Roller Cone Bits Soft Rock Drilling Bits (IADC545 )

IADC545 (250/ 9 7/8”)

Sealed bearing rock bit

Could be widely used for drilling work in open pit copper mines, coal mines, limestone mines etc. 

Thread connection conforms with API standard

IADC code: 645

2、KX545-250

一、Structuring character

      1. Rock breaking structure & ways: adopting tungsten carbide compacts, rolling, gouging, scraping, shoveling. In combination with optimized teeth placement, the rock breaking efficiency is high.  

2. Bearing system: sealed bearing, grease lubrication. 

3. Thread connection: 6 5/8 REG

二、Applicable formation: Soft formation with low compressive strength and high friablity such as shale, soft limestone, sandstone, interbedded ,dolomite.  

三、Recommended operating parameters

WOB: 2000-5000 N/cm bit dia.

RPM: 80-110 r/m