1.The applications of FY300 crawler pneumatic water well drilling rig civil engineering drilling geothermal drilling, drilling with large diameter and deep drilling footage Its fast, flexible and efficient 2.The specifications of FY300 crawler pneumatic water well drilling rig Model FY300 Gross weight t 8.8 Dimension mm 4350*1850*2750 Aperture mm 140-325 Drilling depth m 300 Feed stroke mm 6000 Travel speed km/h 2 Grade ability max. 30 Rising height from ground mm 230 Wind pressure mpa 1.7-3.3 Air consumption m³/min 23 Engine power kw 85 Rotary speed rpm 55-115 Rotation torque n.m 7200-8500