Supper Hard Rock Drilling Tools IADC835 Tungsten Carbide Tricone Bits

IADC835-(250mm /9-7/8”)

Sealed bearing rock tri-cone bit.

Could be widely used for drilling work in open pit iron mines, molybdenum mines, copper mines etc. Thread connection conforms to API standards. 

IADC code: 835 

4、KX835-250

一、Structuring character

1. Rock breaking structure & ways: adopting tungsten carbide compacts. Rock breaking ways are rolling, gouging. In combination with optimized teeth placement, this model of bit is of good rock breaking efficiency. 

2. Bearing system: sealed bearing, grease lubrication. 

3. Thread connection: 6 5/8 REG

二、Applicable formation: abrasive supper hard formation (rock hardness f16-20), such as magnetie quartzite, quartzite, granite, etc. Thread connection: 6 5/8 REG

三、Recommended operating parameters

WOB: 6870-14710 N/cm bit dia.

RPM: 50-80 r/m