Rotary tricone bits IADC725 (250mm/9 7/8”)

KX725-250

Good universality.

Could be widely used in drilling work of open pit copper mines, iron mines, molybdenum mines, coal mines, cement, limestone mines etc. Thread connection conforms with API standard. IADC code: 725

3、KX725-250

一、Structuring Character

1. Rock breaking structure & ways: adopting tungsten carbide compacts. Rock breaking ways are rolling and gouging. 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: semi-abrasive hard formation (rock hardness f8-14), such as sandstone, limestone, dolomite, skarn, granodiorite-porphyry, phyllite, limonite, pyrite, hematite etc. The characteristic of this model is good universality. It adapts well in all kinds of rocks. So it’s suitable for drilling work in complicated formations. 

三、Recommended operating parameters

WOB: 5880-11770 N/cm bit dia.                                    

RPM: 50-80r/m