... drilling boom Xiamen Betopper Mining Machinery Co., Ltd. Crawler rig is very high efficiency drill,It's safe ... and rotating system,advanced dust collecting equipment and others. crawler pneumatic rock drill/drilling machineModelDia. Of holemmDepth of holemPush ... ≥2531.0-2.41520High(Mdeium)Pressure Crawler DrillKT9105-1251831315-Kaishan integral type crawler drillKW10115-25412031.05-2.4616-3070WATER ...