Sinorock is the professional self drilling anchor manufacturer which has plenty of experience in all the anchoring field.
Sinorock - its background in underground mining construction methods and their surface construction experience provided them the skills necessary to excel in the field. Now, with four generations of miners in the company, worldwide experience and a team of professional employees,Sinorock has the ability to overcome obstacles fast and efficiently.
The Characters of self drilling hollow bar:
High penetrability bit
Easy to penetrate various rocks.
High-strength coupling elongated by mechanical cutting technology Thus, self-drilling anchor, which is characterized by being elongated while drilling, can be used at the place with narrow space, achieving the aim of rock reinforcement with extra-long anchor.
High-strength plate and nut
The stress of surrounding rock is uniformly transferred to the rock wall, realizing the purpose of support each other between surrounding rock and anchor.
Continuous international standard wave-shape thread Thus anchor can be used with bit to drill holes.
Unnecessary to be pulled out
Hollow steel can be used as grouting channel.
High pressure grouting stopper
Grouting pressure can be kept at a high level, and the cracks are fully filled and the fractured rock is improved.
Embodies drilling, grouting and anchoring as a whole
It's unnecessary to take the measures of sleeve protecting and pre-grouting to drill holes in condition to various surrounding rocks since this anchor and significant anchoring and grouting are achieved.