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T Thread self drilling rock bolt

The Self Drilling Anchor system is comprised of a hollow threaded anchor bar with a sacrificial drill bit that performs drilling, anchoring and grouting in a single operation. Self drilling anchor system is mainly used in slope stabilization, tunneling pre-support, foundations with micro piles etc projects.

Advantages and Characteristics as below:

1. No casings required, because anchor bars can be drilled into loose soils without needing casings to support the boreholes.

2. Fast drilling and installation, because drilling, installation and grouting are in a single operation.

3. Both rope threads and trapezoid threads are robust and ideal for rotary-percussive drilling and ensuring a high level of bond with the borehole gout.

4. The hollow core not only serves for flushing during drilling, but also for grouting after drilling.

5. Continuous threads ensure the bars can be cut and coupled at any point, or extended.

6. Different anchor bits are available for different ground conditions.

T thread anchor bar with a trapezoidal thread, which ensure stronger and reliable connection between bar and accessories when compared with rope thread, we supply full sizes from T30 to T103.



Size

O.D(mm)

I.D(mm)

Ultimate Load(KN)

Yield Load(KN)

Weight(kg/M)

T76N-49

76.0

49.0

1600

1200

16.5

T76S-45

76.0

45.0

1900

1500

19

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

Steel grade

Acc. to EN10083-1 / EN10210-1

Thread direction

Left hand  / Right hand

Thread standard

International standards


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