The underground roof supports can be used in the secondary support of mine tunnels and mine tunnels, as well as the support and support of mountain tunnels. The underground roof supports can withstand extremely high pressure, support for a long time, and are easier to install, and they are not easy to deform. The underground roof supports are shrinkable, and stable and reliable. Underground roof support is suitable for soft rock formations, and can also reduce the use of pit wood. The maintenance amount is particularly small and it is very environmentally friendly.
The structure of underground roof supports generally includes top beams, leg posts, connectors, tie rods between frames, and backing materials. The cross-sectional shape, geometric parameters and materials of the underground roof supports produced are different. At present, the underground roof supports produced in China mainly include U18, U25, U29, and U36. Among them, U18 and U25 belong to waist positioning; U29 and U36 belong to ear positioning. Due to its low carrying capacity, U18 is rarely produced.
The underground roof support is safe and reliable, can increase the service life of the roadway, reduce the maintenance rate of the roadway, reduce the occurrence of safety accidents, and ensure the safe production of coal mines. Our group will uphold the corporate spirit of being responsible for the country, society, customers, and employees, and produce more mining machinery and equipment that meets national safety standards, and return to the market and society with safer and high-quality products!
