... line coring drilling JRK-5 Hydraulic Core Rig1.Main Application and Performance JRK-5 hydraulic core rig applies to ... . The hydraulic core rig contains hydraulic pump, hydraulic motor, main valve, windlass, transmission, hydraulic oil cooler, liquid pressure gauge, hydraulic hose and ... m 1540 1200800475Power head capacityMotor CW/CCW hydraulic motor Final drive,gear ratio 2.5 Inner diameter of output ...