... product: XY-6B is a Mechanical hydraulic vertical shaft coring drilling rig. It can be equipped with diesel and electric motor for ... .Main parameter of XY6BDrilling capacityBQ2000mNQ1800mHQ1200mPQ800mPower head Rotary speed(rpm)Forward:80,175,225,260,360,490,730,1000,Reverse:62,170Stroke600mmBore ...