Underground Tunneling Drilling Jumbo

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Underground Tunneling Drilling Jumbo

Underground tunneling drilling jumbo is widely applied for construction of roadway, tunnel and culvert in mine, metallurgy, water, power, railway, highway and other projects. This underground drill rig mainly consists of rock drill, drill boom (the bearing, positioning and propelling mechanism), steel structure frame, traveling mechanism and other accessory equipment. This equipment supports several rock drills to work at the same time.

1.The combination of drilling jumbo and slag loading equipment improves construction speed and working condition.
2.It uses drilling and blasting method for underground tunnel construction. Drill-blasting method provides favorable working condition for underground tunneling drill jumbo.
3.Its drilling speed is fast and energy consumption is low.
4.This underground drill rig features small size, compact structure, low center of gravity, high flexibility, stable performance and strong grade ability.
5.This underground tunneling drilling jumbo is configured with anti-jamming device, which features high reliability.

Parameters of Underground Tunneling Drilling Jumbo
Model Unit CMJ2-17S CMJ2-17 CMJ2-30
Adaptive cross section 27 17 30
Hole depth(feed at once) mm 3000 3100 3100
boom 2
Hole diameter Mm Φ43 Φ43 Φ43
Min. turning radius mm 6900 6000 6500
Working range(w*h) mm 2800*2800-5700*5200 2000*2000-5000*4200 3000*3000-6000*5000
Stabilization mm 1980
Water pressure Mpa 0.8-1.2 0.8-1.2 0.8-1.2
Drill rod Mm Drill :B28 drill bit:Φ43 Drill :B28 drill bit:Φ43 Drill :B28 drill bit:Φ43
weight kg 13100 8600 9800
Dimension during transportation
Mm 9750*1650*2370 9750*1650*2370 9750*1650*2370
Model Unit CMJ1-14S CMJ1-14
Adaptive tunnel dimension 14 14
Hole depth (feed at once) mm 2100 2100
Hole diameter mm Φ43 Φ43
Min. turning radius mm 6000 6000
Adaptive cross section(w*h) mm 2140*2400-3500*4100 2000*2200-3500*4100
Stabilization while drilling Mm By jack By jack
Stabilization mm 2140 1930
Rod size mm B28*/2475 B28*/2475
Weight kg 8000 5300
Maintenance of Underground Tunneling Drilling Jumbo
A. Daily or Frequently Required Maintenance
B. Periodical Maintenance
C. Maintenance Adjustment on Particular Case

Sometimes we need to adjust the maintenance period and frequency in compliance with the different conditions like temperature, humidity and workload etc to better protect the machine.