R32 steel hollow bar is one kind of the R-thread self-drilling rock bolt.It is composed by hollow anchor bar, anchor nut, anchor plate, anchor coupler, drill bit, centralizer, and the hollow anchor bolt can be cut and lengthened by coupling on request conveniently, which makes high piling output possible.
It features a hollow bore for flushing, or simultaneous drilling and grouting because the hollow bolt can be used as grouting channel.
Sinorock is a major drilling tools manufacturer based in China. To ensure the high quality of our Hollow bar,hollow anchor bar,hollow injection bar,steel hollow bar,threaded hollow bar and more, we produce some raw materials by ourselves. For instance,steel hollow bar is mainly used to produce drill rod. Our hollow drill steel bar has high tension and toughness, and the productivity of which is 20000MT/month.
Our steel hollow bar is widely used in mining, road construction, tunnel excavation and slope anchor, and other similar projects. As it has high quality and reasonable price, they have been exported to the United States, Finland, France, Cambodia, Canada and other countries. More information here CONTACT US