1. Features of XY-3 hydraulic core drilling rig ·XY-3 hydraulic core drilling rig adopts CG140 model auto transmission, has 10 rotation speeds and reasonable speed range, with eight forward rotation gears and two reverse rotation gears, high speed, strong stroke and wide scope of application ·Large torque, strong bearing capacity, can realize long distance control speed change, operation centralized and convenient ·Large engine power and two reverse rotation gears, can easily solve the water well drilling work accident. ·Equipped with normally closed hydraulic chuck, operation is flexible and reliable ·The independent operation of the vertical shaft and the hoist can be realized ·The diameter of the vertical shaft through the hole is large and can be replaced with a large six party active drill rod 2. Parameters of XY-3 hydraulic core drilling rig XY-3 hydraulic core drilling rig Drilling depth 600m Borehole diameter 300-75mm Max open hole caliber 300mm End hole caliber 75mm Drilling rod diameter 60 Drilling angle 90°-65° Spindle  spindle speed 30-1050r/min Spindle stroke 29-137r/min Spindle stroke 60mm Spindle inner diameter 96mm Lifting capacity 6000kg Hoist  Max.single line lifting speed 0.5-1.9m/s Wire rope caliber 12.5mm Max.single line lifting capacity 4000kg Reel diameter 300mm Wire rope length 50m Maximum lifting capacity of single rope 3000kg Mud pump Type Horizontal three cylinder BW-250 Displacement 250l/min Work pressure 80kg/cm² Water inlet pipe diameter 75mm Water outlet pipe diameter 50mm Gear oil pump Duplex gear oil pump CBF-F63/25 Front displacement, pressure 63l/min 20mpa Water outlet pipe diameter 25l/min 20mpa Power Diesel engine 39kw Electric machinery 22kw Weight size Drill weight 1800kg Shape size 2500*900*1800mm