1. Main features and Specification of Hydraulic surface drilling Jumbo,KJ311 ,Boomer 281boomer 282 similar model drilling rig for tunnel
Dimension and Weight
Height 2000/3000 mm
Weight About 12000 kg
Tramming speed, flat ground 10 km/h
Tramming speed-14%=1:7=8º 5 km/h
Noise level <100 dB(A)
Adjustable safety canopy POPS +ROPS
Percussion power 13Kw
Percussion pressure, max. 130bar
Rotation pressure, max. 150 bar
Frequency 62 Hz
Rotation torque 325Nm
Hole size 45-64mm
Rod size R38-H35-R32
Flushing volume 25L/min
Feed roll-over 360°
Feed extension 1600mm
Model K 26F
Type Automatic parallelis
Boom zoom 1200mm
Power cntl. Percussion & collaring
Rotation cntl. Rotation speed adjustable
Rotation direction cntl.
Automatic features Collaring
Feed force cntl. Percussion
Percsn+feed+boom Variable piston pump
Rotation Gear pump
Hydr. tank 240L
Hydr. oil cooler Counter flow
Cable reel 1× K440
Cable length* 100m
Cable size* Φ28mm
Cable type* 3×35+3G6+2×1.5
Water and air System
Compressor 1×JN5, Screw type
Shank lub. Oil mist
Air consumption 0.3m3/min
Shank lub. oil consumption 180-250g/h
Flushing pump 1× CR3
Transmission 4-wheel drive
Oscillation Rear axle ±10°
Service brake Duo-circuit disc brakes
Parking/emergency Multi-disc on trans.
Fuel tank 100L
2.Application of Hydraulic surface drilling Jumbo,KJ311 ,Boomer 281boomer 282 similar model drilling rig for tunnel
KJ311 is a hydraulic drifting jumbo designed fo12-35 m2 cross section in underground mining operations.
Robust universal drilling boom creates ideal face drilling coverage. Automatic parallelism and 360o roll-over enable easy, fast and accurate positioning for face drilling, sideway drilling and bolt hole drilling.
The layout of components provides excellent vision for the operator in drilling and travelling.Powerful and well balanced 4-wheel drive chassis allows the rig to move through limited space and tough terrain in the mines. Duo-circuit service brake and enclosed multi-disc parking/ emergency brake ensure safety in tramming and on ramp slope.
Field proven high frequency hydraulic drifter delivers high performance. Trapezoid shaped percussion piston optimizes shock wave transfer efficiency, enhancing penetration and decrease drilling consumables costs.
Comfortable operator station provides safe working condition. Many automatic features simplified the drilling control and helps the miners to concentrate on fast and accurate drilling.
All service points are easily accessible, which simplifies daily routine maintenance.
3. Hydraulic face drilling Jumbo show of Hydraulic surface drilling Jumbo,KJ311 ,Boomer 281boomer 282 similar model drilling rig for tunnel
4. Working show of Hydraulic surface drilling Jumbo,KJ311 ,Boomer 281boomer 282 similar model drilling rig for tunnel
5.We also provide other Mining operations.