Hydraulic Tunneling Drilling Rig, KJ311
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Secondary breaking drill rig
- 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.
| 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 | |||||
| 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 |
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