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: steel,40Cr
Process:hot rolling
Model Number:R25N,R32L/N/S,R38N,R51L/N,T76N/S,T30/11,T40/16
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