Hollow Anchor Bar

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Hollow anchor bar is the body of a self-drilling anchor, as a hollow steel tube with an outer round thread, hollow anchor has the sacrificial anchor bit connected at one side, plate and nut connected at the other; two hollow anchor bars could be connected together via a coupling, for duties that requiring longer anchors.

Features

Stable quality;
Thread is compatible with ISO and other international standards;
Good mechanical performance.

Applications

Pre-supporting, micropiling for foundation underpinning, slope anchorage, etc.

Parameters

Size	O.D(mm)	I.D(mm)	Ultimate Load(KN)	Yield Load(KN)	Weight(kg/meter)
R25N-14	25	14	200	150	2.3
R32L-22	32	22	210	160	2.8
R32N-21	32	21	280	230	2.9
R32N-18.5	32	18.5	280	230	3.4
R32S-17.5	32	17.5	360	280	3.5
R32S-15	32	15	360	280	4.1
R32SS-14	32	14	405	350	4.3
R38N-21	38	21	500	400	4.8
R38N-19	38	19	500	400	5.5
R38S-18	38	18	560	460	6
R51L-38	51	38	550	450	6
R51L-36	51	36	550	450	7.6
R51N-36	51	36	800	630	7.6
R51N-33	51	33	800	630	8.4
R51S-30	51	30	930	730	9.4
T76N-49	76	49	1600	1200	16.5
T76S-45	76	45	1900	1500	19
T30-11	30	11	320	260	3.3
T30-14	30	14	275	220	2.9
T30-16	30	16	245	190	2.7
T40-16	40	16	660	525	7.1
T40-20	40	20	540	425	5.6
T52-26	52	26	930	730	10
T73-56	73	56	1035	830	10.8
T73-53	73	53	1160	970	14
T73-45	73	45	1600	1270	17.5
T103-78	103	78	2270	1800	25
T103-51	103	51	3660	2670	44
Thread direction		Left hand / Right hand
Thread standard		ISO 10208 / ISO1720 / Other international standards

Industries We Serve

Our rock drilling equipment can be applied in various industries, doing rock drilling and crushing duties for digging, blasting, etc.
We mainly offer 4 series of rock drilling tools: top hammer drilling tools, down-the-hole (DTH) drilling tools, self-drilling anchor system and drag bits.

Tunnelling

Water Well，Geothermal well drilling

Quarry/Aggregate

Mining