Hebei Tuff Heavy Industry Co., Ltd.
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Bore Piles Hard Rock Drill Roller Cone Bits With API Standard For Core Barrel
♥ Cutting Structure :
The durability of premium tungsten carbide insert is improved with new formulas and new techniques for insert bit;
♥ Gauge Structure:
Multiple gauge protection with gauge trimmers on the heel of cone,tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
♥ Bearing Structure :
High precision bearing with two thrust faces. Ball lock the cone. Hardfaced head bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver -plated. Abrasion resistance and seizure resistance
of the bearing are improved.
♥ Seal and Lubrication :
Premium O-ring,Optimal seal compression and curved seal structure can enhance the seal performance.The
pressure compensator system and advanced grease can greatly increase the lubricating reliability.
♥ Product Application:
It can receive high WOB in the conventional drilling. It is suitable for various formations by matching cutting
structure with different tooth shape,tooth density and tooth exposure height.
Production: