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

hollow steel grouting anchor

hollow steel grouting anchor
Product Detailed
1.Hollow steel grouting anchor 2.Made of seamless steel tube 3.Hollow design and high strength 4.Used in tunnel,mining, etc.

                                                

Hollow rock bolt consists of anchor rod, anchor head, grouting stopper, arch plate and nut. The anchor rod is made of seamless steel tube with high strength. Hex nut and hemispherical nut are available which are all machined. You can also choose square plate or round plate. 

 Common hollow anchor bolt has been widely used in tunneling, mining, slope stabilization and roof supporting of underground works, suitable for good or medium rock surroundings. 

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%

  Also available hot dip galvanized rods and accessories, special diameter can customize.

Plate dimension: 120*120*4mm,120*120*6mm,150*150*6mm,150*150*8mm.

  

hollow steel grouting anchor



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