sinorockco

Sinorock provides a variety of self drilling hollow anchor bolt.It is available in different dimensions from R25 to R130.

It is mostly used for weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formation. In forepoling of the tunnel and a variety of slope retaining in the supporting work well to reach the ideal support effect.

Features :

1. Self drilling hollow anchor bolt have two performances :one is drilling ,the other is grouting. The anchor bolt have these features: reliable, efficient and convenient construction.

2. In a variety of complex formation of the anchoring effect are excellent.

3. It emphasized that close to the rock surface of flexible support systems to better play to their strength of rock, restraining deformation of surrounding rock, restoration of surrounding rock stress balance.