KSJ21-Tunnel Top-hammer Deep Hole Drilling Rig

  • KSJ21-Tunnel Top-hammer Mining Drilling Rig
  • Climbing Capacity:≦14°
  • Width of Tunnel:2.8-4.5m
  • Height of Tunnel:2.9-5.2m
  • Drilling Depth:35m

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FEATURES

KSJ21-Tunnel Top-hammer Mining Drilling Rig

Features:

The KSJ21 Hydraulic long-hole drilling rig is mainly used for blast drilling of medium-length hole mining and supporting drilling of anchor cable. Both the applicable height of tunnel 2.9m-5.2m and width of tunnel 2.8m – 4.5m. The support for the drill boom is capable of 360-degree rotation. In combination with swing boom and translational guide rail, it is capable of 360-degreee drilling and parallel drilling within three meters, thus meeting the requirements of various mine drillings.

Economical drilling depth up to 35 meters, optional 27+1 automatic receiving and unloading rod module (drill pipe length 900mm, automatic receiving rod depth 25 meters), to achieve single-person operation.

Heavy-duty aluminum alloy medium and deep hole special propulsion beam, front and rear hydraulic center support, ensure the stability of drilling process. With rod oil cylinder, maximum straightness of borehole is maintained.

The trolley-type workbench with a good sight is adopted; and the wireless remote controller can serve as an option.

The articulated mining chassis of closed hydraulic dive. The rig is 1.6m wide which is suitable for small and medium-size tunnels.

The stepped piston is used for the high-frequency impacting rock drill and this can improve the transmission efficiency of impact wave and drilling speed and reduce the consumption of drilling tools and make it in good condition.

SPECIFICATIONS

Techinical parameters Air & water system
Length 6750mm Air compressor 1×JN4 Oil Consumption of lubrication 180-250 g/h
Width 1600mm Capacity of air compressor 0.5 m3/min
Height 2580/3000 mm Pressure 6-8bar Water pump 1×CR10
 Weight Appr. 11000㎏ Device of shank lubrication Electronic pulse lubrication pump Power 5.5kW
Tramming speed on flat ground 10km/h Air consumption of lubrication 0.3 m 3/min Capacity of water pump 6 m3/h
Maximum climbing capacity 25% (14°)
Safety protection Chassis
 Noise level <100dB(A) Diesel engine Cummins QSB3.9-C125/93kW/2200rpm Steering mechanism Articulated steering: ±36°
Lifting safety roof FOPS and ROPS certificate
Exhaust purification Exhaust catalyst Travelling braking Hydraulic braking
Electric hydraulic power unit
Motor 75kW three-phase motor Drive system Closed travelling system of four-wheel drive Parking braking Wet multidisc brake
Impact /Feed/ Positioning Axial variable displacement piston pump Swing angle Swing of rear axle:±6° Fuel tank 30L
Rotation Gear pump Tires 300 – 15
Filter Fineness 10μ Drilling system
Hydraulic oil tank 240 L Model of rock drill 1×HC95LQW Thread of drill rod T38/T45
Hydraulic cooler water cooler Impact power 24kW Drilling depth Automatic extension 35m)
Working voltage 380V Impact flow 138L/min Pitch angle of advancing beam Front: 30°, back: 65°
Frequency 50HZ Impact pressure 200bar Ring angle 360°
Starting method Star-triangle Maximum rotary pressure 210bar Rang of Parallel holes 1640mm
Cable reel 1×K440 Impact Frequency 48-57 Hz Length of drill rod Automatic extension 0.9m)
Length of reel cabling 80m Torque 955Nm Length of advancing beam 2770mm
Cable specifications 3×50+3G10 Hole diameter 64-115mm Feed extension 800mm

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