1.Brief introductions of KY-250 hydraulic exploration drilling rig for metal mine The KY250 hydraulic exploration drilling rig for metal mine is ·small in size ·light weight ·convenient to install and operate ·excellent linkage and adjustable speed range ·suitable for drilling at any angle in the tunnel or surface. 2.Specifications of KY-250 hydraulic exploration drilling rig for metal mine Drilling diameter 36.5mm /46.5mm Drilling depth 250m¸33 Steel drill pipe/200m¸43 Steel drill pipe Borehole angle 0°-360° Spindle speed 400-1400r/min Spindle output torque 150-400nm Rated pulling force 40kn Rated pulling speed 0.3m/s Oil supply mode double gear pump Rated system pressure 16mpa Oil pump model CBF-F71/10 Hydraulic oil model antiwear hydraulic oil YB-N46/YB-N32 (winter) Motor model manual variable motor A6V80MA Motor specification 30kw Weight main engine 275kg/backbone 40kg/operating floor86kg/power car 420kg