rock bolt

    rock bolt has many features. It has a hollow hole in the middle of the bar that is designed for flushing. The drilling and grouting process can be combined into single operation. There is left-hand thread on the surface which is designed for connection to standard drill tooling. rock bolt is manufactured from thick wall steel tubing, and then cold rolled to rope thread. The rolling process of rock bolt refines the crystaline structure of the steel, increasing the yield strength and producing a durable drill rod suitable for a wide range of applications.
    rock bolt is always used with many accessories, such as extension coupling, bear plate, hex nut, gap spacer and drill bit. rock bolt also can be galvanized to against the corrosion.
    Corrosion is a very complex process, it is hard to predict the corrosion rates accurately. However, analytical evaluations can be helpful to recommend the need for corrosion protected rock bolts. For this reason, Sinorock has developed a hot dip galvanizing corrosion protection. The full range of rock bolts and accessories is available with his corrosion protection.