http://www.rockbolting.netExport DepartmentAlex YanPhone: +86 - 379 - 63501959/+86 - 15838868783Fax: +86 - 379 - 63501159
2-1-1601, Yinrun Central Plaza, the intersection of Yongtai Street & Taikang Road, Luoyang, Chinaluoyang, HenanChina, 471000Web Page Link: http://www.toboc.com/luoyanggongyantechnologycoltd746575D&B D-U-N-S Number: 4084191214
The self drill hollow bar system is comprised of a hollow threaded bar with an attached drill bit which performs drilling, anchoring and grouting during one single operation. The hollow threaded bar allows air and water to freely pass through the bar during drilling to remove debris and then allow grout to be injected immediately after drilling is completed. Grout will fill the hollow bar and completely covers the entire bolt. Anchor coupler will be introduced once bolt length needs to be extended while anchor nuts and anchor plate are used to provide the required tension. The self drilling hollow bar are known for their excellent load capacity and are available in 3 patterns (L, N, S) with diameters from 25-76mm.
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Luoyang Gongyan Technology Co.,Ltd