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Model No. : | HJ |
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Brand Name : | Smith,Kingdream,SRT,Hughes |
Product description
Product Name:HJ Series Bit
Introduction:
HJ Series Bit Structure:
1.Journal bearing. Hardfaced head bearing surface. Cone bearing inlaid
with friction reducing alloy and then silver-plated. The load capacity
and seizure resistance of the bearing is greatly improved.
2. High wear resistance and excellent cutting ability of the insert bit
are given full play by using carbide compacts of high strength and high
toughness in combination with optimized compact numbers and rows, the
exposure height and special shaped compacts. For steel tooth bit, the
tooth surface is hardfaced with new type of wear resistant material and
thus extended working life of the cutting structure while maintaining
high ROP.
3.HJ series bit uses the most advanced sealing technology in the world,
i.e. the metal face seal (MFS). It can perform consistently in high
speed drilling applications, and is the ideal tool for drilling
directional and horizontal wells. In comparison with conventional rubber
O-ring sealed bits, the average working life (total drilling hours) of
HJ series bit under the condition of the same operating parameters can
be increased by 35%.
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