Description
CMJ series single boom jumbo is mainly applied for mine, water, power, highway, railway, national defense, municipal engineering and other roadway construction projects. Our crawler drill jumbo features stronger gradeability. According to different applications, we have explosion proof and non-explosion proof single-boom jumbos for your selection.

Features
1. Adopting modular design, this single boom jumbo features small size, compact structure, low center of gravity, high flexibility and stable performance.
2. The drill boom can position quickly and precisely.
3. With telescopic boom, the equipment can cover larger drilling area by increasing propeller’s pitch angle.
4. It is usually used to drill the blast hole. But it can also be applied to drill bolt hole when equipped with our patented propeller.
5. The single boom jumbo consumes less energy and generates lower noise when drilling, which greatly promotes construction efficiency and quality.

Specifications

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
Dimension during transportation (L × W × H)	Mm	7700 × 1400 × 2350	7000 × 1060/1130 × 1960
Water pressure	Mpa	08-1.2	0.8-1.2

Maintenance of Double Boom Jumbo
A. Daily or frequently required maintenance
B. Regular maintenance
C. Maintenance adjustment in particular case
Sometimes we need to adjust the maintenance period and frequency in accordance with different conditions like temperature, humidity and workload etc. to better protect the machine.