... reserves for all kind of drill XD-5 hydraulic driven driller is specially designed for earths surface ... principal machine contains trailer type chassis, diesel engine, hydraulic system, operating system, boring tower, main hoist, wireline ... /Min 15 MPaHydraulic oil coolingAir coolingPower unit & Drill shaft rotary speedDynamic forcedouble speed /reversible hydraulic motorUltimately drive49/21Revolution ...