When the crawler drilling rig is constructed on a site with soft soil, the crawler and the rail link are easy to adhere to the soil. Therefore, the crawler should be adjusted slightly loose to prev...
The air-leg rock drill relies on compressed air to drive the piston to reciprocate. During the stroke, the piston strikes the shank tail, and during the return stroke, the piston drives the drill t...
The hand-held rock drill was introduced by Ingersoll-RandCo. in 1912. According to the power form, it is divided into four categories: pneumatic, hydraulic, electric and internal combustion drive. ...
In the 2nd century BC, China has used manpower and used bamboo bow elastic force to make the cone drill bit impact the ground to drill. Later, it was used in rural China for a long time. It was not...
Affected by the new crown pneumonia epidemic, the development trend of global mining has become confusing. The industry pays close attention to the trend of the global economy, changes in internati...
Drill pipe is an indispensable machine for mining machinery equipment. Drill pipe and drill bit are working devices of rock drill, which have great influence on the efficiency of rock drilling
Dril...