Self Drilling Anchor Hollow Bar 45# T76n/51 3m for Underground, Mining and Buiding

• Product Type: Rod
• Material: Bright
• Carbon Content: Medium Carbon
• PCD: 25mm-103mm
• ET: +0/-0.2mm
• Transport Package: Strip Bundle
• Model NO.: T76N/51
• Specification: 25mm to 103mm
• Trademark: SHANSHUI SPECIAL steel
• Origin: Liaocheng, Shandong
• HS Code: 7311900
• Production Capacity: 50000ton

Product Description

SELF-DRILLING ANCHOR BOLT

Self drilling anchor system for application in soil nailing, rock bolting, micro-pipling, tunneling, mining and infrastructure.

WHAT IS SELF-DRILLING ANCHOR SYSTEM?

Self drilling anchor system is a type of ground anchor used to provide stability in soil or rock formations. The system typically consists of a hollow anchor bar with a drill bit on one end and a coupling on the other. During installation, the drill bit is used to bore a hole into the ground while simultaneously injecting grout into the hole to fill any voids. The anchor bar is then inserted into the hole and the grout is allowed to set, creating a bond between the anchor and the surrounding ground. This creates a stable foundation that can support a variety of structures and engineering projects. Self drilling anchor systems are commonly used in construction, mining, and tunneling applications.

Product Description

Shanshui Special   T thread Self Drilling Anchor Bars

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.

Product advantages

1. High construction efficiency:  T76 Self-drilling Anchor 45#  Hollow Bar can complete the construction with one drilling and grouting. It has few construction steps and high construction efficiency.
2.Strong adaptability: T76 Self-drilling Anchor 45#  Hollow Bar can be drilled and grouted at one time without pulling out the drill pipe. It can still be constructed normally in broken surrounding rock. It can be applied to various types of surrounding rock and has stronger adaptability.
3.Low labor intensity: T76 Self-drilling Anchor 45#  Hollow Bar can be constructed using an anchor drill, which is easier to mechanize and has less labor intensity than conventional pipe sheds.
4.High safety: Workers can stay away from the tunnel face during construction of the T76 self-propelled hollow grouting anchor, which is safer.
5. Low overall cost: Although the material cost of T76 Self-drilling Anchor 45#  Hollow Bar  is slightly higher than that of the conventional steel flower tube shed, its construction efficiency is high, it can adapt to various unpredictable surrounding rock conditions during tunnel construction, shorten the construction period, and also indirectly reduce the cost of the project. The cost of capital, equipment rental, etc. is eliminated, so the overall cost is lower

 

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)
T30-11	30.0	11.0	320	260	3.3
T30-14	30.0	14.0	275	220	2.9
T30-16	30.0	16.0	245	190	2.7
T40-16	40.0	16.0	660	525	7.1
T40-20	40.0	20.0	540	425	5.6
T52-26	52.0	26.0	930	730	10
T73-56	73.0	56.0	1035	830	10.8
T73-53	73.0	53.0	1160	970	14
T73-45	73.0	45.0	1600	1270	17.5
T103-78	103.0	78.0	2270	1800	25
T103-51	103.0	51.0	3660	2670	44
Thread direction: Left hand / Right hand
Thread standard: ISO10280 / ISO1720 / Other international standards

Detailed Photos