The full hydraulic open-pit rock drilling rig is one of the most commonly used drilling machines in domestic construction departments. It is mainly used in open-pit mines, the cement and building materials industry, the stone market, construction, and road engineering quarry construction. Currently, most of the machines used domestically are crawler-type with a single-arm drilling mechanism, primarily used for drilling downward blast holes. The diameter of the blast holes typically ranges from 64 to 102 mm, with a maximum drilling diameter of up to 127 mm, and the drilling depth is mostly within the range of 15 to 20 meters. It uses D38 mm, D45 mm, and D51 mm diameter round coupling drill rods or MF drill rods, as well as ball tooth drill bits with diameters ranging from 64 to 112 mm.

There are two methods for rock drilling and excavation: the drilling and blasting method and the mechanical rock breaking method. In domestic construction, the drilling and blasting method is primarily used, with operational areas concentrated in tunnel and culvert construction within infrastructure projects, as well as in shaft excavation for underground mining production.

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In our country's mining resources, underground mining resources account for a large proportion. The extraction of underground mining resources must be based on the production conditions of the mine, using different drilling and blasting mining techniques. Generally, underground mining can be divided into three forms based on the depth of the drilled blast holes: shallow hole drilling (hole depth 6m), medium-deep hole drilling (hole depth 10 to 30m), and deep hole drilling (hole depth 50 to 60m).

How is a tapered drill rod produced?

Lightweight rock drilling machinery refers to manually operated rock drilling equipment, which has a self-weight of less than 35 kg. It uses manual handheld or air leg support as a working platform, with relatively low impact power and thrust. The commonly used drill tools include hexagonal integral drill rods of H 19mm, H 22mm, and H 25mm, conical connection drill rods, as well as flat chisel drill bits of 38 to 42mm, cross drill bits, and ball teeth drill bits with four or five teeth.

With the rapid development of our country's economic construction, the demand for rock drilling tools in fields such as mining, energy construction, basic engineering, and transportation development is on the rise. At the same time, there are higher requirements for the quality, variety, and performance of these tools. Therefore, it is necessary for us to understand the types of drilling tools, their usage scenarios, and market development trends, in order to produce more and better drilling tool products that meet market demands and improve the overall level of rock drilling tool products in our country.

The full hydraulic tunneling and rock drilling rig is mainly used for tunnel excavation and underground blasting construction projects. This series of drilling rigs uses rubber tires for mobility and a diesel engine as the power system for the entire vehicle. Depending on different construction conditions, various models of drill arms, thrust arms, and rock drilling rods of different lengths are selected for the tunneling drilling rig. Currently, the most widely used full hydraulic tunneling and rock drilling rigs in both domestic and international markets are the Boomer series drilling rigs produced by Atlas Copco.