1.Self-drilling rock anchor 2.Easy to cut through various rocks with a drill bit at the anchor head 3.With high quality

       Selfdrilling rock anchor  is made of seamless steel pipe with thick wall. It consists of anchor rod, plate,nut, coupler,grouting stopper and drill bit. It is easy to cut through various rocks with a drill bit at the anchor head. 

      With the continous international standard wave-shape thread, the self -drilling anchor can be used to drill holes with the help of bit. With a hign-strength couplerm any length could be available. Thus it integates anchoring, drilling and grouting as a whole.

Application Field:

1.tunnel presupport

2.roof support in underground work

3.slope and roaded reinforcement

4.base bit support as anchoring

standard	outside diameter	internal diameter average	ultimate load capatity	yield load	tensile strength	yield strength	thread type
	mm	mm	kn	kn	N/mm2	N/mm2
R25N	25	13	200	150	720	560	ISO10208
R32N	32	18.5	280	230	720	560	..
R32S	32	15	360	280	740	560	..
R32L	32	20	220	160	740	560	..
R38N	38	19	500	400	740	560	..
R51L	51	36	550	450	740	560	..
R51N	51	33	800	630	740	560	..
T76N	76	51	1600	1200	740	560	ISO1720
T76S	76	45	1900	1600	740	560	..
T30/11	30	11	320	260	740	560	..
T40/16	40	16	660	525	740	560	..

High quality self-driling rock anchor bolt