KAISHAN GENERAL MACHINERY CO., LTD.KAISHAN
Drilling RigsFor Mining & Tunneling
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  • Hydraulic Tunneling Drilling Rig, KJ311

Hydraulic Tunneling Drilling Rig, KJ311

Secondary breaking drill rig

Hydraulic Tunneling Drilling Rig, KJ311
  • Dimensions (L×W×H): 11300×1750×2000/3000mm
  • Weight: Approx.12000kg
  • Maximum gradeability: 25%(14°)
  • Range of cross section: 12-35m²

KJ311 hydraulic tunneling drilling rig is a secondary breaking drill rig engineered for hard-rock mining and tunneling operations, with cross sections of 12-35m².

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Video Show
Hydraulic Tunneling Drilling Rig
Hydraulic Tunneling Drilling Rig
Hydraulic Tunneling Drilling Rig
Structure Diagram
Structure Diagram
Structure Diagram
Structure Diagram
Technical Specifications
Dimensions and weight
Length 11300mm
Width 1750mm
Height 2000/3000mm
Weight Approx.12000kg
Tramming speed on flat ground 10km/h
Maximum gradeability 25%(14°)
Safety protection
Noise level < 100dB(A)
Lifting safety roof Meet the requirements of FOPS and ROPS
Air and water system
Air compressor 1×JN4 Oil consumption of lubrication 180-250g/h
Capacity of air compressor 0.5m³/min
Pressure 6-8bar Water pump 1×CR3 1×CR5
Shank lubrication device Electronic pulse lubrication pump Power 1.5kW 5.5kW
Air consumption of lubrication 0.3m³/min Capacity of water pump 3m³/h 6m³/h
Chassis
Diesel engine Cummins QSB3.9-C80-31 60kW/2200rpm Tires 11.00-20
Exhaust purification Exhaust catalyzer Steering mechanism Articulated steering angle: ±40°
Drive system Closed hydraulic system for four-wheel driving Travelling braking Two-circuit hydraulic brake
Swing angle Swing of rear axle: ±10° Parking braking Wet multi-disc brake of reducer
Fuel tank 60L
Drilling system
Rock drill (drifter) 1×HC50/R38 1×HC109/R38 1×HC95LM/R38
Impact power 13kW 18.8kW 21kW
Impact flow 105L/min 135L/min 100-120L/min
Impact pressure 130bar 135bar 180-200bar
Maximum rotary pressure 150bar 150bar 210bar
Impact frequency 62Hz 47Hz 62Hz
Torque 325Nm 780Nm 764Nm
Hole diameter Ø32-76mm Ø42-102mm Ø42-102mm
Beam rotation 360°
Feed extension 1600mm
Model of drill boom K26F
Form of drill boom Automatic parallelism
Boom extension 1200mm
Electric hydraulic power unit
Motor 45kW 55kW 75kW
Impact/Feed/Positioning Variable displacement axial piston pump
Rotation Gear pump
Filter fineness 10µ
Hydraulic oil tank 240L
Hydraulic cooler Water cooler
Working voltage 380V
Frequency 50Hz
Starting method Star/delta
Cable reel 1×F440
Length of reel cabling 100m 80m
Cable specifications 3×35+3G6 3×50+3G6
Features
  • Derivative models:
    Height Enhanced model: Designed for large tunnels, with a maximum horizontal height of 7.4 meters and a width of up to 7.6 meters. Double-layer guide rail type: Designed to accommodate rock bolting, capable of drilling 2.2-meter rock bolt holes in 4-meter high tunnels. Plateau model: Specifically designed for construction in high-altitude areas.
  • Hydraulic tunneling drilling rig is equipped with the French Montabert imported medium and low pressure high-frequency hydraulic rock drill, using a stepped piston for enhanced reliability and lower maintenance costs.
  • The original power control valve block from Montabert, France is equipped, enabling it to feature automatic impact pressure adjustment, and anti-jamming function. This ensures smooth and accurate hole drilling during the operation.
  • The hydraulic tunneling drilling rig utilizes a newly designed Cartesian coordinate linear motion drilling arm to maintain automatic parallelism with the initial position to achieve optimal cross-sectional coverage shape and eliminate blind spots within the section range. The drilling arm can also be used for lateral stone breaking and rock bolt drilling operations.
  • The drilling equipment adopts auto-stop device and bottom hole debris clearing function, automatically stopping pushing and impacting after finishing the drilling process. The handle control can be used to blow out residue and water at the bottom of the hole, eliminating the need for manual cleaning and reducing operation cycle time.
  • Kaishan brand energy-saving integrated direct-connected screw air compressor is used, allowing for smooth operation, easy maintenance, significant energy savings, and reduced pollution.
