Pre-stressed hollow grouting anchor is consisted of steel shell-expansion anchor head, hollow full-thread anchor bolt body, stop-grouting plug, backing board, nut, adapter sleeve, etc.

The water swelling anchor produced by our company is a series of products which are constantly summarized and innovated according to the actual usage conditions at home and abroad.

Common hollow grouting anchor is consisted of anchor head, hollow full-thread anchor body, stop-grouting plug, backing board and nut.

Pre-stressed hollow grouting anchor is consisted of steel shell-expansion anchor head, hollow full-thread anchor bolt body, stop-grouting plug, backing board, nut, adapter sleeve, etc.

Self-drilling (self-propelled) hollow grouting anchor is consisted of carbide drill, hollow full-thread anchor bolt body, stop-grouting plug, backing board, nut, adapter sleeve, etc.

It is consisted of nut, backing board, stop-grouting plug, hollow anchor bolt body, grouting channel, slurry outlet channel, ventilation channel, connecting section, solid anchor bolt body, anchor head and anchor hole.