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

2. GAUGESTRUCTURE

Multiple gauge protection with gaugetrimmers on heel and gauge inserts on the gauge surface of the cone, tungstencarbide inserts and hardfacing on the shirttail increases gauge holdingcapability and bearing life.

3.BEARINGSTRUCTURE

High precision bearing with two thrustfaces. Balls lock the cone.Hardface heard bearing surface. Cone bearing inlaidwith friction-reducing alloy and then silver-plated. Abrasion resistance andseizure resistance of the bearing are improved and suitable for high rotaryspeed.

4.SEAL AND LUBRICATION

Theadvanced metal seal package consists of two metal seats and two elasticenergizers. Compressed energizers ensure good contact being kept on two sealingsurfaces of metal rings by elastic force, and achieve the bearing seal. In thedrilling, metal seal are relatively dynamic, and the energizers are static. Thiswill improve the reliability and durability of bearing seal. The pressurecompensator system and advanced grease can greatly increase the lubricatingreliability.

It is a company with manufacturing,design,research and development of PDC drilling bit for almost all codes of Tricone rock bit.In addition,we produce drilling rig,mud pump ,Diamond Drill and other accessories.

The company established in 1980,there are 10 workshop with 100 workers.Then under the leadership of the CEO Jinku Zhang,so much,in fact,that the ground now is broken for 100,000-square-foot addition,bringing total square footage of office space,machine shop,warehouse and storage facilities to more than 500,000 square-feet.What started out as one-man company now has grow into a worldwide organizatin that has sode bits all over the world.

Our company have reliable quality and competitive prices.We are certified by API and ISO.Whatever drilling tools you need,we can supply them,also we can produce them according to your special orders.

Tengda products not only won the trust of domestic users,but also are exported Southeast Asia,Russia,America and Africa.

If you are interested, we will be happy to send you any further information.Don't hesitate to cintact us and welcome to visit our factory. We are looking forward to adding you as our Cooperation partner.