Underground Tunneling Drilling Jumbo

Description
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.

Features
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 (L*W*H)	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.