White Hollow Grouting Self Drilling Anchor Bolt

Abiding by transparent business policies we are engaged in offering our reliable patrons a broad array of Hollow Grouting Self Drilling Anchor Bolt that are successfully used for anchoring in poor ground cohesive and non-cohesive soils and in case of unstable boreholes. Main applications are:
Tunneling and Mining
*rock bolting
*ace anchoring
*reinforcement ahead of the tunnel face - forepiling
*foot piles
*tunnel portals trenches and cut and cover areas
Special foundations
*reinforcement of excavation pits dams and slopes - grouted anchors
*anchorage of retaining walls and noise barriers
*pile foundation and buoyancy control - grouted piles
Avalanche protection structures
*anchorage of avalanche barriers

Brand Name: GY
Material: steel40Cr
Process:hot rolling
Model Number:R25NR32L/N/SR38NR51L/NT76N/ST30/11T40/16
Ultimate Load:200-1900KN
Yield Load:150-1600KN

System description
1 hollow bar anchor with continuous hot-rolled outside thread
2 application as injection anchor without casing especially for non-stable boreholes
3 self-drilling installation utilization of the anchor bar as drill rod with a single-use drill bit
4 easy extension of the anchor bars by couplings
5 grouting or development of the grout body either simultaneously with drilling using a rotary injection adaptor or afterwards
6 assembly of the anchor head with the anchor plate and the nut