Brand Name: GY
Material: Steel, 40Cr
Process: Hot Rolling
Model Number: R25
Ultimate Load: 200KN
Yield Point: 150KN

Thread Type: Both left hand and right hand are available
Application: Mining, Tunneling, Slope Stabilization, Foundation Pit and Roof  Supporting of  underground works

(We can also offer other types of self drilling anchor bolts such as R32L/N/S,R38N,R51L/N,T76N/S, with diameters range from 25mm to 76mm, ultimate load  range from  200KN to 1900KN, Yield Point from 150KN to 1600KN)

Gongyan Technology is dedicated to manufacture rock reinforcement products, such as self drilling hollow bar, FRP rock bolt, mining friction bolt, etc.
Self drilling hollow rock bolt (IBO rock bolt, self drill bar, geo-drill injection anchor, self drilling anchor bolt) has been always our main focus since our establishment, through the years of hard efforts on markets, we’ve established a long term relationship business with many clients both at home and abroad.