Hollow bolts are mainly used in railways, highways, tunnels, mines, water conservancy projects, slopes, dams, bridge foundations, rivers, seas and lakes, high-rise building foundations and building reinforcement projects.
Through the middle rod body to the bolt slurry, it can achieve the purpose of consolidating the broken rock mass, forcing the partition control and the rod body force locking, which can form support with the rock mass stably and quickly, and the rock mass can rise steadily.
Hollow bolt components: hollow bolt body, stopper, backing plate, nut and anchor head (drill bit)
Models of hollow bolts: diameters are 25, 28, 30, 32, 50, etc., thicknesses are 3, 5, 6mm, etc.
The length of theanchor rodcan be customized according to customer needs. Welcome your contact and visit.
Post time: Jul-25-2026