Whether mining,tunneling,hydroelectric or civil construction.The Sinorock brand embodies a unique concept creating fundamental advantages over other hollow bar manufacturers , including the significant reduction in installation time and associated labour costs, on-site adjustability and the preservation of steelwork integrity and protective coatings.
Sinorock has earned our reputation as one of the safest, most experienced hollow bar manufacturers in the China.During the past few years,we’ve performed over one and a half million meters of self drilling hollow bar for highways,tunneling,hydroelectric,slope foundation,etc.
Sinorock is a is an established self drilling hollow bar manufacturer with a proven track record for over 5 years, in the manufacturing and distribution of both standard and special hollow bars.We have the broad range of capabilities in the areas of anchoring products, as well as a garden variety of standards. As a full line supplier we provide the market with the service, quality and variety of products that has made us a leader.
Sinorock's Self-drilling hollow bars are also used to hold down power transmission towers and in radio tower reaction blocks.The nuclear power industry uses Self-drilling hollow bars in a number of ways. With their higher quality control inspections, they have found hollow barproblems including anodic corrosion occurring between zinc and steel in presence of water.Self-drilling hollow bars used in mining and foundations as also known as rock anchors. Part of the anchor bonded to rock or concrete by cement grout, resin, or fixed by a mechanicalanchor. The upper portion, or free length, is left un-grouted, but is grouted afterwards to provide protection against corrosion. They are used in retaining walls, tunnels, mines, slope stabilization, and rock fall protection.