Hollow grouting rock bolt is a hollow anchor rod that utilizes the elastic extension of the free section of the hollow rod body to apply pre-stress to the hollow rod body, actively providing the support force required for strengthening the rock and soil. It mainly achieves the goal of surrounding rock reinforcement by limiting the deformation of the surrounding rock, and has been widely used in tunnels, slopes, water conservancy, railways, mines, and underground engineering.
primary Components
1. Anchor head: The barb on the anchor head can position the anchor rod in the drilled hole and ensure that the rod body is well centered.
2. hollow bar: The most important construction in the assembly, playing a major role in anchoring and supporting.
3. Stop plug: During the grouting process, maintain the grouting pressure to fully fill the gaps in the surrounding rock with grout.
4. Dome plate: withstands greater stress in the surrounding rock.
5. Nut: Concentrate the stress in the surrounding rock onto the base plate.
Handan Zhongfu Industrial and Mining Accessories Co., Ltd. was established in 2011, located in Hebei-Yongnian, a famous fastener industry base in China, covering an area of more than 25,000 square meters. It is a modern high-tech enterprise integrating research and development, production and sales of industrial and mining supporting materials, anchoring agent automation workshop, screen workshop and bolt workshop. The annual export volume is 29,000 tons and the annual turnover is 60 million US dollars. Supporting materials are exported to more than a dozen countries and regions such as Canada, Peru,Mexico, Africa, India, Russia and Indonesia.
The company has 260 employees, including 16 high-tech researchers. The company has 78 sets of automation equipment, domestic advanced anchoring agent and anchor rod production line, fully automatic mesh and pallet production line and other domestic and foreign advanced equipment.
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