KJ310 Underground Tunnel Jumbo

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  • Description

The KJ310 hydraulic tunneling drilling rig was specially engineered to operate in extremely inclined tunnels with a maximum slop of 25°. It is qualified for the drilling of hard-rock in mines with sections in the range of 12-35 square meters.

1. The firm flexible boom is capable of optical coverage of the section; 360° rotation and self-leveling beam make drill positioning easy. The boom can also be used for the drilling of lateral cross-cut and rock bolting.
2. The drill rig is capable of advancing the beam’s translation, automatic suspension of drilling of end hole, slag blowing at the hole bottom and electronic impulse lubrication, improving drilling efficiency;
3. The stepped piston is used for the high-frequency impacting rock drill and this can improve the transmission efficiency of the impact wave and drilling speed and reduce the consumption of drilling tools.
4. Considerable space and automatic functions enable the driver to concentrate on drilling in a safe, fast and accurate manner.
5. The drill rig provides a good view for the operator. All the relevant parts are kept in good protection, meanwhile maintenance easily.

Zhengzhou Kaishan Mechanical&Electrical Equipment Co.,LTD.

Zhengzhou Kaishan Mechanical&Electrical Equipment Co.,LTD.

Zhengzhou Kaishan Mechanical&Electrical Equipment Co.,LTD.


Technical Parameters
1. Dimensions and weight




WeightAbout 12000kg/Appr. 12000㎏

Tramming speed on flat ground2.5km/h

Maximum climbing capacity25°

2. Safety protection

Noise level<100dB(A)
Lifting safety roofMeet the requirements of FOPS and ROPS

3. Air & water system

Air compressor1*JN5Oil Consumption of lubrication180-250g/h
Capacity of air compressor0.5m3/min
Pressure6-8barWater pump1xCR31xCR5
Device of shank lubricationElectronic pulse lubrication pumpPower1.5kW5.5kW
Air consumption of lubrication0.3m3/minCapacity of water pump3m3/h6m3/h

4. Chassis

Diesel engineCummins QSB3.9-C80-31
Parking brakingWet multidisc brake
Exhaust purificationExhaust catalystTravelling brakingWet multidisc brake
Drive systemtrack travelling driven by double-speed motorFuel tank30L

5. Drilling System/Electric hydraulic power unit

Rock drill1×HC50/R381×HC109/R381×HC95LM/R38
Impact power13kW18.8kW21kW
Impact flow105L/min135L/min100-120L/min
Impact pressure130bar135bar180bar
Maximum rotary pressure150bar150bar210bar
Impact Frequency62Hz47Hz62 Hz
Hole diameterΦ32-76mmΦ42-102mmΦ42-102mm
Beam rotation360°
Feed extension1600mm
Model of drill boomK 26F
Form of drill boomSelf-leveling
Boom extension1200mm
Impact /Feed/ PositioningAxial variable displacement piston pump
RotationGear pump
Filter fineness10μ
Hydraulic oil tank240L
Hydraulic coolerWater cooler
Working voltage380V
Starting methodStar-triangle
Cable reel1*F440
Length of reel cabling100m80m
Outer diameter of cableΦ28mmΦ32mm
Cable specifications3×35+3G63×50+3G6


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    KJ310 Underground Tunnel Jumbo
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