Self-drilling anchor bolt

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self-drilling anchor bolt consists of anchor rod, steel drill bit with alloy head, anchor coupling(optional),arch plate, grouting stopper and hex nut. It has been widely used in tunneling, mining, slope stabilization, tunnel diseases treatment and roof supporting of underground works. It integrates functions drilling, grouting and anchoring at one time and is suitable for difficult grounds (clay, sand, friable…etc). Hollow anchor rod is made of seamless tube with high strength. Specification GYZ25 GYZ32 GYZ32 GYZ38 GYZ51 GYZ63 GYZ76 GYZ89 GYZ103 Exterior 25 32 32 38 51 63 76 89 103 Interior 13 23 20 19 28 43 56 68 83 Breaking load 200 240 280 530 838 1100 1380 1600 1980 Tensile yield point 150 190 230 440 693 909 1140 1280 1636 Drill diameter 42 51 51 76 90 90 102 115 140 Delivery length 1.0/1.5/2.0/2.5/3.0/3.5/4.0/4.5/5.0/6.0 1) also available hot dip galvanized anchor bolts 2) left hand only unless otherwise noted 3) right hand bolts 4) kinds of drill bits are optional for different ground conditions

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Luoyang Gongyan Technology Co.,Ltd

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