1. Characteristics of XY-8 hydraulic core drilling rig ·Machine adopts pneumatic shift Fastgear 8JS118 auto transmission and clutch, compact structure, smooth operation, stable performance, good wild card. ·Using auto-control flexible-shaft shift agency, we achieve the long-distance transmission shift. The pneumatic shift is light and agile, and has the advantage of hommization. ·Reasonable speed range and many speed radixes (8 forward speed, 1 reverse speed), with low-speed it has big torque (Max. up to 8000N.m). ·Using concentrated forced lubrication system, as long as the rig runs, the separate lubrication oil pump starts working and sends lubrication oil to each node that requires lubrication. When the oil lubricates drive mechanism, it will also take away the heat inside, (lubrication system with separate condenser), to prevent the components from heat caused by high-speed high-load state. ·hydraulic oil is supplied by gear oil pump, less power consumption, and the hydraulic system oil temperature is low and stable work. The system is equipped with a hand pump. When power machine can not work, workers can still use hand pump to lift tools from the bottom of the hole, in order to avoid burying accidents ·Advanced and compact structure, reasonable layout, all components are revealed outside, do not overlap, ease of maintenance, maintenance and repair. ·The rig has a low center of gravity and long backward stroke (up to 530mm). Easy to be fixed on tower base, the rig has good stability in high-speed drilling. ·With shockproof meter, its easy to observe hole situation. Control-handles are in reasonable layout, operation is flexible and reliable. 2. Parameters of XY-8 hydraulic core drilling rig Drilling angel 0-360° Electric motor Y280S-4 /75KW Diesel engine YC6A240-33/ 177KW Spindle 96mm Shanxi Fast Gear 8JS118 transmission and ancillary clutch, safe and reliable. Oil pump type/ model gear oil pump/ CB-32 core speed 2500r/min Displacement 32 ml/r Work pressure 20mpa Max.pressure 25mpa Direction of rotation Right(see from shaft end) Work core speed 700-1800r/min Single rope compensational speed 3-8m/s Single rope compensational load 45kn Form skids type(with sliding base) Rig backward stroke 530mm Dimensions(L*W*H) 3800*1500*2460mm Rig weight 6500kg