XR220A Rotary Drilling Rig Performance Characteristics 1. Adopting the imported tur-supercharged engine with European III effluent standard, it has Super-power. The complete machines have passed CE authentication, meet environmental protection and energy conservation as developing requirement. 2. With the hydraulic pressure svstem adopted threshold power control and positive flow control, the system acquired high efficiency and higher energy conservation. 3. Adopting intelligent controlCAN bus and PLC control with autonomic knowledge property right, include the automic/self verticality for the mast, depth auto-inspection of the dill hole, engine's'idle speed auto-cont rolled, reposition of auto-controlled, and fault diagnosis of intelligent control, etc. 4. The special crawler undercarriage with the advanced integrated manufacturing system have super-stability and high structural strength. As adopting heavy hydraulic telescopic crawler, it meets high moving character and easy transportation. 5. Main and auxiliary winch are easier operation with seted in the back-up flatform. The main winch is provided a freefall hydraulic system for automatic follow during the drill operation. 6. The patented parallelogram articulated structure actualizes a wider wrok range. The highly strengthened box-type steel structure design makes the mast of highly-rigidity and anticontored, t herefore the drill accuracy is heightened. The lubrication-free bearing are equipped in the flexible articulation joints. So the regular maintenance is unnecessary. Upper structure can slew with 360 degree, and discharge slag at random angle. 7. A variety of Kelly bars area vailable, six knot Kelly bars can be selected, and maximum drill depth can reaches 80 m. model XR220A Engine Model CUMMINS QSL-325 Rated Power KW/rpm 242/2100 Rotary Dvive Max. output torque kN·m 220 Rotary speed r/min 7~22 Max. Drilling Diameter With casing mm 1500 Without casing mm 2000 Max. Drilling Depth m 67,53.5 Pull-Down Cylinder Max. pull-down piston push KN 200 Max. pull-down piston pull KN 200 Max. pull-down piston stroke m 5.0 Main Winch Max. pulling force KN 230 Max. pulling speed m/min be equal or greater than 65 Auxiliary Winch Max. pulling force KN 80 Max. pulling speed m/min be equal or greater than 60 Mast Rake Side/forwards/backwards ±5°/5°/15° Undercarrige Max. traveling speed KM/h 1.5 Max. grade ability % 40 Min. Clearance mm 428 Track shoe width mm 800 Distance between tracks mm 3500~4400 Hydraulic Systerm Working pressue Mpa 32 Overall Drilling Weight t 70 Dimension Working condition mm 10260×4400×22043 Transportation condition mm 16355×3500×3457
