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Prestressed rock anchor

Prestressed rock anchor

Prestressed rock anchor consists of a hollow threaded (rope thread) rod with a expansion shell type anchor head, plate, nut, and an extension coupling.

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Features:

1. By turning the anchor rod, the shell of anchor head inside the hole will be expanded to increase the friction between the anchor rod and the hole wall, it results in prestress to reinforce the rock in a short time. 
2. it can rapidly form the initial support, then guarantee the stability and prevent the deformation of surrounding rock.

Product details:

Detail

Detail

Detail

Detail


Technical specifications:

  • R25
  • R32
R25 anchor rod
  Outside Diam. mm Average internal diam. mm Ultimate load capacity KN Yield load capacity KN Weight kg/m
R25N 25 14 200 150 2.3
R25 anchor coupling
  Outside Diam. mm Length mm Weight kg    
R25N 34 150 0.58    
R25 domed plate
  Dimension mm Thickness mm Hole diam. mm weight kg  
R25N 150*150 8 30 1.4  
R25 hex nut
  Key size mm Length mm Weight kg    
R25N 41 35 0.25    
R25 anchor head
  Type weight kg      
R25N Expansion shell 1.47      

The above parameters are for reference, and welcome to send drafts for specially design and samples for processing.
R32 anchor rod
  Outside Diam. mm Average internal diam. mm Ultimate load capacity KN Yield load capacity KN Weight kg/m
R32N 32 18.5 280 230

3.4

R32S 32 15 360 280 4.1
R32 anchor coupling
  Outside Diam. mm Length mm Weight kg    
R32N 42 145 0.8    
R32S 42 190 1.02    
R32 domed plate
  Dimension mm Thickness mm Hole diam. mm weight kg  
R32N 200*200 10 35 3  
R32S 200*200 12 35 3.7  
R32 hex nut
  Key size mm Length mm Weight kg    
R32N/R32S 46 45 0.35    
R32 anchor head
  Type weight kg      
R32 Expansion shell 1.63      

The above parameters are for reference, and welcome to send drafts for specially design and samples for processing.

 

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