sealed bearing with jet air series (IADC635 200mm/7 7/8”)
1. KX635-200
Sealed bearing rock bit.
Could be widely used for drilling work in open pit copper mines, coal mines, iron mines, cement, limestone mines etc.
Thread connection conforms with API standard.
IADC Code: 635
1、KX635-200
一、Product Properties
Applicable formation: Medium hard formation with high compressive strength (rock hardness f 8-12), such as sand stone, limestone, dolomite, limonite, granodiorite-porphyry, phyllite etc.
Thread connection: 4 ½ REG
二、Recommended operating parameters
WOB: 4900-8830 N/cm bit dia.
RPM: 60-100 r/m
