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T Thread Hollow Anchor Bars

Product description: Kingdrilling T Thread Hollow Anchor The Self Drilling Anchor system consists of a hollow threaded anchor with a sacrificial drill bit that allows drilling, anchoring and grouting in a single operation.Self-drilling anchoring system is mainly used for foundation work such as...
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Product description:

Kingdrilling T Thread Hollow Anchor

The Self Drilling Anchor system consists of a hollow threaded anchor with a sacrificial drill bit that allows drilling, anchoring and grouting in a single operation.Self-drilling anchoring system is mainly used for foundation work such as slope stabilization, tunnel pre-supporting and micro-piling. It is widely used in construction projects such as mining, tunnels, railways, and subways.

T-threaded bolts have trapezoidal thread on the surface. This connection design is more robust and reliable than the rope thread. We offer complete dimensions from T30 to T103.

Thread type: T30, T40, T52, T73, T103, T127, T130.

Thread Standard: International Standard


Product advantage:

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

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

T-thread Hollow Anchor Bar

     Size

Outer Dia
mm

Inner Dia
mm

Ultimate Load
KN

Yield Load
KN

Thread
L/R

Weight
Kg/m

T30/16

30

16

220

180

L

2.7

T30/14

30

14

260

220

L

2.9

T30/11

30

13.5

320

260

L

3.3

T40/20

40

25

539

430

L

5.6

T40/16-1

40

21

660

525

L

6.5

T40/16

40

18

660

525

L

7

T52/26

52

26

929

730

L/R

10.0

T73/56

73

56

1194

785

R

11.1

T73/53

73

53

1160

970

R

12.3

T73/45

73

45

1630

1180

R

17.8

T73/35

73

35

1980

1355

R

21.2

T76/51

76

51

1600

1200

L/R

16.5

T76/45

76

45

1900

1500

L/R

19.7

T103/78

103

78

2282

1800

R

24.9

T103/51

103

51

3460

2750

R

43.4

T111/82

111

82

2640

2000

R

25

T111/75

111

75

3650

2750

R

34.5

T127/103

127

103

2620

2030

R

28.6

T130/60

130

60

7940

5250

R

75.0


How to order:

Types + Length

Drill Bits: Head Design + Diameter + Thread

Coupling Sleeve: Diameter + Length + Thread

Nut: Length + Diameter

Plate: Shape + Dimension


FAQ:

1. Can I expect a quality products?

A: Yes. mature production technology ensuring the quality satisfy international request.


2. How to control quality?

A: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.


3. What is the general delivery time?

15 working days for DTH bits.

20-25 working days for DTH hammer

3-5 working days for ex stock items.


4. Methods of Payment:

T/T (Telegraphic Transfer) or Western Union.

12. What is the materials?

Steel is TIMKEN, Alloy is from T6 from Element Six.


5. How to choose the suitable head face of the DTH drill bit?

a. Concave:

Suitable for all kinds of formation, especially for deep well drilling, perpendicularity of the hole is wonderful.

b. Convex: 

Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.

c. Flat:        

Suitable for special hard formation stratum, especially for fracture, crack spacing and complex formation drilling effect is very good, has the good perpendicularity of the borehole.




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