KQ311 Hydraulic Scaling Rock Drill Rig


Our KQ311 hydraulic rock drill is powered by diesel engine and is mainly suitable for scaling operations in tunnels and caves of metal mines and various underground projects. The folding arm is fitted with a hydraulic hammer and translation mechanism driven by the rotating oil cylinder. It is capable of all-around operation thanks to the working surface, top plate, side wall and base plate. Meanwhile, the proportion pilot control is applied to the hydraulic system, making it flexible and smooth. The equipment can considerably improve the scaling efficiency and operational safety based on the compact structure, excellent mobility, small turning radius, and powerful climbing capacity.

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Technical Parameters

DimensionsLength 8800 mmHydraulic hammerSOOSAN SB30
Width 1750mmImpact energy350J
Height 2650 mmImpact frequency550-950Hz
Weight12000 kgDrive flow25-40L/Min
EngineCummins QSB3.9-C80-31Working pressure90-125Bar
Power/ speed60 kW/2200 rpmAngle of swing arm±30°
Exhaust purificationExhaust catalystPitch angle of translational arm45°
Drive systemClosed hydraulic system for four-wheel drivingLifting angle of mid-arm60°
Pitch angle of front arm95°
Swing angle±6°Pitch angle of hydraulic hammer120°
Tires11.00-20Angle of swing cylinder±90°
Steering angle±35°Drill arm expansion and contraction1200mm
Turning radius (inner/outer)3510/5610Maximum working height8300mm
Travelling brakingHydrostatic brakeMaximum working width8800mm
Maximum tramming speed10km/hBackward angle of cab15°
Maximum climbing angle25%(14°)Power of water pump0.5Kw
Wheelbase3200mmFlow of water pump2L/Min
Wheel tread1400mmCab lift400mm
Ground clearance300mm


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