  • Designed with a Cummins diesel engine and a four-wheel hydraulic drive walking system, this enables stepless speed change, strong climbing ability, and high travel speed. The drilling equipment is also equipped with an exhaust purification device, greatly improving underground working conditions.
  • Walking brakes use a dual-circuit multi-plate wet brake system, complemented by a multi-disc parking brake system, providing dual safety measures for the drilling rig. Additionally, multiple emergency switches greatly enhance underground operational safety.
  • The hydraulic tunneling drilling rig features compact structure and flexible steering. Its mining articulated chassis is matched with wet wheel axles, with an articulated steering angle of ±40° and a rear axle swing angle of ±10°. This enables the drilling rig to easily navigate through narrow 2-meter wide tunnels and perform right-angle turns in 3-meter wide tunnels.
  • Spacious working space ensures good driver visibility, and the drilling rig is equipped with a liftable safety roof and a series of automatic functions.
Main Part Brand
Item Name Brand Country
1 Rock rill Montabert France
2 Rock drill control system Montabert France
3 Screw oil cylinder HELAC USA
4 Plunger pump Danfoss USA
5 Motor Danfoss USA
6 Gear pump Danfoss USA
7 Steering gear Danfoss USA
8 Hydraulic valve MICO USA
9 Dual brake valve MICO USA
10 Valve group hydro contro Italy
11 Diesel engine DEUTZ Germany
12 Cable reel Cavotec Italy
13 Cable Nexans France
14 Water pump Grundfos Germany
15 Drill rod Kaishan China
16 Drill bit Kaishan China
17 Jointer Eaton USA
18 Hose Eaton USA
19 Electrical elements Schneider Germany
20 Screw air compressor Kaitain China
21 Oil cylinder Waco Germany
22 Energy accumulator Liming China
23 Cooler Changzhou China
Hydraulic system cooler HYDAC Germany
24 Main motor Wolong China
25 Tyre Chaoyang China
Details
  • Hydraulic Tunneling Drilling Rig, KJ311
  • Hydraulic Tunneling Drilling Rig, KJ311
  • Hydraulic Tunneling Drilling Rig, KJ311
  • Hydraulic Tunneling Drilling Rig, KJ311
  • Hydraulic Tunneling Drilling Rig, KJ311
  • Hydraulic Tunneling Drilling Rig, KJ311
  • Hydraulic Tunneling Drilling Rig, KJ311
  • Hydraulic Tunneling Drilling Rig, KJ311
  • Hydraulic Tunneling Drilling Rig, KJ311
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Our Products
  • Underground Drill Rigs
    1. Face Drill Rigs (Jumbos)
      KJ311 KJ311-4 (Diesel Power Type) KJ311 (Plateau Type) KJ311 (Computer-assisted Drilling Type) KJ311 (Telescopic Feed Beam Type) KJ311 (Increased Height Type) KJ211 KJ212 K215 KJ310 KJ321 KJ421 KJ422
    2. Hydraulic Rock Bolting Rigs
      KM211 KM311
    3. Hydraulic Longhole Drilling Rigs
      KS311 KSJ21
    4. Hydraulic Scaling Rigs
    5. In-The-Hole Longhole Drilling Rigs
  • Surface Drill Rigs
    1. Rotary Blasthole Drilling Rigs
      KG310/KG310H KG320/KG320H KG410/KG410H KG420/KG420H KG420S/KG420SH KG430/KG430H KG430S/KG430SH KG510/KG510H KG520/KG520H KG590/KG590H KG610/KG610H KG690/KG690H KG726Ⅲ/KG726ⅢH KG920BⅢ/KG920BHⅢ KGH3AⅢ
    2. Integrated Surface DTH Drilling Rigs
      KT5C KT5D KT5J KT7C KT7D KT9C KT9D KT11 KT12 KT15 KT15C KT20 KT20S KT25 ZT5 ZT10
    3. Surface Top Hammer Drill Rigs
      KL510 KL511
  • Well Drilling Rigs
    1. Well Drilling Rig, JR200
    2. Well Drilling Rig, JR260
    3. Well Drilling Rig, JR300 (with 4.5m Composite Frame)
    4. Well Drilling Rig, JR300 (with 6.6m Composite Frame)
    5. Well Drilling Rig, JR350S
    6. Well Drilling Rig, JR380S
    7. Well Drilling Rig, JR400
    8. Well Drilling Rig, JR480
    9. Well Drilling Rig, JR500
    10. Well Drilling Rig, JR600
  • Air Compressor
    1. Screw Air Compressor
      KSCY KSZJ LGZJ
    2. Piston Air Compressor
      Diesel Driven Piston Compressor Electric Piston Compressor
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About Us

Since 1956, KAISHAN has been a reliable manufacturer of rock drilling equipment and air compressors, and it has a strong dedication to manufacturing a variety of drilling rigs for mining and tunneling.

Products
  • Underground Drill Rigs
  • Surface Drill Rigs
  • Well Drilling Rigs
  • Air Compressor
Contact Us
No. 10 Kaixuan Street(S), Economic Zone, Quzhou City, Zhejiang Province, China