KJ211 tunneling drill rig
KJ211 is intended for mining, preparation work and tunnel boring. It is an independent hydraulic rock drilling rig that can drill vertical, inclined and horizontal blast holes; it is suitable for hard rock boring operations with a section of 7-35m2
Product Description
KJ211 is intended for mining, preparation work and tunnel boring. It is an independent hydraulic rock drilling rig that can drill vertical, inclined and horizontal blast holes; it is suitable for hard rock boring operations with a section of 7-35m2 .
The sturdy and reliable universal boom has the best cross-sectional coverage shape, and the 360° reversal and automatic leveling of the propelling beam facilitate quick and convenient drilling and positioning.
The boom can also be used for side-opening stone gates and bolt drilling operations.
The arrangement of the drill carriage ensures a good view of the operator.
The layout is balanced, and the powerful four-wheel drive articulated chassis ensures flexible, fast and safe driving in narrow lanes.
The high-frequency percussion rock drill uses stepped pistons to optimize the shock wave transmission efficiency, increase the drilling speed, reduce the consumption of drilling tools and improve the safety rate of the equipment.
The spacious working space and a series of automatic functions help the driver to concentrate on drilling safely, quickly and accurately.
All maintenance parts are well protected and easy to maintain at the same time.
Technical Parameters
| Dimensions and weight | |||
| length | 10000mm | ||
| width | 1600mm | ||
| height | 1850/2650mm | ||
| weight | About 11000 kg | ||
| Driving speed, horizontal | 10 km/h | ||
| Maximum climbing ability | 25% ( 20° ) | ||
| Security | |||
| Noise level | <110 dB(A) | ||
| Liftable safety ceiling | Meet the requirements of anti-rolling and anti-rock falling | ||
| Drilling system | |||
| Rock drill | 1×HC50/R38 | 1×HC109/R38 | 1×HC95LM/R38 |
| Impact power | 13kW | 18.8kW | 21kW |
| Impact flow | 105L/min | 135L/min | 100-120L/min |
| Shock pressure | 130bar | 135bar | 180bar |
| Maximum swing pressure | 150bar | 150bar | 210bar |
| frequency | 62 Hz | 47 Hz | 62 Hz |
| Torque | 325Nm | 780Nm | 764Nm |
| Aperture | 32-76mm | 42-102mm | 42-102mm |
| Advance beam flip | 360° | ||
| Propelling beam compensation stroke | 1600mm | ||
| Drill rod | R38-H35-R32-3700 | ||
| Drill boom | |||
| model | K22 | ||
| form | Automatic leveling | ||
| Boom telescopic | 800mm | ||
| Electric hydraulic pump station | |||
| Electric motor | 45kW/55kW75KW three-phase motor | ||
| Impact - propulsion - drill boom | Axial variable piston pump | ||
| turn around | Gear pump | ||
| Filtration accuracy | 10μ | ||
| Hydraulic tank | 240L | ||
| Hydraulic cooler | Water cooler | ||
| Operating Voltage | 380V | ||
| frequency | 50Hz | ||
| Starting method | Star - triangle | ||
| Cable reel | 1×F440 | ||
| Reel capacity | 100m/80m | ||
| Cable outer diameter | Φ28mm/Φ32mm | ||
| Cable specifications | 3×35+3G6+2×1.5 | ||
| 3×50+3G6+2×1.5 | |||
| Feng Shui Road System | |||
| Air compressor | 1×JN4 | ||
| Displacement | 0.5m 3 /min | ||
| pressure | 6-8bar | ||
| Shank tail lubrication device | Electronic pulse lubrication pump | ||
| Lubrication air consumption | 0.3m 3 /min | ||
| Lubrication oil consumption | 180-250g/h | ||
| Water pump | 1×CR3 | 1×CR5 | |
| power | 1.5kW | 5.5kw | |
| Pump displacement | 3m 3 /h | 6m 3 /h | |
| Chassis | |||
| diesel engine | Cummins QSB3.9-C80-31 60kW/2200rpm | ||
| Exhaust gas purification | Catalytic converter | ||
| Transmission system | Four-wheel drive closed walking system | ||
| Swing angle | Rear axle swing ±6° | ||
| Tires | 300-15 | ||
| Steering mechanism | ±35° articulated steering | ||
| Walking brake | Multi-disc wet brake | ||
| Parking brake | Hydrostatic brake | ||
| Fuel tank | 30L | ||
