, expansion, the beijing-shanghai high-speed railway, ha da high-speed railway, highway, railway and so on has been widely promotion and application in engineering. Product technology and quality has reached the leading level at home and abroad.

The pace of business excellence, use in the bone marrow blood bleeding like its name, striding wrote their own history, sincerity, together to build a dynamic, innovative with courage, wisdom, tenacity, perseverance, hold up the success of the dream factory! Let the enterprise goals positioning in high-tech industry and the world;"The pursuit of quality, industrial and rejuvenating the country" has become a yi jue never devaluation values of the company.


Wuhan yi jue machinery co., LTD. Must stand on the international platform to explore and solve the problem, the pursuit of high, spread to customers maximize the benefits of more resources and make a great contribution for the pile driving machinery industry!