Luoyang Gongyan Technology Co., Ltd.
Main products:rock bolt,hollow bar,FRP rock bolt,thread bar,friction bolt
Products
Contact Us
  • Contact Person : Ms. Xing kelly
  • Company Name : Luoyang Gongyan Technology Co., Ltd.
  • Tel : 86-379-63501959
  • Fax : 86-379-63501159
  • Address : Henan,Luoyang,Room 1102,Aolin Building, Taikang Road, Wangcheng Avenue
  • Country/Region : China
  • Zip : 471023

expansion sheel anchor rod

expansion sheel anchor rod
Product Detailed
1.Expansion sheel anchor rod 2.Rock reinforcement 3.Used in tunneling, minning and other underground supporting

       Expansion sheel anchor rod consists of steel shell-expansion anchor head, hollow anchor rod, grouting stopper, arch plate and nut. Coupling and grouting block are optional. 

  It is designed for hard rock at fractured zone with growing joints which may cause loosing of fractured rock and reducing of friction between rocks, resulting in loosing of surrounding rocks in larger area. Applying enough pre-stress would keep its stability.

Product Specification:

specification 

GY25

GY28

GY32

external diameter(mm)

25

28

32

Breaking load(KN)  

≥150-180

≥180-220

≥220-250

Interior diameter(mm)

≥15

≥17

≥22

drilling diameter(mm)

42

42

51

thread type

               left hand

standard length(m)

1.0/1.5/2.0/2.5/3.0/3.5/4.0/4.5/5.0/6.0

length tolerance 

±2.5%

expansion sheel anchor rod



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