With the continuous expansion of the scale of mining projects and the development of the mining machinery manufacturing industry, the newly developed rock drill jumbo has gradually become the main equipment for mechanized rock drilling. Its advantages are that it can greatly improve the driving speed and mining efficiency, reduce the labor intensity of workers and improve the operating conditions. The wide application of various rock drill jumbos marks the improvement of the mechanization of mining.

What is a rock drill jumbo?

Rock drill jumbo is a new type of rock drilling equipment. It is one or several rock drills together with automatic thrusters mounted on a special drill arm or drill frame and equipped with a walking mechanism to mechanize rock drilling operations.

Types of rock drill jumbos

1. Rock drill jumbos contain flat road drill jumbo, mining drill jumbo, anchor drill jumbo, and open cutting rock drill jumbo according to the usage.

2. Rock drill jumbos include track, tire, and crawler-type drill jumbos according to the traveling mechanism.

3. The number of rock drill jumbos includes single, double, and multi-machine.

Application

1. Mine tunneling and mining operations, retrieval operations, railroad tunnels, and international projects.

2. Rock-cutting operations with a roadway section larger than 10 square meters.

3. Operation which is difficult to be guaranteed by manpower. For example the requirement of drilling parallelism for the straight line hollowing method of flat roadway boring, the requirement of drilling angle for the bottomless column segmental collapse method.

Development of rock drill jumbos

1. Hydraulic rock drill jumbo used with a pneumatic rock drill.

2. Full hydraulic rock drill jumbo used in conjunction with hydraulic rock drills.

3. It has replaced hand-held or air-legged rock drills and achieved a high level of the mechanized rock drilling operation.

In other words, rock drill jumbos have become the main rock drilling equipment in mining, roadway excavation, and tunneling.

How to choose a rock drill jumbo?

Because of the complicated structure type of rock drill jumbos, the function and application range of the whole machine are different, so it is important to choose the model reasonably. We need to consider the reasonableness and advancement of the technical and economic indexes of the selected equipment when choosing the rock drill jumbos.

1. Technical indicators

① Ensure fast rock drilling speed, stable and reliable work, simple structure, and easy operation and maintenance.

②Meet the requirements of various rock drilling and blasting techniques for drilling layout and depth, as well as the requirements of roadway section size and transportation mode.

2. Economic indicators

It includes investment, energy consumption, material consumption, maintenance management, equipment depreciation, and other expenses.