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R Thread Hollow Anchor Rod

R Thread Hollow Anchor rod Product details: Self drilling anchor bolt system is mainly used for slope stabilization, foundation with micro piles and tunneling, it’s also widely used in the railway system, metro project, can be installed in sites with weak rocks, loose soil, weathered layer, sand...
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R Thread Hollow Anchor rod

Product details:

Self drilling anchor bolt system is mainly used for slope stabilization, foundation with micro piles and tunneling, it’s also widely used in the railway system, metro project, can be installed in sites with weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formation. The unconsolidated ground condition favor the self drilling anchor bolt technique for fast and simple method of installed compared to the traditional method.

Thread type: R25, R28, R32, R51.

Thread standard: ISO10208, ISO1720, etc.


R-thread Hollow Anchor Rod

Size

Outer Dia
  mm

Inner Dia
  mm

Ultimate Load
  KN

Yield stress
  KN

Weight
  Kg/m

R25N

25

12

200

150

2.3

R32L

32

20.5

210

160

2.9

R32N/1

32

20.5

280

230

2.9

R32N

32

18

280

280

3.5

R32S/1

32

18

360

280

3.5

R32S

32

15

360

280

4.1

R38N/1

38

22.5

500

400

4.8

R38N/2

38

21

500

400

5.6

R38N

38

19

500

400

6

R51L/1

51

39

550

450

5.6

R51L

51

36

550

450

7

R51N/1

51

34

800

630

7.7

R51N

51

33

800

630

8.5

 

How to order:

Types + Length

Drill Bits: Head Design + Diameter + Thread

Coupling Sleeve: Diameter + Length + Thread

Nut: Length + Diameter

Plate: Shape + Dimension

 

FAQ:

1. 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.


2. Fast delivery time:

A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.


3. Competitive price:

A: KINGDRILLING factory can supply you the lowest price due to direct sale to customers without distributor!


4.What is the Application?

Mining, Quarrying, Tunneling, Construction, Geological Exploration, Water-well Drilling, Oilfield & Gas Industries.


5. What is the materials?

Steel is 42CrMo, Alloy is from from ZHUZHOU 601


6.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.




Hot Tags: R thread hollow anchor rod, China, manufacturers, price, in mining, made in China
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