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Brand Name: GYMaterial: Steel, 40Cr
Process: Hot Rolling
Model Number: R25, R32L/N/S, R38N, R51L/N, T76N/S, T30/11,T40/16
Ultimate Load: 200-1900KN
Yield Point: 150-1600KN
Application: Mining, Tunneling, Slope Stabilization, Foundation Pit and Roof Supporting of underground works
Hollow bar self-drilling anchor is a bolting solution for unstable ground conditions such as sand, gravel, silt and clays, and in soft to medium fractured rock formations.
A hollow bar self-drilling anchor system consists of: a hex nut, a bearing plate, a coupling sleeve which enables the flexibility in length, hollow anchor bar(s) and a sacrificial drill bit.
