XR series of rotary drilling rigTechnical Features:It is the largest homemade rotary drilling rig at present, and it fills the gap.It adopts the special telescopic hydraulic crawler chassis, meets the requirements of extra stability and transportation convenience. The imported Cummins turbocharged engine (Euro standards) has enough power reserve, which meets the requirements of working at plateau areas, and the noise and emission all meet national standards. Optimal constant power output keeps the machine working under optimum conditions.

The hydraulic system adopts load sensing technology, which makes the system more efficient and energy saving.The patented rectangle articulated system makes the work area more wide. The mast adopts high strength box type, it has high rigidity and anti-flex ability, which effectively guarantees the precision of boring. The articulated parts all adopt lubrication-free bearings, ensuring flexible rotary. 360 superstructure slewing, and the dregs can be released at any angle.

The intelligent control system with independent intellectual property right, CAN general line, and PLC control system, including automatic/ manual adjustment of the vertical angle of drilling mast, automatic measuring and displaying of depth, automatic slewing positioning, intelligent troubleshooting control, and etc.The rotary drive adopts three speed redactor to drive, which can thrust at big torque and throwing soil at high speed with high efficiency.

model 

XR280Engine Model CUMMINS QSM11-C400Rated Power KW/rpm 298/2050Rotary Dvive Max. output torque kN·m 280Rotary speed r/min 722Max. Drilling Diameter With casing mm 2000Without casing mm 2500Max. Drilling Depth m 88,74Pull-Down Cylinder Max. pull-down piston push KN 210Max. pull-down piston pull KN 220Max. pull-down piston stroke m 6.0Main Winch Max. pulling force KN 260Max. pulling speed m/min ≥60Auxiliary Winch Max. pulling force KN 100Max. pulling speed m/min ≥65Mast Rake Side/forwards/backwards ±4°/5°/15°Undercarrige Max. traveling speed KM/h 1.5Max. grade ability % 40Min. Clearance mm 425Track shoe width mm 800Distance between tracks mm 35004800Hydraulic Systerm Working pressue Mpa 32Overall Drilling Weight t 82Dimension Working condition mm 10670×4800×23146Transportation condition mm 17380×3500×3494

Rotary Drilling Rig (XR280)