12 1/4 S732 Mining Rock Bit Operation Instructions

Brief Introduction :

The bending strength and wear resistance of inserts are

Improved by using carbide inserts with high strength and

Excellent toughness. Through proper surface heat-treatment, the load capacity and service life of the high precision bearing are greatly improved. 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 Bit

Uses : The bit is used for air drilling, e.g., for drilling operations in open coal mine, Iron mine and non-ferrous mine.

ApplicableRanges : The bit is applicable for drilling hard

Formations with high compressive strength ,such as : dolomite ,hard sandstone, granite and chert, etc.