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R25 SDA Bolt

   
  • R25 SDA Bolt
Product Details

R25 SDA bolt is one of R-thread self-drilling anchor bolt. It is composed by hollow anchor bar, anchor nut, anchor plate, anchor coupler, drill bit, centralizer, and the hollow anchor bars can be cut and lengthened by coupling on request. It is safe, reliable and time-saving, also it can be installed and operated simply. R25 SDA bolt provides higher bonding stress than smooth steel pipe depending on continuous wave thread. It is mainly used for tunneling, mining, slope stabilization and foundation support.

 

Features

1. Safe, reliable, and time saving.
2. Simple installation & operation.
3. Choice of drill bits for different ground conditions.
4. Grouting works synchronize with drilling or after drilling. Grout can fill fractures effectively.
5. Anchor bars can be cut and lengthened on request, applying to narrow spaces.
6. It provides higher bonding stress than smooth steel pipe depending on continuous wave thread.

 

Application

• Tunneling
• Soil Nailing
• Mining
• Slope Stabilization
• Hydroelectric Station
• Civil Construction
 

Specifications
Sample Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(KN)
Yield Load
(KN)
Weight
(Kg/m)
Thread
R25N 25 12 200 150 2.3 ISO 10208

 

Anchor Coupler
Sample Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg)
Thread
  R25N 36 150 0.66 ISO 10208

 

Anchor Nut
Sample Size Type Key Size
(mm)
Length
(mm)
Weight
(Kg)
   R25 Hex Nut 41 35 0.27
  R25 Domed Nut 41 39 0.30

 

Anchor Plate
Sample Size Type Dimension
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg)
  R25N Domed Plate 150*150 8 30 1.40

 

Drill Bit Adapter
Sample Hollow Anchor Bar Drill Bit Length
(mm)
Weight
(Kg)
  R25N R32 50 0.09

 

Drill Bit
Sample Type Size Diameter (mm)
  EX R25 ø42, ø51
  EXX R25 ø42, ø51
  ES-F R25 ø42, ø51
  ESS-F R25 ø42, ø51
  EY R25 ø51

 

Description

R25 SDA bolt is one of the R-thread self-drilling anchor bolt. It is composed by hollow anchor bar, anchor nut, anchor plate, anchor coupler, drill bit, centralizer, and the hollow anchor bars can be cut and lengthened by coupling on request. Self drilling anchoring system is an advanced system which can ensure the anchoring effect for complex ground conditions. It can be integrated with the functions of drilling, grouting and anchoring

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