KM211-CYTM41/2(A) Hydraulic Rock Bolting Rig

Model: KM211-CYTM41/2(A)

Climbing capacity: ≤14°

Width of tunnel: ≥2.5m

Height of tunnel: ≥3m

Product Applications Product Features Technical Parameters Related Products


KM211-CYTM41/2(A) hydraulic rock bolting rig is specially designed for the construction of rock bolt in the pipe seam of low tunnels and it is capable of passing the section 2 meters wide and 2.5 meters high. It is suitably qualified for anchoring operations in tunnels whose section extends to a width of over 2.5 meters and a height of over 3 meters.



  • Complete functions. The advancing beam at two stations is available and it is equipped with a magazine having a storage capacity of 10 bolting rods, along with optional protective netting module; it is capable of performing the following tasks: drilling, netting and installation of rock bolting rod;
  • High safety. Operators are protected by the ceiling, far away from the danger area;
  • High efficiency. The stepped piston is used for the high-frequency rock drill and this can improve the transmission efficiency of impact wave and improve drilling speed and reduce the consumption of drilling tools and make it in good condition;
  • The drill rig provides a good view for the operator; the articulated chassis of four-wheel drive ensures the flexible, quick and safe driving in the narrow tunnel;
  • Considerable space and automatic functions enable the driver to concentrate on drilling in a safe, fast and accurate manner;
  • All the relevant parts are kept in good protection, also easy to maintain.

Technical Parameters

Technical Parameters
Dimensions and weight Air& water system
Length 10200mm Air compressor 1×JN5.5 Oil consumption of lubrication 180-250 g/h
Width 1600mm Capacity of air compressor 0.75m³/min
Height 1800/2650mm Pressure 6-8 bar Power of water pump 1.5kW
Weight Appr.12000kg Device of shank lubrication Electronic pulse lubrication pump
Tramming speed on flat ground 10km/h Capacity of water pump 3m³/h
Maximum climbing capacity 25%(14°) Air consumption of lubrication 0.3m³/min
Safety protection Chassis
Noise level <100dB(A) Diesel engine Cummins QSB3.9-80-31/60kW/2200rpm Travelling braking Hydrostatic brake
Lifting safety roof FOPS and ROPS certificate Exhaust purification Exhaust catalyst Parking braking Wet multidisc brake
Drill boom system
Model K22 Drive system Closed travelling system of four-wheel drive Fuel tank 60L
Boom extension 800mm
Drilling system Electric hydraulic power unit
  Drilling Bolt Rod Install Motor 45kW
Rock drill HC25/HC28 HC25/HC28 Impact/Feed/Positioning Axial variable displacement piston pump
Rod size R32 Rotation Gear pump
Impact power 8KW(HC25)/ 10KW(HC28) Filter fineness 10 μ
Impact Frequency 55-65Hz(HC25)/ 47-53Hz(HC28) Hydraulic oil tank 240L
Hole diameter 32-51mm ———— Hydraulic cooler Water cooler
Beam rotation 360° Working voltage 380V
Feed extension 480mm Frequency 50Hz
Applicable height of tunnel Length of bolt rod + about 1500mm(HC25) Starting method Star-triangle
Length of bolt rod + about 1700mm(HC28) Cable specifications 3×25+3G6
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