97/8 SA632 Mining bit
The strength and wear resistance of inserts are improved by using carbides inserts with high strength and high wear resistance.
New bearing structure can further extend the service life bearing, and with the ability of applying high WOB and RPM.
The service life of the bearing is further extended by adopting harder and more wear resistant material for thrust bearing.
Uses and applicable ranges of the bits
Uses the bit is used for air drilling, e. g, for drilling operations in open coal mine ，iron mine and non-ferrous mine, as well as petroleum air drilling .
Applicable ranges: The bit is applicable for drilling formations with high compressive strength and high abrasiveness and medium hard formations, such as limestone, sandstone, dolomite and frieston, ect.
Recommended drilling parameters
WOB:35000—70000 1bs
RPM:50—110RPM
Basic specifications of the bit
IADC code: 6—3—2
Type of the bearing: roller—ball—roller—thrust button
Cutting structure:
Inner row and top row: conical compacts
Heel row: wedge compacts
Shank: 6 5/8NREG(API)
Weight: 59kg |
