Our ompany can provide 220-1600mm HDD rock reamer with roller cones.The roller cone reamer is designed with metal seal or O-ring seal.IADC 217-737 tooth type is available for different formation.Cone Lock is used for preventing cone falling off when bearing failed.

Cutting Structure of this series tricone rock bit
The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.
Gauge Structure of this series tricone rock bit
Multiple gauge protection with gauge trimmers on heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
Bearing Structure of this series tricone rock bit
High precision bearing with two thrust faces. Balls lock the cone.Hardface heard bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed.
Seal and Lubrication of this series tricone rock bit
The advanced metal seal package consists of two metal seats and two elastic energizers. Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force, and achieve the bearing seal. In the drilling, metal seal 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.

Regular Size

Available size or as your requirement

Size		Bit Type
In.	mm	Bit Type
15 1/2	394	117, 127, 517, 537, 617, 637
18	457	117, 127, 517, 537, 617, 637
22	558.8	117, 127, 517, 537, 617, 637
28	711.2	117, 127, 517, 537, 617, 637
32	812.8	117, 127, 517, 537, 617, 637
34	863.6	117, 127, 517, 537, 617, 637
38	965.2	117, 127, 517, 537, 617, 637
42	1066.8	117, 127, 517, 537, 617, 637

Company Information

Hejian Longyue Drill Bit Manufacturer Co.,Ltd

is a manufacturer of Drill Bit with well-equpiied testing facilities andstrong technical force.With a wide range, good quality,reasonadle price and prompt delivery,our products are extensively used in oil filed,wrll Drilling,No Dig filed and other industries.our products are widely recognized and trusted by users and can meet continuously changing economic and social needs. We welcome new and from all walks of life to contact us for future business relationships andmutual success!

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